Results 111 to 120 of about 34,337 (296)

When Cubic is Not Isotropic: Phonon–Exciton Decoupling in CuInSnS4 Single Crystals

Advanced Optical Materials, EarlyView.
A cubic CuInSnS4 crystal does not fully play by cubic rules. While phonons follow the average iso‐tropic lattice symmetry, the disorder‐localized excitons break away, showing strong, and reproduci‐ble polarization‐dependent emission. This work shows how intrinsic cation disorder can turn a mac‐roscopically cubic material into a source of hidden ...
Lara Kim Linke, Yvonne Tomm, Xinyun Liu, Galina Gurieva, Daniel M. Többens, Pardis Adams, Michel Calame, Ryan W. Crisp, Jessica Boland, Seán Kavanagh, Susan Schorr, Mirjana Dimitrievska   +11 more
wiley   +1 more source

Two‐dimensional heterostructure promoted infrared photodetection devices

InfoMat, 2019
It is a rapidly developed subject in expanding the fundamental properties and application of two‐dimensional (2D) materials. The weak van der Waals interaction in 2D materials inspired researchers to explore 2D heterostructures (2DHs) based broadband ...
Gaofeng Rao, Xuepeng Wang, Yang Wang, Peihua Wangyang, Chaoyi Yan, Junwei Chu, Lanxin Xue, Chuanhui Gong, Jianwen Huang, Jie Xiong, Yanrong Li   +10 more
doaj   +1 more source

Mono‐ and Bilayer MoS2 Photodetectors: High‐Performance Broadband AC Readout With Color‐Selective Noise Suppression

Advanced Optical Materials, EarlyView.
Mono‐ and bilayer MoS2 photodetectors enable wavelength‐selective AC photoresponse and optically driven capacitance modulation under visible illumination. Green excitation produces the strongest cumulative capacitive response, consistent with trap‐mediated charge accumulation at mono/bilayer and metal–MoS2 interfaces.
Pegah Zandi, Mengqi Fang, Arindam Phani, Muhammad Toyabur Rahman, Eui‐Hyeok Yang, Seonghwan Kim   +5 more
wiley   +1 more source

Circularly Polarized Red‐NIR Emission With High Dissymmetry Factor From Achiral [Mo6I8(OCOC2F5)6]2− Cluster Anion Embedded in a Bent‐Core Liquid Crystal Host

Advanced Optical Materials, EarlyView.
Associating a chiral bent core liquid crystal molecule, that self‐assembles into helical nanofilaments, with an achiral red‐NIR phosphorescent octahedral molybdenum cluster produces a hybrid material exhibiting efficient red‐NIR circularly polarized emission under UV excitation.
Jeanne Rebours, Shamima Akhter, Md Kamrul Hasan, Serge Paofai, Maria Amela‐Cortes, Marianne Estelle Prévôt, Yann Molard   +6 more
wiley   +1 more source

High-Performance 4H-SiC-Based Metal-Insulator-Semiconductor Ultraviolet Photodetectors With SiO2 and Al2O3/SiO2 Films

, 2011
4H-SiC-based metal-insulator-semiconductor (MIS) ultraviolet (UV) photodetectors with thermally grown SiO2 and evaporated Al2O3/SiO2 (A/S) films are fabricated and demonstrated as normally-off and normally-on mode devices, respectively.
Zhengyun Wu, Wanshun Zhao, Dong, Lin, Zeng, Yiping, Wu, Zhengyun, Yiping Zeng, 吴正云, Zhang, F.(fzhang@semi.ac.cn), Xingfang Liu, Liu Zheng, Zhao, Wanshun, Sun, Guosheng, Liu, Xingfang, Feng Zhang, Lin Dong, Guosheng Sun, Lei Wang, Zheng, Liu, Huang, Huolin, Huolin Huang, Wang, Lei, Guoguo Yan, Zhang, Feng, Yan, Guoguo   +23 more
core  

ZnO Quantum Dot Decorated Zn2SnO4 Nanowire Heterojunction Photodetectors with Drastic Performance Enhancement and Flexible Ultraviolet Image Sensors

, 2017
Here we report the fabrication of high-performance ultraviolet photodetectors based on a heterojunction device structure in which ZnO quantum dots were used to decorate Zn2SnO4 nanowires. Systematic investigations have shown their ultrahigh light-to-dark
Ludong Li, Gu, Leilei, Li, Ludong, Guozhen Shen, Fan, Zhiyong, Shen, Guozhen, Zheng Lou, Zhiyong Fan, Leilei Gu, Lou, Zheng   +9 more
core   +1 more source

Self‐Powered Visible‐Blind Graphene/NiO/ZnO UV‐C Photodiodes

Advanced Optical Materials, EarlyView.
“A scalable architecture for self‐powered UV‐C photodiodes integrates defect‐engineered p‐NiO/n‐ZnO heterojunctions with highly UV‐C transparent graphene anodes. The type‐II band alignment combined with the built‐in electrical field enables robust zero‐bias charge separation.
Umut Kaya, Leon Lörcher, Yasaman Jarrahizadeh, Axel Lorke, Wolfgang Mertin, Gerd Bacher   +5 more
wiley   +1 more source

Recent Advanced Photodetectors Coupling Optical Structure

Photonics
Photodetectors are critical components in a wide range of applications, including military, communications, medical, and aerospace fields. With ongoing advancements in optoelectronics, the strategy of integrating multiple optical structures with ...
Yangye Lin, Shuo Zhang
doaj   +1 more source

Red‐Sensitive Photopolymerizable Glass for Fabrication of Holographic Optical Elements

Advanced Optical Materials, EarlyView.
This study presents a novel photopolymerizable glass capable of optical patterning using red‐wavelength laser exposure. Red‐light sensitivity was achieved through the incorporation of a photoinitiating system composed of methylene blue (MB) and N‐phenylglycine (NPG).
Jamshed Aftab, Izabela Naydenova, Tatsiana Mikulchyk   +2 more
wiley   +1 more source

Advances in Electroactive Liquid Crystal Elastomers for Intelligent Robotics and Electronics

Advanced Robotics Research, EarlyView.
Electroactive liquid crystal elastomers (eLCEs) integrate molecular anisotropy with electrical functionality to enable programmable actuation and reconfigurable electronics. This review classifies eLCEs into robotic actuators and adaptive electronics, summarizes key actuation mechanisms, and highlights fabrication strategies that bridge materials to ...
Kavita Ramesh Rathod, Sena Chon, Jae Hyuk Hwang, Sung Hyuk Park, Woohwa Lee, Joonmyung Choi, Shi Hyeong Kim, Seung Hwan Ko, Changsoon Choi, Seon Jeong Kim, Dong‐Gyun Kim, Habeom Lee, Kyung Gook Cho, Woon‐Hong Yeo, Hyun Kim   +14 more
wiley   +1 more source