Results 61 to 70 of about 156,761 (319)

On tailoring structural and optoelectronic properties of TiO2 thin films synthesized via ‘room’ temperature high power impulse magnetron sputtering (HiPIMS)

JPhys Energy
Titanium dioxide (TiO _2 ) is a key material in optoelectronic and energy conversion technologies, including solar cells and photocatalysis. However, integrating TiO _2 into flexible or temperature-sensitive devices requires deposition techniques that ...
Aarati Chacko, Erwin Hack, Sebastian Lohde, Robin Bucher, Oğuz Yildirim, Arnold Müller, Michel Calame, Hans J Hug, Mirjana Dimitrievska   +8 more
doaj   +1 more source

Germanium-tin alloys: applications for optoelectronics in mid-infrared spectra

Opto-Electronic Advances, 2018
We summarize our work of the optoelectronic devices based on Germanium-tin (GeSn) alloys assisted with the Si3N4 liner stressor in mid-infrared (MIR) domains.
Fang Cizhe, Liu Yan, Zhang Qingfang, Han Genquan, Gao Xi, Yao Shao, Zhang Jincheng, Hao Yue   +7 more
doaj   +1 more source

Novel fabrication technique for planar glass waveguides

, 1998
A novel technique has been developed for the deposition of low-loss planar glass waveguides by directly spin coating from the liquid, thus overcoming the problems of reproducing glass stoichiometry when depositing from the ...
Brown, C.T.A., Harwood, D.W.J., Payne, D.N., Shepherd, D.P., Taylor, E.R.   +4 more
core   +1 more source

Single Pair of Weyl Points Evolve From Spin Group‐Protected Nodal Line in Half‐Metallic Ferromagnet V3S4

Advanced Functional Materials, EarlyView.
A spin group (SG)‐based mechanism is proposed to realize a single pair of Weyl points. PT‐symmetric nodal lines (NLs) persist under T‐breaking, protected by the combination of SG and P symmetry. When considering spin‐orbit coupling, the SG‐protected NL will split into Weyl points, which will also induce anomalous transport phenomena arising from ...
Shifeng Qian, Yao Zhang, Xiaowei Sheng, Xiuxian Yang, Gang Zhang, Junfeng Gao, Xiaotian Wang   +6 more
wiley   +1 more source

Electronic and optoelectronic applications of solution-processed two-dimensional materials

Science and Technology of Advanced Materials, 2019
The isolation of graphene in 2004 has initiated much interest in two-dimensional (2D) materials. With decades of development, solution processing of 2D materials has becoming very promising due to its large-scale production capability, and it is ...
Jingyun Wang, Bilu Liu
doaj   +1 more source

Red-emitting Ba2Si5N8Eu2+ conversion phosphor: A new selection for enhancing the optical performance of the in-cup packaging MCW-LEDs [PDF]

, 2018
In this research, the influence of the red-emitting Ba2Si5N8Eu2+ convention phosphor on the optical performance of the 7,000K and 7,700K in-cup packaging multi-chip white LEDs (MCW-LEDs) is investigated.
Minh, Tran Hoang Quang, Nguyen, Nhan Khanh Huu, Nguyen, Thi Phuong Thao, Phu, Tran Tin   +3 more
core   +1 more source

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

Advanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida, Yanjie Wang, Thais A. Rodrigues, Paulo H. H. Nunes, Vagner R. de Mendonça, Paulo H. E. Falsetti, Leticia V. Savazi, Tao He, Alexandra V. Bardakova, Aida V. Rudakova, Jie Tian, Alexei V. Emeline, Osmando F. Lopes, Antonio Otavio T. Patrocínio, Jia Hong Pan, Caue Ribeiro, Detlef W. Bahnemann   +16 more
wiley   +1 more source

Photonic microwave harmonic generator driven by an optoelectronic ring oscillator [PDF]

, 2007
We describe a new architecture to generate microwave signals by optical means. Our system combines the advantages of two techniques: frequency multipliers and loop oscillators.
Le Kernec, Arnaud, Mollier, Jean-Claude, Varón-Durán, Margarita   +2 more
core   +1 more source

Engineering Porous Hollow Metal‐Poly(Heptazine Imide) Spheres: An Optimized Synthetic Strategy for Controlling Surface, Morphology, and Properties

Advanced Functional Materials, EarlyView.
Hollow poly(heptazine imide) spheres are prepared through a novel approach that integrates hard templating with ionothermal synthesis. This method enables precise control over surface area, pore volume, hydrophilicity, light absorption, band position, and metal composition. These tunable properties facilitate the customized design of semiconductors for
Lingli Ni, Erik Troschke, Henrik Vorwerk, Shiva Shahbazi Avarvand, Andreas Stihl, Nadzeya Brezhneva, Marius Hermesdorf, Desirée Leistenschneider, Felix H. Schacher, Jacob Schneidewind, Martin Oschatz   +10 more
wiley   +1 more source

Bi2O2Se/Ta2NiSe5 Tunneling Heterojunction for High‐Performance, Polarization‐Sensitive, and Broadband Infrared Photodetector

Advanced Electronic Materials
New technologies such as autonomous driving, and machine vision keep pushing the photodetectors to acquire a comprehensive high performance including high responsivity, fast response, low detection limit, polarization sensitivity, and broadband ...
Fang Yang, Yuanfang Yu, Xinglei Zhang, Zhihao Qu, Zhaofu Chen, Shizheng Wang, Yinan Wang, Ting Zheng, Weiwei Zhao, Junpeng Lu, Hongwei Liu   +10 more
doaj   +1 more source