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Journal articles on the topic 'Hybrid metal/semiconductor light sources'

Author: Grafiati

Published: 22 September 2023

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1

Yokota, Hiroaki, Atsuhito Fukasawa, Minako Hirano, and Toru Ide. "Low-Light Photodetectors for Fluorescence Microscopy." Applied Sciences 11, no. 6 (2021): 2773. http://dx.doi.org/10.3390/app11062773.

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Over the years, fluorescence microscopy has evolved and has become a necessary element of life science studies. Microscopy has elucidated biological processes in live cells and organisms, and also enabled tracking of biomolecules in real time. Development of highly sensitive photodetectors and light sources, in addition to the evolution of various illumination methods and fluorophores, has helped microscopy acquire single-molecule fluorescence sensitivity, enabling single-molecule fluorescence imaging and detection. Low-light photodetectors used in microscopy are classified into two categories

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Jin, Sangrak, Yale Jeon, Min Soo Jeon, et al. "Acetogenic bacteria utilize light-driven electrons as an energy source for autotrophic growth." Proceedings of the National Academy of Sciences 118, no. 9 (2021): e2020552118. http://dx.doi.org/10.1073/pnas.2020552118.

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Acetogenic bacteria use cellular redox energy to convert CO2 to acetate using the Wood–Ljungdahl (WL) pathway. Such redox energy can be derived from electrons generated from H2 as well as from inorganic materials, such as photoresponsive semiconductors. We have developed a nanoparticle-microbe hybrid system in which chemically synthesized cadmium sulfide nanoparticles (CdS-NPs) are displayed on the cell surface of the industrial acetogen Clostridium autoethanogenum. The hybrid system converts CO2 into acetate without the need for additional energy sources, such as H2, and uses only light-induc

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3

Wei, Hong, and Hongxing Xu. "Nanowire-based plasmonic waveguides and devices for integrated nanophotonic circuits." Nanophotonics 1, no. 2 (2012): 155–69. http://dx.doi.org/10.1515/nanoph-2012-0012.

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AbstractThe fast development of plasmonics have greatly advanced our understanding to the abundant phenomena related to surface plamon polaritons (SPPs) and improved our ability to manipulate light at the nanometer scale. With tightly confined local field, SPPs can be transmitted in waveguides of subwavelength dimensions. Nanophotonic circuits built with plasmonic elements can be scaled down to dimensions compatible with semiconductor-based nanoelectronic circuits, which provides a potential solution for the next-generation information technology. Different structures have been explored as pla

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Oda, Ryosuke, Toshiki Hirogaki, Eiichi Aoyama, and Keiji Ogawa. "Hybrid Process of Laser Heat Treatment and Forming of Thin Plate with a Small Power Semiconductor Laser." Advanced Materials Research 1136 (January 2016): 423–29. http://dx.doi.org/10.4028/www.scientific.net/amr.1136.423.

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In recent years, the recycling of resources has become important because of the aggravation of global environmental concerns. In light of this, it is necessary to minimize the resource needs of current production systems. This concept is called sustainable development. When this concept is applied to machine tools, the assumption is that small parts should be processed using small machines. Additionally, the diversification of consumer needs and the ephemeralization of product life cycles are progressing in industry. As a result, the overall production system has changed from high-mix low-volu

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Graus, Javier, Carlos Bueno-Alejo, and Jose Hueso. "In-Situ Deposition of Plasmonic Gold Nanotriangles and Nanoprisms onto Layered Hydroxides for Full-Range Photocatalytic Response towards the Selective Reduction of p-Nitrophenol." Catalysts 8, no. 9 (2018): 354. http://dx.doi.org/10.3390/catal8090354.

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In this work, we present photocatalysis as a greener alternative to conventional catalysis where harsh reaction conditions, temperature and/or pressure are needed. Photodegradation of organic pollutants is a cost-effective, eco-friendly solution for the decontamination of water and air, and is a field that has been continuously growing over the last decade. Plasmonic metal nanoparticles absorb light irradiation that is transferred to the chemical reaction in a different fashion. Furthermore, plasmonic nanostructures can be combined with other materials, such as semiconductors or a basic suppor

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Paudel, Hari P., and Michael N. Leuenberger. "Light-Controlled Plasmon Switching Using Hybrid Metal-Semiconductor Nanostructures." Nano Letters 12, no. 6 (2012): 2690–96. http://dx.doi.org/10.1021/nl203990c.

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Buchal, Ch, and M. Löken. "Silicon-Based Metal-Semiconductor-Metal Detectors." MRS Bulletin 23, no. 4 (1998): 55–59. http://dx.doi.org/10.1557/s088376940003027x.

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Photodetectors must provide fast and efficient conversion of photons to charge carriers. When considering semiconductor light sources, the indirect bandgap of silicon and germanium represents a serious obstacle to radiative electron-hole recombinations. Momentum conservation demands the simultaneous interaction of the electron-hole pair with a momentum-matching phonon. As a consequence, radiative recombinations are five orders of magnitude less probable in Si if compared to a direct semiconductor such as GaAs.Although the absorption of a photon and the generation of an electron-hole pair may b

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Maeda, Kazuhiko, Keita Sekizawa, and Osamu Ishitani. "A polymeric-semiconductor–metal-complex hybrid photocatalyst for visible-light CO2 reduction." Chemical Communications 49, no. 86 (2013): 10127. http://dx.doi.org/10.1039/c3cc45532g.

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9

Park, Kyoung-Won, and Alexie M. Kolpak. "Photocatalytic hydrogen evolution activity of Co/CoO hybrid structures: a first-principles study on the Co layer thickness effect." Journal of Materials Chemistry A 7, no. 27 (2019): 16176–89. http://dx.doi.org/10.1039/c9ta04508b.

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Interfaces formed at metal/semiconductor hybrid system have the peculiar electronic characteristics depending on the thickness of metal layer. The different characteristics tune light responses of the metallic and semiconducting layers, resulting in various photocatalytic hydrogen evolution activities in the hybrid system.

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10

Newaz, A. K. M., W. J. Chang, K. D. Wallace, et al. "A nanoscale Ti/GaAs metal-semiconductor hybrid sensor for room temperature light detection." Applied Physics Letters 97, no. 8 (2010): 082105. http://dx.doi.org/10.1063/1.3480611.

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11

Akitsu, Takashiro, Barbara Miroslaw, and Shanmugavel Sudarsan. "Photofunctions in Hybrid Systems of Schiff Base Metal Complexes and Metal or Semiconductor (Nano)Materials." International Journal of Molecular Sciences 23, no. 17 (2022): 10005. http://dx.doi.org/10.3390/ijms231710005.

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Composite materials very often provide new catalytic, optical or other physicochemical properties not observed for each component separately. Photofunctions in hybrid systems are an interesting topic of great importance for industry. This review presents the recent advances, trends and possible applications of photofunctions of hybrid systems composed of Schiff base metal complexes and metal or semiconductor (nano)materials. We focus on photocatalysis, sensitization in solar cells (DSSC—dye sensitized solar cell), ligand-induced chirality and applications in environmental protection for Cr(VI)

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12

Fouad, Dina Mamdouh, and Mona Bakr Mohamed. "Comparative Study of the Photocatalytic Activity of Semiconductor Nanostructures and Their Hybrid Metal Nanocomposites on the Photodegradation of Malathion." Journal of Nanomaterials 2012 (2012): 1–8. http://dx.doi.org/10.1155/2012/524123.

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This work is devoted to synthesize different semiconductor nanoparticles and their metal-hybrid nanocomposites such as TiO2, Au/TiO2, ZnO, and Au/ZnO. The morphology and crystal structure of the prepared nanomaterials are characterized by the TEM and XRD, respectively. These materials are used as catalysts for the photodegradation of Malathion which is one of the most commonly used pesticides in the developing countries. The degradation of 10 ppm Malathion under ultraviolet (UV) and visible light in the presence of the different synthesized nanocomposites was analyzed with high-performance liq

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13

Boller, Klaus-J., Albert van Rees, Youwen Fan, et al. "Hybrid Integrated Semiconductor Lasers with Silicon Nitride Feedback Circuits." Photonics 7, no. 1 (2019): 4. http://dx.doi.org/10.3390/photonics7010004.

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Hybrid integrated semiconductor laser sources offering extremely narrow spectral linewidth, as well as compatibility for embedding into integrated photonic circuits, are of high importance for a wide range of applications. We present an overview on our recently developed hybrid-integrated diode lasers with feedback from low-loss silicon nitride (Si 3 N 4 in SiO 2 ) circuits, to provide sub-100-Hz-level intrinsic linewidths, up to 120 nm spectral coverage around a 1.55 μ m wavelength, and an output power above 100 mW. We show dual-wavelength operation, dual-gain operation, laser frequency comb

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Zhu, Kai, Chunrui Wang, Pedro H. C. Camargo, and Jiale Wang. "Investigating the effect of MnO2 band gap in hybrid MnO2–Au materials over the SPR-mediated activities under visible light." Journal of Materials Chemistry A 7, no. 3 (2019): 925–31. http://dx.doi.org/10.1039/c8ta09785b.

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Micheel, Mathias, Kaituo Dong, Lilac Amirav, and Maria Wächtler. "Lateral charge migration in 1D semiconductor–metal hybrid photocatalytic systems." Journal of Chemical Physics 158, no. 15 (2023): 154701. http://dx.doi.org/10.1063/5.0144785.

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Colloidal nanorods based on CdS or CdSe, functionalized with metal particles, have proven to be efficient catalysts for light-driven hydrogen evolution. Seeded CdSe@CdS nanorods have shown increasing performance with increasing rod length. This observation was rationalized by the increasing lifetime of the separated charges, as a large distance between holes localized in the CdSe seed and electrons localized at the metal tip decreases their recombination rate. However, the impact of nanorod length on the electron-to-tip localization efficiency or pathway remained an open question. Therefore, w

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Dana, Jayanta, Partha Maity, and Hirendra N. Ghosh. "Hot-electron transfer from the semiconductor domain to the metal domain in CdSe@CdS{Au} nano-heterostructures." Nanoscale 9, no. 27 (2017): 9723–31. http://dx.doi.org/10.1039/c7nr02232h.

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Semiconductor–metal hybrid nanostructures are recognized as great materials due to their high level of light-induced charge separation, which has direct relevance in photocatalysis and solar energy conversion.

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Lian, Tianquan. "(Invited) Light Driven H₂ Generation in Pt-Tipped CdS Nanorods: Dependence on the Pt Size and CdS Rod Length." ECS Meeting Abstracts MA2022-01, no. 13 (2022): 932. http://dx.doi.org/10.1149/ma2022-0113932mtgabs.

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Colloidal quantum confined semiconductor-metal nano-heterostructures are a promising class of photocatalysts for solar energy conversion. In these photocatalysts, the semiconductor domain serves as the light absorber and the metal as the catalyst. Such photocatalysts combine the superior light absorption and charge transport properties of the semiconductor with the superior catalytic activity and selectivity of the metal. Furthermore, both domains can be independently tuned to enhance the photocatalytic performance of the heterostructure. Among various semiconductor/metal heterostructures, met

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18

Lan, Meng, Guoli Fan, Lan Yang, and Feng Li. "Enhanced visible-light-induced photocatalytic performance of a novel ternary semiconductor coupling system based on hybrid Zn–In mixed metal oxide/g-C3N4 composites." RSC Advances 5, no. 8 (2015): 5725–34. http://dx.doi.org/10.1039/c4ra07073a.

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Ternary semiconductor coupling system based on hybrid Zn–In mixed metal oxide/g-C<sub>3</sub>N<sub>4</sub> composites exhibited significantly enhanced visible-light-induced photocatalytic performance.

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19

Ooi, Zi-En, Thelese R. B. Foong, Samarendra P. Singh, Khai Leok Chan, and Ananth Dodabalapur. "A light emitting transistor based on a hybrid metal oxide-organic semiconductor lateral heterostructure." Applied Physics Letters 100, no. 9 (2012): 093302. http://dx.doi.org/10.1063/1.3689758.

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Yang, Mo, Jin Cheng Song, and Miao Yi. "Compact Reflection Bragg Grating Based on Metal-Insulator-Semiconductor Structure." Advanced Materials Research 472-475 (February 2012): 2260–63. http://dx.doi.org/10.4028/www.scientific.net/amr.472-475.2260.

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An ultra-compact and broad-band Bragg grating based on hybrid plasmonic waveguide is presented and investigated. The Bragg grating is formed by a semiconductor trip which is separated from a metal surface by a nanoscale insulator layer. Simulation results demonstrate that the proposed structure shows the capability of efficient wavelength selection near the telecom bandwidths and transmits the light with a strong mode confinement and low propagation loss. It will have a potential application in the broad-band telecommunications systems and the integrated photonic circuits.

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21

Zhang, Xiangchao, Difa Xu, Yanrong Jia, and Shiying Zhang. "Fabrication of metal/semiconductor hybrid Ag/AgInO2 nanocomposites with enhanced visible-light-driven photocatalytic properties." RSC Advances 7, no. 48 (2017): 30392–96. http://dx.doi.org/10.1039/c7ra02331f.

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XI, J. Q., MANAS OJHA, WOOJIN CHO, et al. "OMNI-DIRECTIONAL REFLECTOR USING A LOW REFRACTIVE INDEX MATERIAL." International Journal of High Speed Electronics and Systems 14, no. 03 (2004): 726–31. http://dx.doi.org/10.1142/s0129156404002740.

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Triple-layer omni-directional reflectors (ODRs) consisting of a semiconductor, a transparent quarter-wavelength dielectric layer and metal layer have high reflectivities at all angles of incidence. In this paper, triple-layer ODRs are demonstrated that incorporate nanoporous SiO 2, a novel low-refractive-index (low-n) material with refractive indices n ≪ 1.46 as well as dense SiO 2 (n = 1.46). GaP and Ag serve as the semiconductor and metal layer materials, respectively. An angle-integrated transverse electric (TE) mode reflectivity of R avg | TE = 99.9 % and transverse magnetic (TM) mode refl

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23

Lee, Ho-Jun, Jung-Wook Min, Kye-Jin Lee, et al. "Improved Light Output Power of Chemically Transferred InGaN/GaN Light-Emitting Diodes for Flexible Optoelectronic Applications." Journal of Nanomaterials 2015 (2015): 1–6. http://dx.doi.org/10.1155/2015/142096.

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Recent needs of semiconductor lighting sources have pursued diverse functionalities such as flexibility and transparency under high quantum efficiency. Inorganic/organic hybrid light-emitting diodes (LEDs) are one way to meet these requirements. Here, we report on flexible III-nitride-based LEDs and the improvement of their electrical and optical properties. To realize high light emission power and stable current operation, high-quality epitaxy and elaborate chip processing were performed. The fabricated flexible LEDs showed over threefold optical output power compared to normal LEDs on Si and

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24

Camargo, Franco V. A., Yuval Ben-Shahar, Tetsuhiko Nagahara, et al. "Visualizing Ultrafast Electron Transfer Processes in Semiconductor–Metal Hybrid Nanoparticles: Toward Excitonic–Plasmonic Light Harvesting." Nano Letters 21, no. 3 (2021): 1461–68. http://dx.doi.org/10.1021/acs.nanolett.0c04614.

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25

Huang, Zhenping, Jian Chen, Yi Liu, et al. "Hybrid metal-semiconductor cavities for multi-band perfect light absorbers and excellent electric conducting interfaces." Journal of Physics D: Applied Physics 50, no. 33 (2017): 335106. http://dx.doi.org/10.1088/1361-6463/aa7c14.

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26

Maeda, Kazuhiko. "Metal‐Complex/Semiconductor Hybrid Photocatalysts and Photoelectrodes for CO 2 Reduction Driven by Visible Light." Advanced Materials 31, no. 25 (2019): 1808205. http://dx.doi.org/10.1002/adma.201808205.

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27

Hong, Jong-Wook. "Development of Visible-Light-Driven Rh–TiO2–CeO2 Hybrid Photocatalysts for Hydrogen Production." Catalysts 11, no. 7 (2021): 848. http://dx.doi.org/10.3390/catal11070848.

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Visible-light-driven hydrogen production through photocatalysis has attracted enormous interest owing to its great potential to address energy and environmental issues. However, photocatalysis possesses several limitations to overcome for practical applications, such as low light absorption efficiency, rapid charge recombination, and poor stability of photocatalysts. Here, the preparation of efficient noble metal–semiconductor hybrid photocatalysts for photocatalytic hydrogen production is presented. The prepared ternary Rh–TiO2–CeO2 hybrid photocatalysts exhibited excellent photocatalytic per

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Ferrera, M., M. Rahaman, S. Sanders, et al. "Controlling excitons in the quantum tunneling regime in a hybrid plasmonic/2D semiconductor interface." Applied Physics Reviews 9, no. 3 (2022): 031401. http://dx.doi.org/10.1063/5.0078068.

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The electromagnetic field confinement and amplification typical of nano-sized metallic objects supporting localized surface plasmon resonances, i.e., light-induced collective electronic oscillations, can significantly strengthen the interaction of light with atomically thin transition metal dichalcogenides. In view of the realization of plasmon-enhanced devices, it is crucial to investigate the effects induced by light confinement within metallic nanostructures on the excitonic properties of these materials at the nanoscale. Here, we exploit tip-enhanced photoluminescence spectroscopy to local

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Zhang, Jing, Xiao Meng Wu, and Bo Dang. "Optical bistability and multistability in hybrid system." Laser Physics 33, no. 9 (2023): 096002. http://dx.doi.org/10.1088/1555-6611/ace3bd.

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Abstract In this letter, a comprehensive investigation has been conducted on the optical bistability (OB) and optical multistability (OM) phenomena manifested by transmitted light in a ring cavity consisting of a hybrid system of metal nanoparticle (MNP) and semiconductor quantum dot (SQD). Our study has been primarily devoted to examining the influence of the distance between SQD and MNP, as well as the susceptibilities of the SQD, the MNP, and the hybrid nanostructure as a whole, on the OB and OM traits of the transmitted light. Our discoveries demonstrate that a transition from OB to OM, or

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Nemanich, R. J., S. L. English, J. D. Hartman, W. Yang, H. Ade, and R. F. Davis. "Photo-Electron Emission Microscopy of Semiconductor Surfaces." Microscopy and Microanalysis 4, S2 (1998): 606–7. http://dx.doi.org/10.1017/s1431927600023151.

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The technique of photo-electron emission microscopy (PEEM) is based on imaging of photo excited electrons from a surface. Typically ultra violet (UV) light above the work function of a metal will cause electrons to be emitted from a surface. Since photo excited electrons originate very near to the surface, they essentially reflect the electronic structure of the surface. These electrons may be accelerated and imaged, and the image will reflect the properties of the surface.While the PEEM technique has been understood in a basic sense for many years, it has been limited by the lack of high inte

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31

Chen, Hua-Jun. "Fano resonance induced fast to slow light in a hybrid semiconductor quantum dot and metal nanoparticle system." Laser Physics Letters 17, no. 2 (2020): 025201. http://dx.doi.org/10.1088/1612-202x/ab60ac.

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32

Waiskopf, Nir, Yuval Ben-Shahar, Michael Galchenko, et al. "Photocatalytic Reactive Oxygen Species Formation by Semiconductor–Metal Hybrid Nanoparticles. Toward Light-Induced Modulation of Biological Processes." Nano Letters 16, no. 7 (2016): 4266–73. http://dx.doi.org/10.1021/acs.nanolett.6b01298.

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Linic, Suljo. "(Invited) Maximizing Efficiencies of Photocatalytic Water Splitting By Engineering Interfaces in Multi-Component Photocatalysts." ECS Meeting Abstracts MA2018-01, no. 31 (2018): 1868. http://dx.doi.org/10.1149/ma2018-01/31/1868.

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Solar splitting of water to hydrogen and oxygen is a critical chemical transformation for which no commercially viable photocatalytic systems exist. Developing materials that could execute this reaction with high efficiencies would fundamentally change the environmental footprint of many segments of our economy, including chemical industry, manufacturing and energy sectors. The materials that have received the most attention for this application are hybrids that contain a semiconductor light absorber and an attached metal electrocatalyst that performs chemical transformations. In these systems

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Haffner, Christian, Andreas Joerg, Michael Doderer, et al. "Nano–opto-electro-mechanical switches operated at CMOS-level voltages." Science 366, no. 6467 (2019): 860–64. http://dx.doi.org/10.1126/science.aay8645.

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Combining reprogrammable optical networks with complementary metal-oxide semiconductor (CMOS) electronics is expected to provide a platform for technological developments in on-chip integrated optoelectronics. We demonstrate how opto-electro-mechanical effects in micrometer-scale hybrid photonic-plasmonic structures enable light switching under CMOS voltages and low optical losses (0.1 decibel). Rapid (for example, tens of nanoseconds) switching is achieved by an electrostatic, nanometer-scale perturbation of a thin, and thus low-mass, gold membrane that forms an air-gap hybrid photonic-plasmo

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Suzuki, Tomiko M., Akihide Iwase, Hiromitsu Tanaka, Shunsuke Sato, Akihiko Kudo, and Takeshi Morikawa. "Z-scheme water splitting under visible light irradiation over powdered metal-complex/semiconductor hybrid photocatalysts mediated by reduced graphene oxide." Journal of Materials Chemistry A 3, no. 25 (2015): 13283–90. http://dx.doi.org/10.1039/c5ta02045j.

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González-Fernández, Alfredo A., Mariano Aceves-Mijares, Oscar Pérez-Díaz, Joaquin Hernández-Betanzos, and Carlos Domínguez. "Embedded Silicon Nanoparticles as Enabler of a Novel CMOS-Compatible Fully Integrated Silicon Photonics Platform." Crystals 11, no. 6 (2021): 630. http://dx.doi.org/10.3390/cryst11060630.

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The historical bottleneck for truly high scale integrated photonics is the light emitter. The lack of monolithically integrable light sources increases costs and reduces scalability. Quantum phenomena found in embedded Si particles in the nanometer scale is a way of overcoming the limitations for bulk Si to emit light. Integrable light sources based in Si nanoparticles can be obtained by different CMOS (Complementary Metal Oxide Semiconductor) -compatible materials and techniques. Such materials in combination with Si3N4 photonic elements allow for integrated Si photonics, in which photodetect

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Morisawa, Naoya, Mitsuhisa Ikeda, Sho Nakanishi, Akira Kawanami, Katsunori Makihara, and Seiichi Miyazaki. "Light-Induced Carrier Transfer in NiSi-Nanodots/Si-Quantum-Dots Hybrid Floating Gate in Metal–Oxide–Semiconductor Structures." Japanese Journal of Applied Physics 49, no. 4 (2010): 04DJ04. http://dx.doi.org/10.1143/jjap.49.04dj04.

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Torres-Pinto, André, Maria J. Sampaio, Cláudia G. Silva, Joaquim L. Faria, and Adrián M. T. Silva. "Recent Strategies for Hydrogen Peroxide Production by Metal-Free Carbon Nitride Photocatalysts." Catalysts 9, no. 12 (2019): 990. http://dx.doi.org/10.3390/catal9120990.

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Hydrogen peroxide (H2O2) is a chemical which has gained wide importance in several industrial and research fields. Its mass production is mostly performed by the anthraquinone (AQ) oxidation reaction, leading to high energy consumption and significant generation of wastes. Other methods of synthesis found in the literature include the direct synthesis from oxygen and hydrogen. However, this H2O2 production process is prone to explosion hazard or undesirable by‑product generation. With the growing demand of H2O2, the development of cleaner and economically viable processes has been under intens

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Griffiths, A. D., J. Herrnsdorf, J. J. D. McKendry, M. J. Strain, and M. D. Dawson. "Gallium nitride micro-light-emitting diode structured light sources for multi-modal optical wireless communications systems." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 378, no. 2169 (2020): 20190185. http://dx.doi.org/10.1098/rsta.2019.0185.

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Gallium nitride-based light-emitting diodes (LEDs) have revolutionized the lighting industry with their efficient generation of blue and green light. While broad-area (square millimetre) devices have become the dominant LED lighting technology, fabricating LEDs into micro-scale pixels (micro-LEDs) yields further advantages for optical wireless communications (OWC), and for the development of smart-lighting applications such as tracking and imaging. The smaller active areas of micro-LEDs result in high current density operation, providing high modulation bandwidths and increased optical power d

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Feng, Chengang, Mingdong Yi, Shunyang Yu, Ivo A. Hümmelgen, Tong Zhang, and Dongge Ma. "Hybrid Permeable Metal-Base Transistor with Large Common-Emitter Current Gain and Low Operational Voltage." Journal of Nanoscience and Nanotechnology 8, no. 4 (2008): 2037–43. http://dx.doi.org/10.1166/jnn.2008.054.

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We demonstrate the suitability of N,N′-diphenyl-N,N′-bis(1-naphthylphenyl)-1,1′-biphenyl-4,4′-diamine (NPB), an organic semiconductor widely used in organic light-emitting diodes (OLEDs), for high-gain, low operational voltage nanostructured vertical-architecture transistors, which operate as permeable-base transistors. By introducing vanadium oxide (V2O5) between the injecting metal and NPB layer at the transistor emitter, we reduced the emitter operational voltage. The addition of two Ca layers, leading to a Ca/Ag/Ca base, allowed to obtain a large value of common-emitter current gain, but s

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Morris, Gareth, Ioritz Sorzabal-Bellido, Matthew Bilton, et al. "A Novel Self-Assembly Strategy for the Fabrication of Nano-Hybrid Satellite Materials with Plasmonically Enhanced Catalytic Activity." Nanomaterials 11, no. 6 (2021): 1580. http://dx.doi.org/10.3390/nano11061580.

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The generation of hydrogen from water using light is currently one of the most promising alternative energy sources for humankind but faces significant barriers for large-scale applications due to the low efficiency of existing photo-catalysts. In this work we propose a new route to fabricate nano-hybrid materials able to deliver enhanced photo-catalytic hydrogen evolution, combining within the same nanostructure, a plasmonic antenna nanoparticle and semiconductor quantum dots (QDs). For each stage of our fabrication process we probed the chemical composition of the materials with nanometric s

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Singh, Deobrat, Pritam Kumar Panda, Nabil Khossossi, Yogendra Kumar Mishra, Abdelmajid Ainane, and Rajeev Ahuja. "Impact of edge structures on interfacial interactions and efficient visible-light photocatalytic activity of metal–semiconductor hybrid 2D materials." Catalysis Science & Technology 10, no. 10 (2020): 3279–89. http://dx.doi.org/10.1039/d0cy00420k.

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Nakada, Akinobu, Ryo Kuriki, Keita Sekizawa, et al. "Effects of Interfacial Electron Transfer in Metal Complex–Semiconductor Hybrid Photocatalysts on Z-Scheme CO2 Reduction under Visible Light." ACS Catalysis 8, no. 10 (2018): 9744–54. http://dx.doi.org/10.1021/acscatal.8b03062.

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Sun, Feiying, Changbin Nie, Xingzhan Wei, Hu Mao, Yupeng Zhang, and Guo Ping Wang. "All-optical modulation based on MoS₂-Plasmonic nanoslit hybrid structures." Nanophotonics 10, no. 16 (2021): 3957–65. http://dx.doi.org/10.1515/nanoph-2021-0279.

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Abstract Two-dimensional (2D) materials with excellent optical properties and complementary metal-oxide-semiconductor (CMOS) compatibility have promising application prospects for developing highly efficient, small-scale all-optical modulators. However, due to the weak nonlinear light-material interaction, high power density and large contact area are usually required, resulting in low light modulation efficiency. In addition, the use of such large-band-gap materials limits the modulation wavelength. In this study, we propose an all-optical modulator integrated Si waveguide and single-layer Mo

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Garcia-Peiro, Jose I., Javier Bonet-Aleta, Carlos J. Bueno-Alejo, and Jose L. Hueso. "Recent Advances in the Design and Photocatalytic Enhanced Performance of Gold Plasmonic Nanostructures Decorated with Non-Titania Based Semiconductor Hetero-Nanoarchitectures." Catalysts 10, no. 12 (2020): 1459. http://dx.doi.org/10.3390/catal10121459.

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Plasmonic photocatalysts combining metallic nanoparticles and semiconductors have been aimed as versatile alternatives to drive light-assisted catalytic chemical reactions beyond the ultraviolet (UV) regions, and overcome one of the major drawbacks of the most exploited photocatalysts (TiO2 or ZnO). The strong size and morphology dependence of metallic nanostructures to tune their visible to near-infrared (vis-NIR) light harvesting capabilities has been combined with the design of a wide variety of architectures for the semiconductor supports to promote the selective activity of specific cryst

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Tang, Ling, Shan Liang, Jian-Bo Li, et al. "Controlled Synthesis of Au Nanocrystals-Metal Selenide Hybrid Nanostructures toward Plasmon-Enhanced Photoelectrochemical Energy Conversion." Nanomaterials 10, no. 3 (2020): 564. http://dx.doi.org/10.3390/nano10030564.

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A simple method for the controllable synthesis of Au nanocrystals–metal selenide hybrid nanostructures via amino acid guiding strategy is proposed. The results show that the symmetric overgrowth mode of PbSe shells on Au nanorods can be precisely manipulated by only adjusting the initial concentration of Pb2+. The shape of Au–PbSe hybrids can evolve from dumbbell-like to yolk-shell. Interestingly, the plasmonic absorption enhancement could be tuned by the symmetry of these hybrid nanostructures. This provides an effective pathway for maneuvering plasmon-induced energy transfer in metal–semicon

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Saad, A. M., M. B. Mohamed, and I. M. Azzouz. "Synthesis, optical properties, and amplified spontaneous emission of hybrid Ag–SiO2–CdTe nanocomposite." Canadian Journal of Physics 95, no. 10 (2017): 933–40. http://dx.doi.org/10.1139/cjp-2016-0368.

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In this work, a hybrid nanocomposite of metal–dielectric–semiconductor, Ag–SiO2–CdTe, nanoparticles has been synthesized. Silica shell was used as a spacer to isolate and control the distance between Ag plasmonic and luminescent CdTe QDs. It was found that insertion of silica shell enhances the plasmonic field more than 31%. Accordingly, Ag-SiO2 plasmonic enhances the luminescence and quantum yield of CdTe quantum dots by 200% and 55%, respectively. The threshold power of amplified spontaneous emission of CdTe was found to depend on both temperature and excitation wavelength location with resp

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Govatsi, Katerina, Aspasia Antonelou, Labrini Sygellou, Stylianos G. Neophytides, and Spyros N. Yannopoulos. "Hybrid ZnO/MoS2 Core/Sheath Heterostructures for Photoelectrochemical Water Splitting." Applied Nano 2, no. 3 (2021): 148–61. http://dx.doi.org/10.3390/applnano2030012.

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The rational synthesis of semiconducting materials with enhanced photoelectrocatalytic efficiency under visible light illumination is a long-standing issue. ZnO has been systematically explored in this field, as it offers the feasibility to grow a wide range of nanocrystal morphology; however, its wide band gap precludes visible light absorption. We report on a novel method for the controlled growth of semiconductor heterostructures and, in particular, core/sheath ZnO/MoS2 nanowire arrays and the evaluation of their photoelectrochemical efficiency in oxygen evolution reaction. ZnO nanowire arr

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Naya, Shin-ichi, Tadahiro Niwa, Ryo Negishi, Hisayoshi Kobayashi, and Hiroaki Tada. "Multi-Electron Oxygen Reduction by a Hybrid Visible-Light-Photocatalyst Consisting of Metal-Oxide Semiconductor and Self-Assembled Biomimetic Complex." Angewandte Chemie International Edition 53, no. 50 (2014): 13894–97. http://dx.doi.org/10.1002/anie.201408352.

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Naya, Shin-ichi, Tadahiro Niwa, Ryo Negishi, Hisayoshi Kobayashi, and Hiroaki Tada. "Multi-Electron Oxygen Reduction by a Hybrid Visible-Light-Photocatalyst Consisting of Metal-Oxide Semiconductor and Self-Assembled Biomimetic Complex." Angewandte Chemie 126, no. 50 (2014): 14114–17. http://dx.doi.org/10.1002/ange.201408352.

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