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Journal articles on the topic 'Mg-Dopant'

Author: Grafiati

Published: 8 June 2024

Last updated: 31 July 2025

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1

Yamashita, Yoshiyuki, Jingmin Tang, Yusuke Hashimote, and Tomohiro Matsushita. "Atomic Structures and Chemical states of active and inactive dopants in GaN." ECS Transactions 112, no. 2 (2023): 67–75. http://dx.doi.org/10.1149/11202.0067ecst.

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We investigated atomic structures and chemical states of active and inactive dopant sites for Mg- and Si- doped in GaN using photoelectron holography and X-ray absorption near edge structure. In the case of Mg-doped GaN, we found that a Mg atom substituting a Ga atom (MgGa) is an active dopant site in GaN whereas MgGa with two H atoms is an inactive dopant site in GaN. We found that a Si atom substituting a Ga atom is an active dopant site in Si-doped GaN whereas Si3N4 is an inactive dopant site in GaN.

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2

Siladie, Alexandra-Madalina, Lynda Amichi, Nicolas Mollard, et al. "Dopant radial inhomogeneity in Mg-doped GaN nanowires." Nanotechnology 29, no. 25 (2018): 255706. http://dx.doi.org/10.1088/1361-6528/aabbd6.

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3

Huang, Xiaopeng, Feng Liang, Yuanchao Du, Keyu Zhang, Yaochun Yao, and Yongnian Dai. "Optimization of the Process Parameters for the Synthesis of LiFe1−x−yMgxTiyPO4/C Cathode Material Using Response Surface Methodology." Nano 11, no. 11 (2016): 1650122. http://dx.doi.org/10.1142/s1793292016501228.

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A systematic approach was used to develop the empirical model for optimizing the preparation process parameters for the synthesis of LiFe[Formula: see text]MgxTiyPO4/C composite cathode material. For optimizing the production parameters, response surface methodology (RSM) was applied to develop a linear regression model and maximize the discharge capacity. Analysis of the variance (ANOVA) showed that the three variables (Mg-dopant, Ti-dopant and sintering temperature) and the interactions among them were significant factors. Response surfaces formed by RSM illustrated that the doping of Mg and

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4

Schmidt, Th, M. Siebert, J. I. Flege, et al. "Mg and Si dopant incorporation and segregation in GaN." physica status solidi (b) 248, no. 8 (2011): 1810–21. http://dx.doi.org/10.1002/pssb.201046531.

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5

Winda Rahmalia, Intan Syahbanu, Nurlina, Ayu Widya Sari, and Septiani. "Synthesis of Mg-doped TiO2 Using a Hydrothermal Method as Photoanode on Bixin-Sensitized Solar Cell." Jurnal Riset Kimia 14, no. 2 (2023): 198–208. http://dx.doi.org/10.25077/jrk.v14i2.622.

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Titanium dioxide (TiO2) with magnesium (Mg) doping for dye-sensitized solar cell (DSSC) photoanode application has been synthesized. DSSC components used in this study were photosensitizer (bixin), electrolyte (), cathode (platinum), and photoanode (Mg-TiO2). This research aims to determine the characteristics of Mg-doped TiO2 photoanode with variations in dopant concentration based on the results of XRD and DR/UV-Vis analysis, as well as to determine the maximum efficiency conversion energy of DSSC using Mg-doped TiO2 and undoped TiO2 as photoanodes. The synthesis of TiO2 and Mg-TiO2 was carr

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6

Kushwaha, Amanendra K., Manoranjan Misra, and Pradeep L. Menezes. "Effect of Magnesium Dopant on the Grain Boundary Stability of Nanocrystalline Aluminum Powders during Cryomilling." Crystals 13, no. 3 (2023): 541. http://dx.doi.org/10.3390/cryst13030541.

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In this investigation, pure aluminum (Al) powders were cryomilled with and without magnesium dopants to study (a) the effect of cryomilling time on the crystallite size and (b) the effect of magnesium dopant on Al to achieve grain boundary stability. The cryomilling process was carried out using liquid nitrogen for different durations. The characterization of the cryomilled powders was carried out using scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray diffraction (XRD) to understand the particle morphology, crystallite size, and elemental composition. The r

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7

Ahmed, Duha S., Noor Q. Ali, and Ali A. Taha. "The Variation Effect of Mg-doped NPs Prepared by Sol-Gel Method on its Structural Properties and Biological Activities." Journal of Physics: Conference Series 2114, no. 1 (2021): 012004. http://dx.doi.org/10.1088/1742-6596/2114/1/012004.

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Abstract In this paper, we reported the synthesis of NiO NPs and Mg doped-NiO NPs using the facile sol-gel method. Besides, the influence of the variation of Mg dopant on the structural, morphological and optical properties of the prepared Mg-NiO NPs was studied. The synthesized Mg-NiO NPs nanoparticles were characterized by X-Ray Diffraction Analysis (XRD), Energy Dispersive X-ray Spectroscopy (EDS), Fourier-Transform Infrared Spectroscopy (FTIR), Field-Emission Scanning Electron Microscopy (FE-SEM), and UV-Vis spectrophotometer. The X-ray diffraction confirmed the formation of the cubic stru

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8

Thonglem, Sutatip, Somnuk Sirisoonthorn, Kamonpan Pengpat, et al. "Properties of Mg Doped ZnO Films Prepared by Ultrasonic Spray Pyrolysis." Applied Mechanics and Materials 804 (October 2015): 88–92. http://dx.doi.org/10.4028/www.scientific.net/amm.804.88.

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This work is focused on the preparation of Mg doped ZnO films by ultrasonic spray pyrolysis and investigated the physical, optical and electrical properties of the films. These films were prepared from 0.02 M of Zn (CH3OO)2.2H2O and MgCl2 was used for doping. The atomic percentage ratio of Mg/Zn was varied from 0 to 9 at.%. The crystalline phase of all films was identified as ZnO polycrystalline structure with preferred orientation along the (002) plane. While, the grain shape of ZnO film was irregular shape, this shape changed to spherical shape with doped Mg concentration and changed again t

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9

İskenderoğlu, Demet, and Harun Güney. "Effect of Mg dopant on SnO2 thin films grown by spray pyrolysis technique." Modern Physics Letters B 33, no. 04 (2019): 1950030. http://dx.doi.org/10.1142/s0217984919500301.

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The undoped and magnesium (Mg)-doped Tin (IV) oxide (SnO2) thin films were grown on glass substrate by spray pyrolysis technique. In order to observe the effect on the optical, structural, morphological, and hydrogen (H2) gas answer properties of SnO2 by Mg doping, X-ray diffractometer (XRD), ultraviolet–visible (UV) spectrometer, scanning electron microscope (SEM) and hydrogen (H2) gas, measurements were taken. The absorption measurements of undoped and Mg-doped SnO2 thin films demonstrated that band gaps varied with the changing Mg dopant ratio and this variation may be from Burstein–Moss (B

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10

Li, Jinchai, and Junyong Kang. "Band engineering in Al0.5Ga0.5N∕GaN superlattice by modulating Mg dopant." Applied Physics Letters 91, no. 15 (2007): 152106. http://dx.doi.org/10.1063/1.2798589.

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11

Grillot, P. N., S. A. Stockman, J. W. Huang, and Y. L. Chang. "Dopant interactions and Mg segregation in (AlxGa1−x)0.5In0.5P heterostructures." Physica B: Condensed Matter 308-310 (December 2001): 888–90. http://dx.doi.org/10.1016/s0921-4526(01)00950-4.

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12

Jain, P., J. Lang, N. Y. Skryabina, et al. "MgH2 as dopant for improved activation of commercial Mg ingot." Journal of Alloys and Compounds 575 (October 2013): 364–69. http://dx.doi.org/10.1016/j.jallcom.2013.05.099.

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13

Goorsky, Mark S., Michael Evan Liao, Kenny Huynh, et al. "(Invited) Understanding Mg-Related Defects for Vertical GaN p-n Junction Structures Via p-Type Ion Implantation." ECS Meeting Abstracts MA2023-02, no. 35 (2023): 1691. http://dx.doi.org/10.1149/ma2023-02351691mtgabs.

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Vertical GaN power devices have emerged to become promising candidates for next-generation high power applications due to superior material properties such as high breakdown voltage, low on-resistance, and high mobility compared to devices based on Si and SiC. GaN-based p-n junction switching devices enable higher voltage power with significantly higher efficiencies with added advantages of systems with reduced size and weight. A technological limitation of GaN, however, has been the inability to achieve high p-type doping in a planar, vertical device. Here, we will focus on recent development

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14

Wu, Jing, Gui Gui Xu, Ying Bin Lin, and Zhi Gao Huang. "The Role of Na and Mg Doping on the Electronic Conductivity of LiFePO₄ : First-Principles Investigations." Advanced Materials Research 629 (December 2012): 64–69. http://dx.doi.org/10.4028/www.scientific.net/amr.629.64.

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The effects of Na and Mg doped Li site for Li1-xMxFePO4 have been studied using first-principles within GGA+U. Elastic band method has been used to calculate the activation energy for Li diffusion. The calculated results mean that, the band gaps of the Na and Mg doped Li1-xMxFePO4 are both narrow than that of the un-doped. Especially Mg dopant gives rise to much narrow gap, which is attributed to the appearance of impurity level in the forbidden band of un-doped LiFePO4. The calculated activation energies for LiFePO4, Li0.875Na0.125Subscript textFePO4, and Li0.875Mg0.125FePO4 are 0.33eV, 0.31

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15

Qiu, Xinjia, Yingda Chen, Enze Han, Zesheng Lv, Zhiyuan Song, and Hao Jiang. "High doping efficiency in p-type Al-rich AlGaN by modifying the Mg doping planes." Materials Advances 1, no. 1 (2020): 77–85. http://dx.doi.org/10.1039/d0ma00026d.

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16

Pathmanathan, Kowthaman, Poobalasuntharam Iyngaran, Poobalasingam Abiman, and Navaratnarajah Kuganathan. "Defect Engineering and Dopant Properties of MgSiO3." Eng 6, no. 3 (2025): 51. https://doi.org/10.3390/eng6030051.

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Magnesium silicate (MgSiO3) is widely utilized in glass manufacturing, with its performance influenced by structural modifications. In this study, we employ classical and density functional theory (DFT) simulations to investigate the defect and dopant characteristics of MgSiO3. Our results indicate that a small amount of Mg-Si anti-site defects can exist in the material. Additionally, MgO Schottky defects are viable, requiring only slightly more energy to form than anti-site defects. Regarding the solubility of alkaline earth dopant elements, Ca preferentially incorporates into the Mg site wit

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17

Chaika, Mykhailo, Giulia Mancardi, Robert Tomala, Wiesław Stek, and Oleh Vovk. "Effects of divalent dopants on the microstructure and conversion efficiency of Cr4+ ions in Cr,Me:YAG (Me - Ca, Mg, Ca/Mg) transparent ceramics." Processing and Application of Ceramics 14, no. 1 (2020): 83–89. http://dx.doi.org/10.2298/pac2001083c.

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The efficiency of Cr4+:YAG is directly proportional to the transparency and concentration of Cr4+ which can be tuned by changing the divalent dopant. The aim of this study was to investigate the influence of different kinds of divalent dopants on the properties of Cr,Me:YAG (Me = Ca, Mg or Ca/Mg) ceramics made by solidstate sintering in vacuum. Pure YAG phases with an in-line transmittance of 80% at 1064 nm were prepared. It was revealed that the Cr4+ concentration is directly proportional to the concentration of divalent dopants and it does not depend on the type of dopant. Our experiment pro

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18

Sun, Xiaoying, Xinyu Li, Yue Liu, Zhan Yu, Bo Li, and Zhen Zhao. "The C-H Bond Activation Triggered by Subsurface Mo Dopant on MgO Catalyst in Oxidative Coupling of Methane." Catalysts 12, no. 10 (2022): 1083. http://dx.doi.org/10.3390/catal12101083.

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In this work, density functional theory calculations are performed to explore the unique role of Mo dopant on MgO in oxidative coupling of methane. It is revealed that subsurface Mo dopant significantly enhanced the adsorption and activation of oxygen molecules. The combination of adsorbed oxygen and surface Mg exhibited a balanced activity for C-H bond activation and release of methyl radical which paves the way to activate methane with a promising yield.

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19

Weber, W. J., C. W. Griffin, and J. L. Bates. "Electrical and thermal transport properties of the Y1 − x Mx CrO3 system." Journal of Materials Research 1, no. 5 (1986): 675–84. http://dx.doi.org/10.1557/jmr.1986.0675.

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The effects of substituting divalent metal ions (Mg, Ca, Sr, Ba) for Y in YCrO3 were investigated by electrical conductivity, Seebeck coefficient, and thermal conductivity measurements. The electrical conductivity results were consistent with the hopping-type conduction of a temperature-independent concentration of small polarons, with measured activation energies of 0.18-0.26 eV. The Seebeck coefficient increased nearly linearly with temperature and indicated p-type conductivity. Both electrical conductivity and Seebeck coefficient results show a strong dependence on dopant size (ionic radius

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20

Salina, M., R. Ahmad, A. B. Suriani, and M. Rusop. "Bandgap Alteration of Transparent Zinc Oxide Thin Film with Mg Dopant." Transactions on Electrical and Electronic Materials 13, no. 2 (2012): 64–68. http://dx.doi.org/10.4313/teem.2012.13.2.64.

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21

Licata, Olivia G., Scott Broderick, Emma Rocco, Fatemeh Shahedipour-Sandvik, and Baishakhi Mazumder. "Dopant-defect interactions in Mg-doped GaN via atom probe tomography." Applied Physics Letters 119, no. 3 (2021): 032102. http://dx.doi.org/10.1063/5.0061153.

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22

Laleyan, David Arto, Songrui Zhao, Steffi Y. Woo, et al. "AlN/h-BN Heterostructures for Mg Dopant-Free Deep Ultraviolet Photonics." Nano Letters 17, no. 6 (2017): 3738–43. http://dx.doi.org/10.1021/acs.nanolett.7b01068.

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23

Sinha, M. K., D. Basu, S. Chatterjee, and M. K. Basu. "Effect of dopant concentration on the dilation behaviour of Mg-PSZ." Journal of Materials Science Letters 10, no. 22 (1991): 1352–55. http://dx.doi.org/10.1007/bf00722659.

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24

Saragih, Albert Daniel, and Dong-Hau Kuo. "Investigation of Mg dopant in Cu2SnSe3 thin films for photovoltaic applications." Journal of Alloys and Compounds 683 (October 2016): 542–46. http://dx.doi.org/10.1016/j.jallcom.2016.05.085.

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25

Paszkiewicz, B., R. Paszkiewicz, A. Szyszka, et al. "Study of the activation process of Mg dopant in GaN:Mg layers." physica status solidi (c) 3, no. 3 (2006): 579–84. http://dx.doi.org/10.1002/pssc.200564121.

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26

Thonglem, Sutatip, Chavalit Suksri, Kamonpan Pengpat, et al. "Tuning the Band Gap of ZnO Thin Films by Mg Doping." Key Engineering Materials 690 (May 2016): 131–36. http://dx.doi.org/10.4028/www.scientific.net/kem.690.131.

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Structural, morphological, optical and electrical properties of magnesium (Mg) doped zinc oxide (ZnO) films prepared by ultrasonic spray pyrolysis technique on microscope glass substrate, have been studied in terms of Mg doping content. The precursors solutions of Mg doped ZnO films were prepared from zinc acetate dihydrate (Zn (CH3OO)2⋅2H2O) and magnesium acetate tetrahydrate (CH3COO)2Mg⋅4H2O) acted as dopant. The compositions of these solutions were fixed at 0.02 M of Zn (CH3OO)2.2H2O and the atomic percentage ratio of Mg/Zn was varied from 0 to 20 atomic %. The XRD pattern of all films show

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27

Adnan, Russul M., Malak Mezher, Alaa M. Abdallah, Ramadan Awad, and Mahmoud I. Khalil. "Synthesis, Characterization, and Antibacterial Activity of Mg-Doped CuO Nanoparticles." Molecules 28, no. 1 (2022): 103. http://dx.doi.org/10.3390/molecules28010103.

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This study aims to investigate the effect of magnesium (Mg) doping on the characteristics and antibacterial properties of copper oxide (CuO) nanoparticles (NPs). The Mg-doped CuO NPs were fabricated by the co-precipitation method. NPs were characterized by X-ray Powder Diffraction (XRD), Transmission Electron Microscope (TEM), Energy Dispersive X-ray (EDX) analysis, Fourier Transform Infrared Spectroscopy (FTIR), and Photoluminescence (PL). Broth microdilution, agar-well diffusion, and time-kill assays were employed to assess the antibacterial activity of the NPs. XRD revealed the monoclinic s

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28

Sriyanti, Sriyanti. "Encapsulation of Alkaline Phosphatase in Mesoporous Methyl-Silica Hybrid by Sol-Gel Process." Jurnal Kimia Sains dan Aplikasi 20, no. 3 (2017): 110–13. http://dx.doi.org/10.14710/jksa.20.3.110-113.

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In recent years, the sol-gel technique has attracted increasing interest as a unique approach to immobilize biomolecules for bioanalitical applications as well as biochemical and biophysical studies. In this research, encapsulation of Alkaline Phosphatase (ALP) enzyme in mesoporous methyl-silica hybrid by sol-gel process has been carried out. Mesoporous methyl-silica hybrid has been synthesis by using tetraethylorthosilicate (TEOS) and methyltriethoxysilane (MTES) as precursor and poly(ethylene) glycol (PEG) as a polymer dopant. The preparation of methyl-silica hybrid was carried out at variou

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29

Mizuno, Masataka, Hideki Araki, Yasuharu Shirai, Fumiyasu Oba, and Isao Tanaka. "Identification of Mg Vacancy in MgO by Positron Lifetime Measurements and First-Principles Calculations." Defect and Diffusion Forum 242-244 (September 2005): 1–8. http://dx.doi.org/10.4028/www.scientific.net/ddf.242-244.1.

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The formation of Mg vacancy induced by ultra-dilute trivalent impurities in MgO is investigated by a combination of positron lifetime measurements and first-principles calculations. The undoped MgO yields the shortest positron lifetime of 140 ps that is shorter than that of a single crystal sample. The positron lifetime of the doped samples increases with the increase of the Al dopant concentration and is saturated at around 180 ps. This result clearly indicates that the formation of Mg vacancy is induced by Al dopant. The concentration of the other trivalent impurities can be evaluated using

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30

S., Rahul, Syju Thomas, Devadas K.M., et al. "Tackling the agglomeration of Mg 2 Si dopant in MgB 2 superconductor using cast Mg–Si alloy." Materials Research Bulletin 93 (September 2017): 296–302. http://dx.doi.org/10.1016/j.materresbull.2017.05.022.

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31

Mohar, Rahmat Setiawan, Iwan Sugihartono, Vivi Fauzia, and Akrajas Ali Umar. "Dependence of optical properties of Mg-doped ZnO nanorods on Al dopant." Surfaces and Interfaces 19 (June 2020): 100518. http://dx.doi.org/10.1016/j.surfin.2020.100518.

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32

Meijvogel, K., A. J. J. Bos, P. Bilski, and P. Olko. "Thermoluminescence emission characteristics of LiF(Mg,Cu,P) with different dopant concentrations." Radiation Measurements 24, no. 4 (1995): 411–16. http://dx.doi.org/10.1016/1350-4487(94)00113-f.

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33

Yan, M. F., H. C. Ling, and W. W. Rhodes. "Preparation and properties of PbO–MgO–Nb2O5 ceramics near the Pb(Mg⅓Nb⅔)O3 composition." Journal of Materials Research 4, no. 4 (1989): 930–44. http://dx.doi.org/10.1557/jmr.1989.0930.

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We prepared and characterized PbO–MgO–Nb2O5 ceramics near the Pb(Mg⅓Nb⅔)O3 stoichiometric composition. We examined microstructures, sintering behavior, and phase compositions in this system and prepared several new compositions, which have a single phase perovskite structure and a high dielectric constant (28000), by low sintering temperature (950–1020 °C). These compositions have a high electrical resistivity (1013 ohm-cm), which is about 1000 times higher than those of Pb(Fe½Nb½)O3 and Pb(Fe⅔W⅓)O3 based ceramics. The new compositions can be readily prepared into a single phase perovskite w

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34

Yu, Xiao Cai, Peng Fei Zhu, Kui Sheng Song, Dong Dong Hu, and Qian Du. "Study on the Photocatalytic Degradation of Ammonia Nitrogen in Aquaculture Wastewater by Fe³⁺-Doped Nano-TiO₂ under UV Irradiation." Advanced Materials Research 476-478 (February 2012): 2001–4. http://dx.doi.org/10.4028/www.scientific.net/amr.476-478.2001.

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The Fe3+-doped nano-TiO2 catalyst with various amounts of dopant Fe3+ irons was prepared by a sol-gel method. The products were characterized by XRD and SEM. The photocatalytic degradation of ammonia nitrogen in aquaculture wastewater was investigated by using Fe3+-doped nano-TiO2 under UV irradiation. In the experiment, the effect of Fe3+/TiO2 dosage, the ratio of dopant Fe3+, ammonia-N initial concentration, pH value, H2O2 volume concentration, and reaction time, respectively, on the removal of ammonia-N was investigated. The experimental results can be stated as follows: when the ratio of d

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35

Mao, Xue, Ying Bai, Jianyong Yu, and Bin Ding. "Insights into the flexibility of ZrMxOy (M = Na, Mg, Al) nanofibrous membranes as promising infrared stealth materials." Dalton Transactions 45, no. 15 (2016): 6660–66. http://dx.doi.org/10.1039/c6dt00319b.

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An undersized dopant dependent brittle to flexible transition in ZrM<sub>x</sub>O<sub>y</sub> (M = Na, Mg, Al) nanofibrous membranes was revealed. Al doped zirconia nanofibrous membranes with an ultra-flexibility of 23 mN exhibit low infrared emissivity.

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36

Liday, Jozef, Peter Vogrinčič, Ivan Hotový, et al. "Ohmic contacts to p-GaN Using Au/Ni-Mg-O Metallization." Journal of Electrical Engineering 61, no. 6 (2010): 378–81. http://dx.doi.org/10.2478/v10187-010-0058-8.

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Ohmic contacts to p-GaN Using Au/Ni-Mg-O Metallization Electrical characteristics and elemental depth profiles of ohmic contacts to p-GaN using Au/Ni-Mg-Ox metallization have been investigated. The objective was to examine the possibilities of increasing the charge carrier concentration in the surface region of GaN by adding Mg, thus of a p-type dopant into the Au/NiOx metallization structure. For this purpose, a Ni-Mg-Ox layer with a low concentration of Mg was deposited on p-GaN by dc reactive magnetron sputtering. The top Au layer was deposited in a similar way. The fabricated contact struc

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37

Hsu, Cheng-Chih, Wen-Kai Ho, Chyan-Chyi Wu, and Ching-Liang Dai. "The Enzymatic Doped/Undoped Poly-Silicon Nanowire Sensor for Glucose Concentration Measurement." Sensors 23, no. 6 (2023): 3166. http://dx.doi.org/10.3390/s23063166.

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In this work, enzymatic doped/undoped poly-silicon nanowire sensors with different lengths were fabricated using a top-down technique to measure glucose concentration. The sensitivity and resolution of these sensors correlate well with the dopant property and length of nanowire. Experimental results indicate that the resolution is proportional to the nanowire length and dopant concentration. However, the sensitivity is inversely proportional to the nanowire length. The optimum resolution can be better than 0.02 mg/dL for a doped type sensor with length of 3.5 μm. Furthermore, the proposed sens

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38

Rojanasuwan, Sunit, Pakorn Prajuabwan, Annop Chanhom, Anuchit Jaruvanawat, Adirek Rangkasikorn, and Jiti Nukeaw. "The Effect of the Central Metal Atom on the Structural Phase Transition of Indium Doped Metal Phthalocyanine." Advanced Materials Research 717 (July 2013): 146–52. http://dx.doi.org/10.4028/www.scientific.net/amr.717.146.

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We investigate the effect of central metal atom on the phthalocyanine (Pc) molecular crystals as intercalated with indium. As dopant, indium has physical interaction with some atom in the ring of Pc molecule and there is charge transfer between indium atom and Pc ring atom. Since In-doped Pc is a hole doping which increase positive charge carriers and the HOMO of ZnPc, CuPc, NiPc and MgPc are localized on the phthalocyanine ring, then, the central metal atom e.g. Zn, Cu, Ni and Mg are not directly involved with the charge transfer between indium dopant and their Pc molecule. The structural pha

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39

SITTHICHAI, Sudarat, Anukorn PHURUANGRAT, Titipun THONGTEM, and Somchai THONGTEM. "Influence of Mg dopant on photocatalytic properties of Mg-doped ZnO nanoparticles prepared by sol–gel method." Journal of the Ceramic Society of Japan 125, no. 3 (2017): 122–24. http://dx.doi.org/10.2109/jcersj2.16202.

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40

Kavaliunas, Vytautas, Edvinas Krugly, Mantas Sriubas, Hidenori Mimura, Giedrius Laukaitis, and Yoshinori Hatanaka. "Influence of Mg, Cu, and Ni Dopants on Amorphous TiO2 Thin Films Photocatalytic Activity." Materials 13, no. 4 (2020): 886. http://dx.doi.org/10.3390/ma13040886.

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The present study investigates Mg (0 ÷ 17.5 wt %), Cu (0 ÷ 21 wt %) and Ni (0 ÷ 20.2 wt %) dopants (M-doped) influence on photocatalytic activity of amorphous TiO2 thin films. Magnetron sputtering was used for the deposition of M-doped TiO2 thin films. According to SEM/EDS surface analysis, the magnetron sputtering technique allows making M-doped TiO2 thin films with high uniformity and high dopant dispersion. Photocatalysis efficiency analysis was set in oxalic acid under UV irradiation. In accordance with the TOC (total organic carbon) measurements followed by the apparent rate constant (kap

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41

Platonenko, Alexander, Sergei Piskunov, Thomas C. K. Yang, et al. "Electronic Structure of Mg-, Si-, and Zn-Doped SnO2 Nanowires: Predictions from First Principles." Materials 17, no. 10 (2024): 2193. http://dx.doi.org/10.3390/ma17102193.

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We investigated the electronic structure of Mg-, Si-, and Zn-doped four-faceted [001]- and [110]-oriented SnO2 nanowires using first-principles calculations based on the linear combination of atomic orbitals (LCAO) method. This approach, employing atomic-centered Gaussian-type functions as a basis set, was combined with hybrid density functional theory (DFT). Our results show qualitative agreement in predicting the formation of stable point defects due to atom substitutions on the surface of the SnO2 nanowire. Doping induces substantial atomic relaxation in the nanowires, changes in the covale

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Parekh, Amisha, Alp Tahincioglu, Chance Walters, et al. "Citrus-Fruit-Based Hydroxyapatite Anodization Coatings on Titanium Implants." Materials 18, no. 5 (2025): 1163. https://doi.org/10.3390/ma18051163.

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The increasing demand for titanium implants necessitates improved longevity. Plasma-sprayed hydroxyapatite coatings enhance implant osseointegration but are susceptible to delamination. Alternatively, anodized hydroxyapatite coatings have shown greater adhesion strengths. The present study aimed to develop anodized hydroxyapatite coatings on titanium using commercial calcium-fortified fruit juice as a calcium source. Varying the electrolyte compositions enabled the formation of four oxide groups with different predominate calcium compounds. Each oxide’s morphology, crystallinity, chemistry, mo

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Huang, Menglin, He Li, and Shiyou Chen. "Triple‐Site Dopant–Defect Complexes in Mg–H‐Codoped GaN: First‐Principles Identification." physica status solidi (a) 218, no. 7 (2021): 2000723. http://dx.doi.org/10.1002/pssa.202000723.

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Xu Bo, Yu Qing-Xuan, Wu Qi-Hong, Liao Yuan, Wang Guan-Zhong, and Fang Rong-Chuan. "Effects of strain and Mg-dopant on the photoluminescencespectra in p-type GaN." Acta Physica Sinica 53, no. 1 (2004): 204. http://dx.doi.org/10.7498/aps.53.204.

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Alsawalha, Ayman, Abdalaziz A. Almulhem, and A. Sedky. "The Influence of Cu and Mg Dopant on the Microwave Properties of PVC." Ferroelectrics 386, no. 1 (2009): 118–24. http://dx.doi.org/10.1080/00150190902961850.

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Alsawalha, Ayman, Abdalaziz A. Almulhem, and A. Sedky. "The Influence of Cu and Mg Dopant on the Microwave Properties of PVC." Ferroelectrics 387, no. 1 (2009): 147–53. http://dx.doi.org/10.1080/00150190902966677.

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Schmeits, M., N. D. Nguyen, and M. Germain. "Competition between deep impurity and dopant behavior of Mg in GaN Schottky diodes." Journal of Applied Physics 89, no. 3 (2001): 1890. http://dx.doi.org/10.1063/1.1339208.

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Umirov, Nurzhan, and Gulzat Nuroldayeva. "Study on Doping Strategies to Improve the Stability of Ni-Rich Layered Cathodes for Electric Vehicles." ECS Meeting Abstracts MA2024-02, no. 5 (2024): 650. https://doi.org/10.1149/ma2024-025650mtgabs.

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Lithium-ion batteries (LIBs) with layered-type cathodes, particularly Li[NixCoyMn(1-x-y)]O2 (NCM) and Li[NixCoyAl(1-x-y)]O2 (NCA), are considered frontrunners for powering next-generation electric vehicles (EVs) due to their high energy density potential. However, a critical challenge lies in achieving this potential – increasing the nickel (Ni) content (x>6) in these cathodes leads to decreased cycling lifetimes and lower thermal stabilities, hindering their widespread use. Researchers are actively exploring the strategy of doping transition metals (Al, Mg, Ti, W, etc.) into Ni-rich layere

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Rohayati, Zaina, Eko Sri Kunarti, and Bambang Rusdiarso. "Synthesis of Magnetically Separable Fe<sub>3</sub>O<sub>4</sub>/TiO<sub>2</sub>-Ag with Enhanced Photocatalytic Performance under Visible Light for Degradation of Metanil Yellow." Key Engineering Materials 949 (July 26, 2023): 131–42. http://dx.doi.org/10.4028/p-awq1lx.

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Synthesis of magnetic photocatalyst, Fe3O4/TiO2-Ag, with characterization and photoactivity examination have been investigated. The synthesis was initiated by preparation of Fe3O4 particles using coprecipitation method. The Fe3O4 particles were then coated with TiO2-Ag, weight ratios of concentrations Silver dopant were varied from 1 to 3, 5 and 7 wt%. The Fe3O4/TiO2-Ag was characterized by FTIR, XRD, TEM, SEM-EDX, DR UV-visible and VSM methods. The degradation of metanil yellow solution was performed under exposure to UV, visible light and dark condition at optimum condition. The Fe3O4 and an

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Rohmah, Miftakhul, Ainun Nikmah, Arif Hidayat, Sunaryono Sunaryono, Muhammad Safwan Abd Aziz, and Ahmad Taufiq. "Synthesis of Mg<sub>0.5</sub>Fe<sub>2.5</sub>O<sub>4</sub>/Chitosan Nanocomposite for Drug Delivery System." Journal of Biomimetics, Biomaterials and Biomedical Engineering 68 (June 6, 2025): 11–19. https://doi.org/10.4028/p-lokj0p.

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This study developed the synthesis of Mg0.5Fe2.5O4/chitosan nanocomposite and its application as a drug delivery system. Doxorubicin hydrochloride (DOX), as a model drug, was adsorbed onto the surface of the Mg0.5Fe2.5O4/Chitosan nanocomposite, and its loading and release efficiency was observed using UV-Vis spectroscopy. After synthesizing Mg0.5Fe2.5O4/chitosan nanocomposite, various analytical devices were used to qualify and quantify the nanocomposite, including XRD, FTIR, SEM-EDX, and VSM. The XRD results showed that the Mg dopant was well inserted into the Fe3O4 without forming Mg or its

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