Results 81 to 90 of about 272,034 (235)

Interfacial Synergy in a Band‐Aligned Low‐Dimensional Heterojunction Toward Broadband Photodetection

Advanced Science, EarlyView.
Monolithically integrating sensing and communication, a Ta2NiSe5/Sb2Te3 heterojunction achieves visible‐to‐near‐infrared photovoltaics with high‐speed terahertz photo‐thermoelectric detection at room temperature. By engineering a Type‐II van der Waals heterojunction, we overcome the intrinsic spectral limitations and disparate physical requirements of ...
Yuanfeng Wen, Kening Xiao, Yao Yang, Mengjie Jiang, Libo Zhang, Shicong Hou, Hang Ma, Yunduo Zhang, Wenqi Mo, Yiran Tan, Bolang Peng, Jinqiu Huang, Xueyuan Wei, Chunming Liu, Bangjian Zhao, Jiale He, Qing Li, Songyuan Ding, Yi Zhou, Guanhai Li, Xiaoshuang Chen   +20 more
wiley   +1 more source

Visible–near‐infrared wavelength‐selective photodetection and imaging based on floating‐gate phototransistors

InfoMat
Wavelength selective imaging has a wide range of applications in image recognition and other application scenarios, which can effectively improve the recognition rate of objects.
Bo Wang, Ningning Zhang, Jie You, Xin Wu, Yichi Zhang, Tian Miao, Yang Liu, Zuimin Jiang, Zhenyang Zhong, Hao Sun, Hui Guo, Huiyong Hu, Liming Wang, Zhangming Zhu   +13 more
doaj   +1 more source

Room temperature triggered single-photon source in the near infrared

, 2007
We report the realization of a solid-state triggered single-photon source with narrow emission in the near infrared at room temperature. It is based on the photoluminescence of a single nickel-nitrogen NE8 colour centre in a chemical vapour deposited ...
Alléaume R, Bennett C H Brassard G, E Wu, F Treussart, G Roger, Gaebel T, Grangier P, H Zeng, J R Rabeau, J-F Roch, Nadolinny A, P Grangier, S Prawer, Soujaeff A, Wang Q, Zaitsev A M   +15 more
core   +2 more sources

From Design to Prototype: High‐Sensitivity Tri‐Mode Operation Photodetectors Based on 1T‐2H Hybrid MoS2

Advanced Science, EarlyView.
This work demonstrates a phase‐engineered MoS2 photodetector that dynamically switches among photocapacitive (PCC), photovoltaic (PV), and photoconductive (PC) modes. By transforming the traditionally parasitic capacitance into an active signal source, the device achieves self‐powered, high‐sensitivity detection with a fast response of 19.2 ms, and a ...
Xinyu Li, Daxiu Tang, Jiaxin Guo, Xiao Zhang, Sihan Liu, Yaojun Yu, Qianqian Cheng, Chengwei Gao, Xiaoning Guan, Pengfei Lu, Fei Zhuge, Ying Xie, Changgui Lin, Xiang Shen, Haohai Yu, Huaijin Zhang, Jiyang Wang   +16 more
wiley   +1 more source

Broadband Interferenceless Perfect Absorption in Hexagonal Boron Nitride and Lithium Fluoride Hyperbolic Metamaterial

Advanced Photonics Research
Interferenceless perfect absorption holds significant promise for applications in photodetection, photovoltaics, and medical diagnostics. In this study, an effective composite metamaterial with nanoscale thickness, composed of hexagonal Boron nitride ...
Muhammad Imran, Xiangyu Kong, Muhammad Zeeshan Khan, Naeem Ullah, Aljawhara H. Almuqrin, Yibin Tian, Rujiang Li   +6 more
doaj   +1 more source

Enhancing image contrast using coherent states and photon number resolving detectors

, 2010
We experimentally map the transverse profile of diffraction-limited beams using photon-number-resolving detectors. We observe strong compression of diffracted beam profiles for high detected photon number.
A. J. Pearlman, A. Ling, A. Migdall, Bentley, Bollinger, Boto, C. F. Wildfeuer, Caves, Dowling, D’Angelo, E. A. Goldschmidt, Giovannetti, Glasser, Hemmer, J. Fan, Khoury, Lloyd, Miller, Nagata, Rubin, Sparrow, Treps, Wildfeuer   +22 more
core   +1 more source

Emerging Device Applications From Strong Light–Matter Interactions in 2D Materials

Advanced Science, EarlyView.
Two‐dimensional semiconductors enable extremely compact optoelectronic devices such as solar cells, sensors, LEDs, and lasers. Their strong light–matter interactions allow efficient light emission, detection, and energy conversion. This review article discusses the recent progress in integrating these materials with optical cavities and nanostructures ...
Janani Archana K, Kumar Shwetabh, Reyas Ali, Ramji Velayutham, Koustav Das, Abhishek Mondal, Prashant Kumar, Surendra B. Anantharaman   +7 more
wiley   +1 more source

Dirac Surface‐State Driven Broad Spectral Band Low Quantum Energy Photoresponse in Quaternary Topological BiSbSe2Te

Advanced Science, EarlyView.
Quaternary topological BiSbSe2Te are synthesized and demonstrates a broad spectral band photoresponse, ranging from infrared to terahertz and to millimeter waves, with a particular excellence on detection of low quantum energy terahertz photons. The observed photoresponse is attributed to the excitation of plasmonic nonequilibrium electrons originating
Tianning Zhang, Jinchao Tong, Jiantian Zhang, Peng Yu, Heng Luo, Luo Yan, Boyu Yang, Tiantian Huang, Junhui Ran, Yan Chen, Liujiang Zhou, Xin Chen, Ning Dai, Jianlu Wang, Junhao Chu   +14 more
wiley   +1 more source

Highly Responsive and Self-Powered Photodetector Based on PtSe₂/MoS₂ Heterostructure

Molecules
In recent years, 2D materials and their heterostructures have started to offer an ideal platform for high-performance photodetection devices. In this work, a highly responsive, self-powered photodetector based on PtSe2/MoS2 van der Waals heterostructure ...
Haoran Li, Zhibin Yang
doaj   +1 more source

Highly Sensitive Heterojunction‐Gated Phototransistor With Detection Wavelength Ranged From 350 to 1700 Nm

Advanced Science, EarlyView.
This work demonstrates a heterojunction‐gated infrared phototransistor for broadband detection from 350 to 1700 nm. By suppressing defect states on nonpolar (100) facets of large PbS quantum dots via hybrid ligand passivation, the device achieves a room‐temperature detectivity of 5.7 × 1013 Jones at 1650 nm.
Hongkun Duan, Wenyu Zhang, Tao Luo, XiaoLu Xia, Qianxi Yang, Ying Yan, Shengmei Gao, Xitian Yin, Yixiao Niu, Zhiyu Zhao, Jianbing Zhang, Haobin He, Jiang Tang, Ying Wang, Zhiyong Zhang   +14 more
wiley   +1 more source