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Journal articles on the topic 'Nanorod Layer'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Wong, C. P., and C. L. Mak. "Fabrication and Characterization of ZnO Nanorod Arrays Grown on Nickel-Coated Polyester Fiber." Advanced Materials Research 463-464 (February 2012): 385–93. http://dx.doi.org/10.4028/www.scientific.net/amr.463-464.385.

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Vertical-aligned arrays of zinc oxide (ZnO) nanorod were grown on nickel-coated polyester s for future development of ZnO nanorod-based solar cells. ZnO nanorods with aspect ratio of three were deposited by chemical solution deposition (CBD). Besides, an underlying ZnO seed layer was introduced to grow large-area and continuous layer of ZnO nanorods using pulsed laser deposition (PLD). Structurally, dominating XRD diffraction of the ZnO nanorod arrays was occurred at lattice plane (002) and a specific Raman spectrum was also obtained. Optically, bandgap energy of the ZnO nanorods was 3.95 eV.

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2

Yoshino, Masahiko, Takayuki Ueno, and Motoki Terano. "Nano Texturing and Self-Organization Process for Development of Optical Functional Surface." International Journal of Automation Technology 10, no. 1 (2016): 41–47. http://dx.doi.org/10.20965/ijat.2016.p0041.

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A new fabrication process for an optical resonator is developed by means of a combination of surface texturing using nano plastic forming and self-organization using thermal dewetting. Process conditions are optimized to fabricate an optical resonator that has a double-layer Au nanorod array. The nanorods are 450 nm in length and 150 nm in width. The extinction spectrum of the double-layer nanorod array is measured to evaluate its optical characteristics. It is found that the measured extinction peak corresponds to the theoretical resonant wavelength of a parallel nanorod resonator. It is expe

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3

Wu, Hao, Huichao Zhu, Jianwei Zhang, et al. "Enhanced Acetone-Sensing Performance of a Bilayer Structure Gas Sensor Composed of a ZnO Nanorod Top Layer and a ZnFe2O4 Nanoparticle Decorated ZnO Nanorod Bottom Layer." Sensors 24, no. 23 (2024): 7851. https://doi.org/10.3390/s24237851.

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In this study, we report a high-performance acetone gas sensor utilizing a bilayer structure composed of a ZnO nanorod top layer and a ZnFe2O4 nanoparticle-decorated ZnO nanorod bottom layer. ZnO nanorods were synthesized via a water-bath method, after which the ZnFe2O4 nanoparticle-decorated ZnO nanorods were prepared using a simple immersion and calcination method. SEM and TEM revealed the porous morphology of the samples and the formation of ZnO-ZnFe2O4 heterojunctions. XPS analysis demonstrated an increase in oxygen vacancy content with the introduction of ZnFe2O4 nanoparticles. Compared t

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4

Shang, Jian, Ye Sun, Teng Zhang, Zhen Liu, and Hong Zhang. "Enhanced Antibacterial Activity of Ag Nanoparticle-Decorated ZnO Nanorod Arrays." Journal of Nanomaterials 2019 (April 30, 2019): 1–7. http://dx.doi.org/10.1155/2019/3281802.

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Silver (Ag) has broad-spectrum antibacterial properties and is widely used in various fields, including in antibacterial coatings for orthopedic implants. For reasons of cost and cytotoxicity, improvement of the antibacterial efficiency of Ag is necessary. The scientific community has also shown a strong enthusiasm in this research area. In this paper, ZnO nanorod arrays were prepared on a titanium (Ti) substrate by seed-assisted hydrothermal method and Ag nanoparticles were deposited by magnetron sputtering to obtain Ag nanoparticle-decorated ZnO nanorod arrays (ZnO nanorods/Ag nanoparticles)

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5

Wang, Xianghu, Chengyu Pan, Hongyu You та ін. "Synthesis of Catalyst-Free Al Doped β-Ga2O3 Nanorod Arrays on Quartz Substrate by a Simple Chemical Vapor Deposition". Nanoscience and Nanotechnology Letters 11, № 9 (2019): 1298–304. http://dx.doi.org/10.1166/nnl.2019.3013.

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The Al doped β-Ga2O3 (β-Ga2O3:Al) nanorod arrays with 3.14 at% Al were successfully synthesized on quartz substrate with β-Ga2O3 seed layer by using chemical vapor deposition (CVD) method. The experimental results showed that the β-Ga2O3 seed layer thickness had important effects on alignment of β-Ga2O3:Al nanorods. At the synthesized temperature of 910 °C, the β-Ga2O3:Al nanorods were random, uneven length and size on seedless layer quartz substrates, disorderly stacked together to shape on quartz substrates with 17 nm thick β-Ga2O3 seed layer and inclined nanorod arrays on quartz substrates

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6

Huang, Chan-yan, Yan Sun, Xin Chen, and Ning Dai. "Multilayer Hybrid Structure of ZnO Nanorod Arrays Imbedded in TiO2 Network as Photoanode." MRS Proceedings 1493 (2013): 111–16. http://dx.doi.org/10.1557/opl.2013.420.

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ABSTRACTWe developed a multilayer hybrid structure by imbedding ZnO nanorod arrays in TiO2 network for each layer, for the pourese of taking ZnO nanorods as the highway of electron transport. ZnO nanorods can be prepared by hydrothermal process, which is simple, low cost and easy control. The ZnO nanorod arrays were grown by reported hydrothermal method, then TiO2 network was constructed by spin-coating titanium precursor sol on ZnO nanorod arrays and calcining. The electrochemical impedance spectrum measurements were taken to study the electrical properties of this kind of hybrids, and the re

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7

Lai, Ming-Hong, Auttasit Tubtimtae, Ming-Way Lee, and Gou-Jen Wang. "ZnO-Nanorod Dye-Sensitized Solar Cells: New Structure without a Transparent Conducting Oxide Layer." International Journal of Photoenergy 2010 (2010): 1–5. http://dx.doi.org/10.1155/2010/497095.

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Conventional nanorod-based dye-sensitized solar cells (DSSCs) are fabricated by growing nanorods on top of a transparent conducting oxide (TCO, typically fluorine-doped tin oxide—FTO). The heterogeneous interface between the nanorod and TCO forms a source for carrier scattering. This work reports on a new DSSC architecture without a TCO layer. The TCO-less structure consists of ZnO nanorods grown on top of a ZnO film. The ZnO film replaced FTO as the TCO layer and the ZnO nanorods served as the photoanode. The ZnO nanorod/film structure was grown by two methods: (1) one-step chemical vapor dep

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8

Wei, Lin, Guang Hua Zhang, Kang Li, Jun Jiao, and Yan Xue Chen. "Growth and Optical Properties of ZnO Nanorod Arrays." Materials Science Forum 663-665 (November 2010): 88–91. http://dx.doi.org/10.4028/www.scientific.net/msf.663-665.88.

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ZnO nanorod arrays were prepared using a chemical solution route on fluorine-doped SnO2 conductive glass pre-coated by a thin ZnO seed layer. Morphology, crystal structure and growth direction of the nanorod arrays were characterized by SEM and XRD respectively. The SEM results demonstrated that ordered arrays of ZnO nanorods grew vertically on the substrate. XRD measurement revealed the ZnO nanorods were grown along the [002] direction of the ZnO crystallites. Under optimal condition, ZnO nanorods with the average length about 6-7 μm and the diameters about 10nm at the tip and 150 nm at the b

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9

Huo, Junchao, Yanjie Hu, Hao Jiang, Wenjuan Huang, and Chunzhong Li. "SnO2 nanorod@TiO2 hybrid material for dye-sensitized solar cells." J. Mater. Chem. A 2, no. 22 (2014): 8266–72. http://dx.doi.org/10.1039/c4ta00083h.

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We have developed a novel SnO<sub>2</sub> nanorod@TiO<sub>2</sub> hybrid material by coating a layer of TiO<sub>2</sub> on the surface of SnO<sub>2</sub> nanorods. The power conversion efficiency (η) of the SnO<sub>2</sub> nanorod@TiO<sub>2</sub> hybrid material electrode is 6.98%, much higher than that of the SnO<sub>2</sub> nanorods electrode (3.95%) and P25 electrode (5.27%).

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10

Singh, Pragya, Firman Mangasa Simanjuntak, Li-Lun Hu, Tseung-Yuen Tseng, Hsiao-Wen Zan, and Jinn P. Chu. "Negative Effects of Annealed Seed Layer on the Performance of ZnO-Nanorods Based Nitric Oxide Gas Sensor." Sensors 22, no. 1 (2022): 390. http://dx.doi.org/10.3390/s22010390.

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Nitric oxide (NO) is a toxic gas, which is dangerous for human health and causes many respiratory infections, poisoning, and lung damage. In this work, we have successfully grown ZnO nanorod film on annealed ZnO seed layer in different ambient temperatures, and the morphology of the nanorods sensing layer that affects the gas sensing response to nitric oxide (NO) gas were investigated. To acknowledge the effect of annealing treatment, the devices were fabricated with annealed seed layers in air and argon ambient at 300 °C and 500 °C for 1 h. To simulate a vertical device structure, a silver na

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11

Chu, Shao-Yu, Mu-Ju Wu, Tsung-Han Yeh, Ching-Ting Lee, and Hsin-Ying Lee. "Investigation of High-Sensitivity NO2 Gas Sensors with Ga2O3 Nanorod Sensing Membrane Grown by Hydrothermal Synthesis Method." Nanomaterials 13, no. 6 (2023): 1064. http://dx.doi.org/10.3390/nano13061064.

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In this work, Ga2O3 nanorods were converted from GaOOH nanorods grown using the hydrothermal synthesis method as the sensing membranes of NO2 gas sensors. Since a sensing membrane with a high surface-to-volume ratio is a very important issue for gas sensors, the thickness of the seed layer and the concentrations of the hydrothermal precursor gallium nitrate nonahydrate (Ga(NO3)3·9H2O) and hexamethylenetetramine (HMT) were optimized to achieve a high surface-to-volume ratio in the GaOOH nanorods. The results showed that the largest surface-to-volume ratio of the GaOOH nanorods could be obtained

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12

FAUZIYYAH, SABRINA GHAIDA, AMARIS EVANIA PUTRI, TOGAR SARAGI, NORMAN SYAKIR, and LUSI SAFRIANI. "PENGARUH TINGKAT KEASAMAN LARUTAN PENUMBUH PADA MORFOLOGI NANOROD." Jurnal Material dan Energi Indonesia 13, no. 01 (2023): 16. http://dx.doi.org/10.24198/jme.v13i01.48777.

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Nanostruktur ZnO satu dimesi (1D), terutama nanorods, memiliki keunggulan diantaranya mudah difabrikasi, proses sederhana serta biaya yang relatif murah. Salah satu faktor yang mempengaruhi proses fabrikasi nanorod ZnO adalah pH dari larutan penumbuhnya. Pada penelitian ini, ZnO akan ditumbuhkan pada seed layer ZnO menggunakan metode self-assembly pada kondisi penumbuhan dalam lingkungan asam (acidic growth) membentuk morfologi nanorod ZnO. Kondisi lingkungan asam dilakukan dengan menambahkan hydrochloric acid (HCl) pada saat proses penumbuhan. Untuk mengetahui pengaruh kondisi lingkungan asam

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13

Redkin, Arkady N., Eugene E. Yakimov, Maria V. Evstafieva, and Eugene B. Yakimov. "Grown and Characterization of ZnO Aligned Nanorod Arrays for Sensor Applications." Energies 14, no. 13 (2021): 3750. http://dx.doi.org/10.3390/en14133750.

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ZnO nanorods are promising materials for many applications, in particular for UV detectors. In the present paper, the properties of high crystal quality individual ZnO nanorods and nanorod arrays grown by the self-catalytic CVD method have been investigated to assess their possible applicationsfor UV photodetectors. X-ray diffraction, Raman spectroscopy and cathodoluminescence investigations demonstrate the high quality of nanorods. The nanorod resistivity and carrier concentration in dark is estimated. The transient photocurrent response of both as grown and annealed at 550 °C nanorod array u

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14

Deachana, Anumut, Paul K. Chu, and Dheerawan Boonyawan. "Zno Nanorod Synthesis via Controlled ZnO Seed Layer by Filtered Pulse Cathodic Vacuum Arc: Luminescence Enhancement." Advanced Materials Research 802 (September 2013): 1–6. http://dx.doi.org/10.4028/www.scientific.net/amr.802.1.

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A simple synthesis route to high-quality ZnO nanorod is reported, utilizing ZnO thin films grown by Filtered Pulse Cathodic Vacuum Arc (FPCVA) deposition as seed layers and continuous growth by hydrothermal method. Depending upon the FPCVA deposited conditions, implanted voltages, thickness and annealing temperature of ZnO seed layer, the surface morphology of the ZnO nanorod on ZnO film was noticeably different. The average diameters of the nanorod on Al substrates varied from about 131.99 ± 23.87 to 418.17 ±75.50 nm. The grown ZnO nanorod showed a high crystallinity with energy gap of 3.37 e

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15

Hamon, Cyrille;, Sergey M.; Novikov, Leonardo; Scarabelli, et al. "Collective Plasmonic Properties in Few-Layer Gold Nanorod Supercrystals." ACS Photonics 2, no. 10 (2015): 1482–88. https://doi.org/10.1021/acsphotonics.5b00369.

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Gold nanorod supercrystals have been widely employed for the detection of relevant bioanalytes with detection limits ranging from nano- to picomolar levels, confirming the promising nature of these structures for biosensing. Even though a relationship between the height of the supercrystal (i.e., the number of stacked nanorod layers) and the enhancement factor has been proposed, no systematic study has been reported. In order to tackle this problem, we prepared gold nanorod supercrystals with varying numbers of stacked layers and analyzed them extensively by atomic force microscopy, electron m

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16

Ran, Chenxin, Yonghua Chen, Weiyin Gao, Minqiang Wang, and Liming Dai. "One-dimensional (1D) [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) nanorods as an efficient additive for improving the efficiency and stability of perovskite solar cells." Journal of Materials Chemistry A 4, no. 22 (2016): 8566–72. http://dx.doi.org/10.1039/c6ta03605h.

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We report a novel 1DPCBM nanorod material as an efficient additive to form a wrinkle-like bicontinuousperovskite layer, where 1D PCBM nanorods can distribute homogenously throughout the film with an enlarged grain size.

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17

Lee, Hsin-Ying, Yu-Chang Lin, Yu-Ting Su, Chia-Hsin Chao, and Véronique Bardinal. "Performance Improvement of GaN-Based Flip-Chip White Light-Emitting Diodes with Diffused Nanorod Reflector and with ZnO Nanorod Antireflection Layer." Journal of Nanomaterials 2014 (2014): 1–6. http://dx.doi.org/10.1155/2014/987479.

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The GaN-based flip-chip white light-emitting diodes (FCWLEDs) with diffused ZnO nanorod reflector and with ZnO nanorod antireflection layer were fabricated. The ZnO nanorod array grown using an aqueous solution method was combined with Al metal to form the diffused ZnO nanorod reflector. It could avoid the blue light emitted out from the Mg-doped GaN layer of the FCWLEDs, which caused more blue light emitted out from the sapphire substrate to pump the phosphor. Moreover, the ZnO nanorod array was utilized as the antireflection layer of the FCWLEDs to reduce the total reflection loss. The light

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18

Mamat, Mohamad Hafiz, Mohd Izzudin Che Khalin, Nik Noor Hafizah Nik Mohammad, et al. "Effects of Annealing Environments on the Solution-Grown, Aligned Aluminium-Doped Zinc Oxide Nanorod-Array-Based Ultraviolet Photoconductive Sensor." Journal of Nanomaterials 2012 (2012): 1–15. http://dx.doi.org/10.1155/2012/189279.

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We have fabricated metal-semiconductor-metal- (MSM-) type ultraviolet (UV) photoconductive sensors using aluminium- (Al-) doped zinc oxide (ZnO) nanorod arrays that were annealed in different environments: air, oxygen, or a vacuum. The Al-doped ZnO nanorods had an average diameter of 60 nm with a thickness of approximately 600 nm that included the seed layer (with thickness~200 nm). Our results show that the vacuum-annealed nanorod-array-based UV photoconductive sensor has the highest photocurrent value of 2.43 × 10-4 A. The high photocurrent is due to the high concentration of zinc (Zn) inter

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19

Chi, Le Ha, Pham Duy Long, Hoang Vu Chung, et al. "Galvanic-Cell-Based Synthesis and Photovoltaic Performance of ZnO-CdS Core-Shell Nanorod Arrays for Quantum Dots Sensitized Solar Cells." Applied Mechanics and Materials 618 (August 2014): 64–68. http://dx.doi.org/10.4028/www.scientific.net/amm.618.64.

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Zinc oxide (ZnO) is recognized as one of the most attractive metal oxides because of its direct wide band gap (3.37 eV) and large exciton binding energy (60 meV), which make it promising for various applications in solar cells, gas sensors, photocatalysis and so on. Here, we report a facile synthesis to grow well-aligned ZnO nanorod arrays on SnO2: F (FTO) glass substrates without the ZnO seed layer using a Galvanic-cell-based method at low temperature (<100°C). CdS quantum dot thin films were then deposited on the nanorod arrays in turn by an effective successive ionic layer adsorption and

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20

Zhong, Wen-Wu, Da-Wei Guan, Yue-Lin Liu, et al. "Effect of Annealing on the Structure and Photoluminescence of Eu-Doped ZnO Nanorod Ordered Array Thin Films." Journal of Nanomaterials 2012 (2012): 1–6. http://dx.doi.org/10.1155/2012/263679.

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Eu-doped ZnO nanorod ordered array thin films were synthesized on glass substrates with a ZnO seed layer via hydrothermal method. XRD reveals that the (002) diffraction peak of films annealed in hydrogen is sharper than that annealed in air. SEM reveals that the nanorods of films annealed in hydrogen are shortened and widened. TEM results demonstrate that the nanorods are single crystalline and the lattice spacing of 0.52 nm agrees with thedspacing of (001) crystal planes alongc-axis. Room temperature photoluminescence (PL) reveals that the PL of films annealed in hydrogen is the strongest and

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21

Liu, Jun Jie, Ming Quan Liu, Yan Yi Liu, et al. "Rapid Hydrothermal Growth of ZnO Nanorods on a Magnetron Sputtered Thick ZnO Seed Layer." Key Engineering Materials 815 (August 2019): 9–14. http://dx.doi.org/10.4028/www.scientific.net/kem.815.9.

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In this work, we report rapid hydrothermal growth of ZnO nanorods on a magnetron sputtered thick ZnO seed layer. The ZnO seed layer on the glass substrarte is monocrystalline and formed by 600 °C annealing for 1 hour after magnetic sputtering. The morphology of the ZnO grain in the ZnO seed layer plays a critical role in the growing of the ZnO nanorods, and the slant ZnO grain results in the slant ZnO nanorod and connected ZnO nonrods. It is found that the average growth of the ZnO nanorods is ~75 nm/minute. The rapid grow rate may be owing to the monocrystallie and the pure water solution of

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22

Li, Jin Sheng. "Precursor Concentration Dependent Morphology-Tunable Hierarchical TiO₂ Nanostructure for Dye Sensitized Solar Cells." Journal of Nano Research 33 (June 2015): 106–17. http://dx.doi.org/10.4028/www.scientific.net/jnanor.33.106.

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Dye sensitized solar cells based on TiO2 nanorod suffers from low dye loading and poor light scattering ability, both of which obstacle the improvement of energy conversion efficiency. In this paper, we have successfully synthesized TiO2 rutile nanostructures with tunable morphology on FTO substrates with a one-step hydrothermal synthesis by changing the Ti concentration in the precursor solution. Three different photoanodes, namely, nanorod layer, nanorod layer with flower-like clusters and nanorod layer with densely packed spheres, are obtained without using any surfactants. The photoanode o

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23

Roy, Anurag, Partha Pratim Das, Mukta Tathavadekar, Sumita Das, and Parukuttyamma Sujatha Devi. "Performance of colloidal CdS sensitized solar cells with ZnO nanorods/nanoparticles." Beilstein Journal of Nanotechnology 8 (January 23, 2017): 210–21. http://dx.doi.org/10.3762/bjnano.8.23.

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As an alternative photosensitizer in dye-sensitized solar cells, bovine serum albumin (BSA) (a nonhazardous protein) was used in the synthesis of colloidal CdS nanoparticles (NPs). This system has been employed to replace the commonly used N719 dye molecule. Various nanostructured forms of ZnO, namely, nanorod and nanoparticle-based photoanodes, have been sensitized with colloidal CdS NPs to evaluate their effective performance towards quantum dot sensitized solar cells (QDSSCs). A polysulphide (S x 2−)-based electrolyte and Cu x S counter electrode were used for cell fabrication and testing.

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24

Zhang, Yong Chang, Xing Jian Jiao, Chen Zhou, et al. "Application of Electrochemical Impedance Spectroscopy in Organic Solar Cells with Vertically Aligned TiO₂ Nanorod Arrays as Buffer Layer." Key Engineering Materials 512-515 (June 2012): 1598–603. http://dx.doi.org/10.4028/www.scientific.net/kem.512-515.1598.

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Single-crystal TiO2 nanorod film was synthesized directly on FTO substrates with various lengths by changing the hydrothermal growth parameters including growth time and growth temperature. The obtained nanorod arrays were incorporated in organic solar cells as buffer layer instead of PEDOT: PSS. Results showed that devices assembled with TiO2 nanorods film of 200 nm in length exhibited a lower open-circuit voltage but a significantly higher short-circuit current density compared to those of normal FTO/PEDOT: PSS/P3HT: PCBM/Al structure with a comparable active layer thickness. Overall the pow

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25

Pan, Yue-Wu, Shuang-Jiao Peng, Ya-Lei Ma, Pei-Jiang CaO, and Feng Hu. "Flat-Type Gas Sensors Based on ZnO Nanorod Arrays." Journal of Nanoscience and Nanotechnology 20, no. 12 (2020): 7800–7807. http://dx.doi.org/10.1166/jnn.2020.18890.

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ZnO seed layers were deposited on silicon and sapphire substrates by the pulsed laser deposition (PLD) method, and ZnO nanorod arrays with different orientation degrees were grown using the chemical vapor deposition (CVD) method. Flat-type gas sensors based on the ZnO nanorod arrays were fabricated, and their gas sensitivity properties were studied. The ZnO seed layer with a thickness of approximately 450 nm exhibits high c-axis orientation and possesses few defects. The ZnO nanorods fabricated on both of the substrates grow along the [0001] direction and contain a large number of oxygen vacan

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26

Ranjith, Kugalur Shanmugam, Ramanathaswamy Pandian, Gomathi Natarajan, Mohammed Kamruddin, and Ramasamy Thangavelu Rajendrakumar. "Optimisation on the Growth and Alignment of ZnO Nanorods." Advanced Materials Research 584 (October 2012): 319–23. http://dx.doi.org/10.4028/www.scientific.net/amr.584.319.

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Synthesis of aligned ZnO nanorods (NRs) is important for electronic and optoelectronic devices. In this work we demonstrate the growth of ZnO nanorods by co-precipitation method using zinc nitrate and hexamine precursors. The samples were characterized by X-ray diffraction analysis, Scanning electron microscopy and Raman spectroscopy. On introducing the seeded substrate into the growth solution, the seeds offer nucleation sites for one-dimensional growth of ZnO nanorods. ZnO nanorod arrays grown on the successive ionic layer adsorption and reaction (SILAR) seed layer found to be irregular and

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27

Zhang, Zaoli. "Synthesis and Microstructure of Antimony Oxide Nanorods." Journal of Materials Research 17, no. 7 (2002): 1698–701. http://dx.doi.org/10.1557/jmr.2002.0250.

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Antimony oxide nanorods were synthesized by the microemulsion method. The nanorods had diameter in the range of 507–175 nm and a length of up to several micrometers. The microstructure of the nanorods was examined by analytical transmission electron microscopy and high-resolution transmission electron microscopy (HRTEM). Large-angle tilt diffraction experiments on the normal nanorods (about 90 nm in diameter) showed that they have an orthorhombic structure. Combining the results of internal standards using the silicon single crystal, it could be concluded that the synthesized nanorod is Sb2O4.

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Kashif, M., U. Hashim, M. E. Ali, et al. "Effect of Different Seed Solutions on the Morphology and Electrooptical Properties of ZnO Nanorods." Journal of Nanomaterials 2012 (2012): 1–6. http://dx.doi.org/10.1155/2012/452407.

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The morphology and electrooptical properties of ZnO nanorods synthesized on monoethanolamine-based seed layer and KOH-based seed layer were compared. The seed solutions were prepared in monoethanolamine in 2-methoxyethanol and potassium hydroxide in methanol, respectively. Zinc acetate dihydrate was as a common precursor in both solutions. The nanorod-ZnOs were synthesized via the spin coating of two different seed solutions on silicon substrates followed by their hydrothermal growth. The scanning electron microscopy (SEM), X-ray diffraction (XRD), photoluminescence (PL), and Raman studies rev

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29

Dwi Asmarita, Yulmaisi, Naufal Fiego Fadhullah, Nandang Mufti, et al. "Improving the Performance of ZnO Nanorod Piezoelectric Nanogenerators by Tuning the PEDOT: PSS as an Intermediate Layer." Journal of Physics: Conference Series 2974, no. 1 (2025): 012021. https://doi.org/10.1088/1742-6596/2974/1/012021.

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Abstract The coating design of a piezoelectric nanogenerator (PENG) was optimised to enhance the performance of ZnO nanorod-based PENGs by fine-tuning the PEDOT: PSS intermediate layer. ZnO nanorods were synthesised using the hydrothermal method at 90°C for 5 hours. The PEDOT: PSS layer was deposited via spin coating at rotation speeds (2000-5000 rpm). Furthermore, PDMS and Cu material layers were deposited using spin coating and magnetron sputtering, respectively, ensuring optimal layer characteristics for improved energy harvesting efficiency. The PENGs were fabricated with a material struct

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30

Singh, Shaivalini, Yogesh Kumar, Hemant Kumar, et al. "A study of hydrothermally grown ZnO nanorod-based metal-semiconductor-metal UV detectors on glass substrates." Nanomaterials and Nanotechnology 7 (January 1, 2017): 184798041770214. http://dx.doi.org/10.1177/1847980417702144.

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This study reports hydrothermally grown zinc oxide nanorod-based metal-semiconductor-metal ultraviolet detectors with palladium metal as the electrodes. The zinc oxide nanorods were deposited on glass substrates in two steps, seed layer deposition and growth of nanorods. The structural and optical properties of nanorods were examined using scanning electron microscopy and ultraviolet–vis spectroscopy, respectively. The scanning electron microscopy image showed that the growth of nanorods was uniform, and the ultraviolet–vis results indicate that the bandgap of zinc oxide nanorods was 3.23 eV.

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Kunya, Salisu I., Yunusa Abdu, Mohd Kamarulzaki Mustafa, and Mohd Khairul Ahmad. "ZnO Nanorods Growth and the Parametric Survey of Factors Influencing the Morphologies for DSSC Application-Review." Journal of Chemistry Studies 1, no. 2 (2022): 17–26. http://dx.doi.org/10.32996/jcs.2022.1.2.3.

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Zinc-oxide (ZnO) nanostructures, such as nanorods, are generally viewed as leading studies of keen interest due to their significant application potential in many applied areas, primarily for the improvement of photovoltaic solar cells. The morphologies of nanorods are linked to the seed layer (SL) optimization. As a result, forming a high-quality ZnO thin film prior to the growth of nanorods is critical. The processing parameters used during the synthesis technique can influence the quality of the synthesized samples. This review article focuses on the outcomes of the process variables respon

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Anaam, Sawsan Abdullah Abduljabbar, and Mohd Zainizan Sahdan. "Precursor-concentration-controlled Morphology of TiO2 Nanorod/Nanoflower Films for Enhanced Photoelectrochemical Water Splitting and Investigating Their Growth Mechanism." Bulletin of Chemical Reaction Engineering & Catalysis 19, no. 1 (2023): 15–31. http://dx.doi.org/10.9767/bcrec.20061.

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Titanium dioxide (TiO2) has been considered as one of the most promising photocatalysts for photoelectrochemical (PEC) water splitting. Therefore, numerous efforts have been devoted to improving its PEC water splitting performance. In this study, TiO2 nanorod/nanoflower (NRF) films with controlled morphology were synthesized on fluorine-doped tin oxide (FTO) glass substrates by following a facile one-step hydrothermal method. The TiO2 NRF films were characterized by X-ray diffraction (XRD), Raman spectroscopy, field emission scanning electron microscopy (FE-SEM), atomic force microscopy (AFM),

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Ginting, Riski Titian, Chi Chin Yap, Muhammad Yahaya, and Muhamad Mat Salleh. "Effect of Eosin-Y Coating Temperature on the Performance of Inverted Bulk Heterojunction Organic Solar Cells." Advanced Materials Research 501 (April 2012): 199–203. http://dx.doi.org/10.4028/www.scientific.net/amr.501.199.

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Inverted type bulk heterojunction organic solar cell based on ZnO nanorod arrays have been used to overcome the degradation problem of conjugated polymer and low work function electrode. ZnO nanorods and Eosin-Y are widely used to increase the charge mobility and light absorbance, respectively. The effects of Eosin-Y coating temperature (30 – 50 oC) on the performance of organic solar cells based on a blend of poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEHPPV) as donor and (6,6)-phenyl-C61 butyric acid methyl ester (PC61BM) as acceptor with a structure of fluorine-doped tin oxi

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Yin, Song, Yiqing Chen, Yong Su, et al. "Controllable Synthesis and Photoluminescence Properties of ZnO Nanorod and Nanopin Arrays." Journal of Nanoscience and Nanotechnology 8, no. 2 (2008): 993–96. http://dx.doi.org/10.1166/jnn.2008.18152.

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Well-aligned ZnO nanorods and nanopins are synthesized on a silicon substrate using a one-step simple thermal evaporation of a mixture of zinc and zinc acetate powder under controlled conditions. A self-assembled ZnO buffer layer was first obtained on the Si substrate. The structure and morphology of the as-synthesized ZnO nanorod and nanopin arrays are characterized using X-ray diffraction, and scanning and transmission electron microscopies, energy-dispersive X-ray spectroscopy, and photoluminescence spectroscopy. The influence of the background atmosphere on the two ZnO nanostructures has b

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Zheng, Ming, Qiu-Xiang Zhu, Xue-Yan Li, Xiao-Min Li, and Ren-Kui Zheng. "Magnetic and electrical properties of three-dimensional (La,Pr,Ca)MnO3 nanofilm/ZnO nanorod p–n junctions." RSC Adv. 4, no. 62 (2014): 32622–27. http://dx.doi.org/10.1039/c4ra06302c.

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Excellent room temperature rectification performance and enhanced ferromagnetic phase transition temperature was achieved for the La<sub>0.5</sub>Pr<sub>0.17</sub>Ca<sub>0.33</sub>MnO<sub>3</sub> nanofilm/ZnO nanorod p–n junctions prepared by depositing the La<sub>0.5</sub>Pr<sub>0.17</sub>Ca<sub>0.33</sub>MnO<sub>3</sub> shell layer on the ZnO nanorods.

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Limnonthakul, P., C. Chananonnawathorn, K. Aiempanakit, J. Kaewkhao, P. Eiamchai, and M. Horprathum. "Effects of Precursor Concentration on Hexagonal Structures of ZnO Nanorods Grown by Aqueous Solution Method." Advanced Materials Research 770 (September 2013): 120–23. http://dx.doi.org/10.4028/www.scientific.net/amr.770.120.

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The ZnO nanorods were fabricated on top of the seeded gold layer by the aqueous solution method with the solution of zinc nitrate and hexamethylenetetramine (HTMA) at 90°C for 24 hours. The variety of the ZnO nanorods were prepared and investigated based on the precursor concentrations, in a range of 1 to 40 mM. The physical morphologies and crystal structures were characterized by field-emission scanning electron microscopy (FE-SEM) and X-ray diffractometry (XRD), respectively. The results showed that, with the small precursor concentrations, the lateral growth of the nanorods was highly sign

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Diantoro, Markus, Syahri Yanor, Thathit Suprayogi, et al. "Annealing Temperature Effect of ZnO Seed Layer on Integrated Photosupercapacitor Performance." Key Engineering Materials 851 (July 2020): 16–24. http://dx.doi.org/10.4028/www.scientific.net/kem.851.16.

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Photosupercapacitor is an integrated device for harvesting and storing solar energy into electrical energy. Photosupercapacitor is constructed by solar cell and supercapacitor. In the solar cell with DSSC type, one of the influential variables is photoanode performance. The photoanode with ZnO layer plays a role in light absorption, charge mobility, and electrical properties, which are influenced by crystal structure and nanoscale morphology. One of nanoscale morphology of ZnO that widely used is nanorods. This work is focussed to investigate the effect of annealing temperature on seed layer Z

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Zhang, Shiying, Lei Zhang, Yueyao Zhong, Guodong Wang, and Qingjun Xu. "Fabrication and repair of GaN nanorods by plasma etching with self-assembled nickel nanomasks." European Physical Journal Applied Physics 93, no. 3 (2021): 30405. http://dx.doi.org/10.1051/epjap/2021210002.

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High crystal quality GaN nanorod arrays were fabricated by inductively coupled plasma (ICP) etching using self-organized nickel (Ni) nano-islands mask on GaN film and subsequent repaired process including annealing in ammonia and KOH etching. The Ni nano-islands have been formed by rapid thermal annealing, whose density, shape, and dimensions were regulated by annealing temperature and Ni layer thickness. The structural and optical properties of the nanorods obtained from GaN epitaxial layers were comparatively studied by high-resolution X-ray diffraction (HRXRD), Raman spectroscopy and photol

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Liang, Yuan-Chang, and Tsun-Hsuan Li. "Sputtering-Assisted Synthesis of Copper Oxide–Titanium Oxide Nanorods and Their Photoactive Performances." Nanomaterials 12, no. 15 (2022): 2634. http://dx.doi.org/10.3390/nano12152634.

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A TiO2 nanorod template was successfully decorated with a copper oxide layer with various crystallographic phases using sputtering and postannealing procedures. The crystallographic phase of the layer attached to the TiO2 was adjusted from a single Cu2O phase or dual Cu2O–CuO phase to a single CuO phase by changing the postannealing temperature from 200 °C to 400 °C. The decoration of the TiO2 (TC) with a copper oxide layer improved the light absorption and photoinduced charge separation abilities. These factors resulted in the composite nanorods demonstrating enhanced photoactivity compared t

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Vasudevan, Arun, Soyoun Jung, and Taeksoo Ji. "Synthesis and Characterization of Hydrolysis Grown Zinc Oxide Nanorods." ISRN Nanotechnology 2011 (September 12, 2011): 1–7. http://dx.doi.org/10.5402/2011/983181.

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We present ZnO nanorods grown by a low-cost hydrolysis method with a rod diameter on the order of 30–40 nm and spacing on the order of 20–40 nm that find their applications in the field of solar cells and UV photodetectors with high efficiency and sensitivity. The effect of different process parameters on nanorod growth, such as the seed layer orientation in the growth medium, and the concentration of the growth medium were studied while characterizing the structure of the grown nanorods using XRD, EDAX, and SEM.

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Chen, Lung-Chien, Ching-Ho Tien, Liu Xuguang, and Xu Bingshe. "Zigzag and Helical AlN Layer Prepared by Glancing Angle Deposition and Its Application as a Buffer Layer in a GaN-Based Light-Emitting Diode." Journal of Nanomaterials 2012 (2012): 1–6. http://dx.doi.org/10.1155/2012/409123.

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This study investigates an aluminum nitride (AlN) nanorod structure sputtered by glancing angle deposition (GLAD) and its application as a buffer layer for GaN-based light-emitting diodes (LEDs) that are fabricated on sapphire substrates. The ray tracing method is adopted with a three-dimensional model in TracePro software. Simulation results indicate that the zigzag AlN nanorod structure is an optimal buffer layer in a GaN-based LED. Furthermore, the light output power of a GaN-based LED with a zigzag AlN nanorod structure improves to as much as 28.6% at a forward current of 20 mA over that o

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KUSHWAHA, AJAY, and M. ASLAM. "CONTROLLED GROWTH OF HIGHLY ORIENTED ZnO NANOROD ARRAY ON AMORPHOUS GLASS SUBSTRATE AND THEIR OPTICAL AND ELECTRICAL PROPERTIES." International Journal of Nanoscience 10, no. 04n05 (2011): 635–39. http://dx.doi.org/10.1142/s0219581x11009155.

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Highly oriented zinc oxide nanorod array is fabricated on ZnO quantum dots functionalized amorphous glass substrate. Simplified aqueous based beaker-chemistry is utilized for a controlled growth of vertically oriented nanorod arrays. XRD studies exhibit (002) orientation of the nanorod arrays which are achieved by sheer control of parameters such as ZnO seed layer morphology, molarity, reaction time and deposition temperature. A lower concentration of precursor leads to the sparse nanorods alignment while a higher concentration renders a (002) oriented of nanorod array film. We find that the a

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Li, Jianjun, Weiwei Zhang, Yujun Song, Weiting Yin, and Tao Zhang. "Template Transfer Nanoimprint for Uniform Nanopores and Nanopoles." Journal of Nanomaterials 2016 (2016): 1–7. http://dx.doi.org/10.1155/2016/9354364.

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A new methodology is developed for the fabrication of nanostructures on substrate based on anodized Al2O3(AAO) porous template transfer process. It includes (1) forming amorphous alloy, negative UV-resist resin (i.e., SU-8), or PMMA (polymethylmethacrylate) plate nanorod arrays by hot-press molding amorphous alloy, negative UV-resist resin (i.e., SU-8), or PMMA plate into the anodized Al2O3porous substrates; (2) removing AAO templates by chemical etching process after suitable posttreatment (annealing and/or irradiation) to improve the mechanical strength of the nanorod arrays; (3) reforming n

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Ren, Fang, Yue Yin, Yunyu Wang, et al. "Direct Growth of AlGaN Nanorod LEDs on Graphene-Covered Si." Materials 11, no. 12 (2018): 2372. http://dx.doi.org/10.3390/ma11122372.

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High density of defects and stress owing to the lattice and thermal mismatch between nitride materials and heterogeneous substrates have always been important problems and limit the development of nitride materials. In this paper, AlGaN light-emitting diodes (LEDs) were grown directly on a single-layer graphene-covered Si (111) substrate by metal organic chemical vapor deposition (MOCVD) without a metal catalyst. The nanorods was nucleated by AlGaN nucleation islands with a 35% Al composition, and included n-AlGaN, 6 period of AlGaN multiple quantum wells (MQWs), and p-AlGaN. Scanning electron

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Mai Thi Ngoc Anh, Trinh Duc Thien, Nguyen Thi Minh Hong, and Nguyen Dinh Lam. "Fabrication of ZnO nanorods decorated Au nanoparticles by hydrothermal and magnetron sputter techniques." Journal of Military Science and Technology, no. 83 (November 18, 2022): 40–47. http://dx.doi.org/10.54939/1859-1043.j.mst.83.2022.40-47.

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In this study, ZnO nanorods decorated with gold (Au) nanoparticles with the desired size parameters were fabricated using a simple, low-cost, and highly efficient method. The ZnO nanorod structure was fabricated using a hydrothermal method on a ZnO seed layer with hydrothermal solution concentrations varying from 20 mM to 90 mM. Au nanoparticles were coated on the ZnO nanorod structure by magnetron sputtering with a sputtering time from the 40s to 70 s. The characteristics of the fabricated samples were investigated through SEM images and optical absorption spectroscopy. The results show that

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Lee, H. J., S. W. Lee, H. Goto, et al. "Free standing GaN layers with GaN nanorod buffer layer." physica status solidi (c) 4, no. 7 (2007): 2268–71. http://dx.doi.org/10.1002/pssc.200674858.

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Gowthaman, Periyasamy, Manickam Saroja, Muthusamy Venkatachalam, Jagadeesh Deenathayalan, N. Muthukumarasamy, and T. S. Senthil. "Influence of Growth and Annealing Temperatures on the Properties of ZnO Nanorods Synthesized by Dip Coating Method." Advanced Materials Research 678 (March 2013): 193–97. http://dx.doi.org/10.4028/www.scientific.net/amr.678.193.

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A novel and simple approach is reported to fabricate ZnO nanorods. Zinc acetate dihydrate, ethanol and de-ionized water were used to prepare seed layer. Zinc nitrate and hexamethylenetetramine solution were used for growth of ZnO nanorods. The ZnO nanorods were grown at two different temperatures of 90°C and 120°C and annealed at three different temperatures of 300°C, 400°C and 500°C in air atmosphere. Nanorod growth temperature and annealing temperature are varied and the corresponding changes in structural, morphological and optical properties were reported. The structure, orientation, surfa

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Anwar, Farhana, Rafee Mahbub, Sakin Sarwar Satter, and Saeed Mahmud Ullah. "Effect of Different HTM Layers and Electrical Parameters on ZnO Nanorod-Based Lead-Free Perovskite Solar Cell for High-Efficiency Performance." International Journal of Photoenergy 2017 (2017): 1–9. http://dx.doi.org/10.1155/2017/9846310.

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Simulation has been done using SCAPS-1D to examine the efficiency of CH3NH3SnI3-based solar cells including various HTM layers such as spiro-OMeTAD, Cu2O, and CuSCN. ZnO nanorod array has been considered as an ETM layer. Device parameters such as thickness of the CH3NH3SnI3 layer, defect density of interfaces, density of states, and metal work function were studied. For optimum parameters of all three structures, efficiency of 20.21%, 20.23%, and 18.34% has been achieved for spiro-OMeTAD, Cu2O, and CuSCN, respectively. From the simulations, an alternative lead-free perovskite solar cell is int

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Mageswari, S., and Balan Palanivel. "Influence of Al, Ta Doped ZnO Seed Layer on the Structure, Morphology and Optical Properties of ZnO Nanorods." Current Smart Materials 4, no. 1 (2019): 45–58. http://dx.doi.org/10.2174/2405465804666190326150628.

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Background: Zinc oxide (ZnO) is one of the most attractive II-VI semiconductor oxide material, because of its direct wide band gap (3.37 eV) and large binding energy (60 meV). Zinc oxide (ZnO) is a promising semiconductor due to its optimised optical properties. Among semiconductor nanostructures, the vertically aligned one-dimensional ZnO nanorods are very important for nano device application. Methods: Vertically aligned ZnO nanorod arrays were grown on ZnO, aluminum doped ZnO (ZnO:Al), tantalum doped ZnO (ZnO:Ta) and aluminum and tantalum co-doped ZnO (ZnO:Al,Ta) seed layer by hydrothermal

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Hamdi, Abderrahmane, Chin Sing Lim, Mohamed Aymen Ben Achour, et al. "Effects of Reaction Parameters on the Geometry and Crystallinity of Hydrothermally Synthesized ZnO Nanorods for Bio-Fouling Applications." Coatings 13, no. 1 (2023): 200. http://dx.doi.org/10.3390/coatings13010200.

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In this present work, we have successfully synthesized vertical aligned ZnO nanorod arrays (ZnO NRs) on conductive stainless-steel substrate. These ZnO NRs were obtained by using a low temperature, low cost, and eco-friendly hydrothermal approach. The effect of the sol-gel deposited ZnO seed layer on the vertical alignment ZnO NRs has been thoroughly studied. Characterizations of the seed layer and the as-obtained nanorods were investigated using scanning electron microscopy (SEM), X-ray diffraction (XRD), atomic force microscopy (AFM), high-resolution transmission electron microscopy (HR-TEM)

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