Results 21 to 30 of about 26,264 (258)

Graphene-Coated Nanowire Waveguides and Their Applications

open access: yesNanomaterials, 2020
In recent years, graphene-coated nanowires (GCNWs) have attracted considerable research interest due to the unprecedented optical properties of graphene in terahertz (THz) and mid-infrared bands.
Da Teng, Kai Wang, Zhe Li
doaj   +1 more source

InAs/InAsSb Strain-Balanced Superlattices for Longwave Infrared Detectors. [PDF]

open access: yesSensors (Basel), 2019
The InAs/InAsSb type-II superlattices (T2SLs) grown on a GaSb buffer layer and GaAs substrates were theoretically investigated. Due to the stability at high operating temperatures, T2SLs could be used for detectors operating in the longwave infrared ...
Manyk T   +4 more
europepmc   +2 more sources

Infrared Photodetection from 2D/3D van der Waals Heterostructures

open access: yesNanomaterials, 2023
An infrared photodetector is a critical component that detects, identifies, and tracks complex targets in a detection system. Infrared photodetectors based on 3D bulk materials are widely applied in national defense, military, communications, and ...
Qianying Tang   +12 more
doaj   +1 more source

GaN/AlN Multi-Quantum Wells Infrared Detector with Short-Wave Infrared Response at Room Temperature

open access: yesSensors, 2022
GaN-based quantum well infrared detectors can make up for the weakness of GaAs-based quantum well infrared detectors for short-wave infrared detection.
Fengqiu Jiang, Yuyu Bu
doaj   +1 more source

Influence of Welding Speed on the Microstructure and Mechanical Properties of Electron Beam-Welded Joints of TC4 and 4J29 Sheets using Cu/Nb Multi-Interlayers

open access: yesMetals, 2018
Dissimilar metal joining between titanium and kovar alloys was conducted using electron beam welding. Metallurgical bonding of titanium alloys and kovar alloys was achieved by using a Cu/Nb multi-interlayer.
Defeng Mo   +4 more
doaj   +1 more source

Effect of thermal annealing on carrier localization and efficiency of spin detection in GaAsSb epilayers grown on InP

open access: yesAIP Advances, 2018
The effect of the thermal annealing on the optical and spin properties in GaAs0.44Sb0.56 epilayers grown on InP was investigated via photoreflectance, power-dependent and time-resolved photoluminescence spectroscopy as well as optical orientation ...
Bin Zhang   +5 more
doaj   +1 more source

Optical Properties of Type-Ⅱ InAs/GaSb Superlattices for Wide Band Infrared Detection [PDF]

open access: yesHangkong bingqi, 2021
InAs/GaSb type-Ⅱ superlattices (T2SLs) are considered as high-quality material for the third-generation infrared detectors due to the special energy band structure and mature material growth technology.
Li Hongkai, Li Mo, Dong Shangwei, Hong Jin, Chen Ye, Jing Chengbin, Yue Fangyu, Chu Junhao
doaj   +1 more source

Effect of annealing on the electrophysical properties of CdTe/HgCdTe passivation interface by the capacitance–voltage characteristics of the metal–insulator–semiconductor structures

open access: yesAIP Advances, 2020
The capacitance–voltage characteristics of metal–insulator–semiconductor structures based on Hg1−xCdxTe (x = 0.218) with CdTe passivation are studied before and after the passivation annealing process.
Xi Wang   +13 more
doaj   +1 more source

2.6 μm MBE grown InGaAs detectors with dark current of SRH and TAT

open access: yesAIP Advances, 2014
We fabricate 2.6 μm InGaAs photodetectors by MBE technology and study its dark current mechanisms. Deep-level transient spectroscopy (DLTS) demonstrates a deep-level trap located at Ec - 0.25 eV in the absorption layer.
Xiaoli Ji   +8 more
doaj   +1 more source

An Adjacent Differential Statistics Method for IRFPA Nonuniformity Correction

open access: yesIEEE Photonics Journal, 2013
In this paper, a novel scene-based nonuniformity correction (SBNUC) method using statistics between adjacent detectors for infrared focal-plane array (IRFPA) is proposed. Differential operation is designed as a decorrelation process to minimize the scene
Lixiang Geng, Qian Chen, Weixian Qian
doaj   +1 more source

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