Results 51 to 60 of about 140,358 (312)

A wide ultraviolet spectra response photodetector based on epitaxial growth of highly-oriented ε-Ga2O3 crystal on diamond substrate

Functional Diamond, 2023
In recent years, diamond has shown great potential in solar-blind ultraviolet (UV) photodetection due to its ultrawide bandgap (∼ 5.5 eV) and other superior semiconductor properties.
Qilong Yuan, Wei Wang, Wenrui Zhang, Mengting Qiu, Mingyang Yang, Zhenglin Jia, Bo Wang, Cheng-Te Lin, Kazhihito Nishimura, Keke Chang, Kuan W. A. Chee, Junfeng Cui, Nan Jiang   +12 more
doaj   +1 more source

Tailorable infrared sensing device with strain layer superlattice structure [PDF]

, 1987
An infrared photodetector is formed of a heavily doped p-type Ge sub x Si sub 1-x/Si superlattice in which x is pre-established during manufacture in the range 0 to 100 percent.
Cheng, Li-Jen
core   +1 more source

Enhancing Optoelectronic Properties in Phthalocyanine‐Based SURMOFs: Synthesis of ABAB Linkers by Avoiding Statistical Condensation with Tailored Building Blocks

Advanced Functional Materials, EarlyView.
A novel phthalocyanine (PC)‐based metal–organic framework (MOFs) is synthesized using ditopic PC linkers obtained through regioselective statistical condensation. The resulting MOF exhibits significant improvements in electronic absorption, thereby enhancing the material's performance in light harvesting and energy conversion.
Lukas S. Langer, Mareen Stahlberger, Xiaojing Liu, Yi Luo, Niklas E. Häußermann, Puja Singhvi, Yidong Liu, Olaf Fuhr, Martin Nieger, Lars Heinke, Thomas Heine, Christof Wöll, Stefan Bräse   +12 more
wiley   +1 more source

In situ detection of spatial distribution information of temperature-pH-strain of sandstone cultural relics

npj Materials Degradation
To monitor in situ the temperature, pH, and micro-strain change information of sandstone artifacts in the process of oxalic acid corrosion, the temperature, pH, and micro-strain fiber Bragg grating (FBG) sensors are developed.
Changyuan Xu, Linyang Li, Rong Hu, Huihua Wu, Lingnan Kong, Nianbing Zhong, Bo Wan, Lei Wu, Dong Lai, Yuanyuan He, Yang Liu, Xiaoling Peng, Mingfu Zhao, Quanhua Xie   +13 more
doaj   +1 more source

Consistent reporting of performances in Ga2O3 UV-C photodetectors [PDF]

APL Electronic Devices
The study addresses the lack of consistency with reporting of Ga2O3 photodetector performances and assesses the impact of illumination intensity, illumination wavelength, and voltage bias on photodetector responsivity and time response.
Fabien C. P. Massabuau, Steve Reynolds, Sean Douglas, Farnaz Hadizadeh, David Nicol   +4 more
doaj   +1 more source

Mid-wavelength infrared high operating temperature pBn photodetectors based on type-II InAs/InAsSb superlattice

AIP Advances, 2020
A high operating temperature mid-wavelength infrared pBn photodetector based on the type-II InAs/InAsSb superlattice on a GaSb substrate has been demonstrated.
Donghai Wu, Jiakai Li, Arash Dehzangi, Manijeh Razeghi   +3 more
doaj   +1 more source

Enhanced photoelectric and photothermal responses on silicon platform by plasmonic absorber and omni-schottky junction [PDF]

, 2017
Recent progresses in plasmon-induced hot electrons open up the possibility to achieve photon harvesting beyond the fundamental limit imposed by band-to-band transitions in semiconductors.
Abb, Akbari, Berini, Borkar, Brongersma, Brouckaert, Buscema, Casalino, Chalabi, Chen, Chen, Clavero, Du, Fang, Ferry, Garcia de Arquer, Goykhman, Hao, Ho, Hu, Ishii, Kannadorai, Kim, Knight, Knight, Kojori, Kurra, Lai, Li, Lin, Liu, Mailoa, Manjavacas, Michel, Muehlbrandt, Norde, Paniccia, Rogalski, Sobhani, Timurdogan, Wang, Wang, Wen, Wen, Wu, Yin, Youngblood, Yu   +47 more
core   +1 more source

Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation

Advanced Functional Materials, EarlyView.
A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar, Matthew Large, Andrea Ciavatti, Laura Basiricò, Beatrice Fraboni, Paul J. Sellin, Attila J. Mozer, Marco Petasecca, Matthew J. Griffith   +8 more
wiley   +1 more source

Closed loop fiber optic rotation sensor [PDF]

, 1987
An improved optical gyroscope is provided, of the type that passes two light components in opposite directions through an optic fiber coil, and which adds a small variable frequency to one of the light components to cancel the phase shift due to rotation
Bartman, Randall K., Goss, Willis C., Nerheim, Noble M., Youmans, Bruce R.   +3 more
core   +1 more source

Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability

Advanced Functional Materials, EarlyView.
Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong, William D. J. Tremlett, Lucy Hart, Beier Hu, Zhuoran Qiao, Patipan Sukpoonprom, Sarah Fearn, Edoardo Angela, Matilde Brunetta, Demosthenes C. Koutsogeorgis, Nikolaos Kalfagiannis, Davide Nodari, Martyn A. McLachlan, Piers R. F. Barnes, Artem A. Bakulin, Nicholas J. Long, Nicola Gasparini   +16 more
wiley   +1 more source