Results 21 to 30 of about 1,330 (176)

Stimulated Emission up to 2.75 µm from HgCdTe/CdHgTe QW Structure at Room Temperature

Nanomaterials, 2022
Heterostructures with thin Hg(Cd)Te/CdHgTe quantum wells (QWs) are attractive for the development of mid-infrared interband lasers. Of particular interest are room-temperature operating emitters for the short-wavelength infrared range (SWIR, typically ...
Vladimir V. Utochkin, Konstantin E. Kudryavtsev, Alexander A. Dubinov, Mikhail A. Fadeev, Vladimir V. Rumyantsev, Anna A. Razova, Egor V. Andronov, Vladimir Ya. Aleshkin, Vladimir I. Gavrilenko, Nikolay N. Mikhailov, Sergey A. Dvoretsky, Frederic Teppe, Sergey V. Morozov   +12 more
doaj   +1 more source

HgCdTe e-avalanche photodiode detector arrays

AIP Advances, 2015
Initial results on the MWIR e-APD detector arrays with 30 μm pitch fabricated on LPE grown compositionally graded p-HgCdTe epilayers are presented. High dynamic resistance times active area (R0A) product 2 × 106 Ω-cm2, low dark current density 4 nA/cm2 ...
Anand Singh, A. K. Shukla, Ravinder Pal
doaj   +1 more source

Comparative studies on the electronic transport in magnetically quantized low band gap semiconductor system

Bibechana, 2020
The Q1D system formed by magnetically confined system is attracting attention of researchers in device application because it is capable of over-looking the various techniques of fabrication difficulties and defects created by such fabrication ...
S Shrestha, C K Sarkar
doaj   +3 more sources

Diffusion of Dopants and Components in Arsenic-Implanted CdTe/HgCdTe Structures under Different High-Temperature Annealing Conditions

Proceedings, 2019
The CdTe cap layers were grown on CdZnTe-substrated HgCdTe (MCT) LPE epilayers by magnetron sputtering and thermal evaporation. The diffusion behaviors of Cd & Hg components and impurities (As or In) in these CdTe/MCT structures subjected to As ion ...
Changzhi Shi, Chun Lin, Yanfeng Wei
doaj   +1 more source

Room temperature operated HgCdTe colloidal quantum dot infrared focal plane array using shockwave dispersion technique

Applied Surface Science Advances, 2020
This paper reports development and performance evaluation of room temperature operated Mercury Cadmium Telluride (HgCdTe) colloidal quantum dot (CQD) coated Si Readout Integrated Circuit (ROIC) based Infrared (IR) Focal Plane Array (FPA).
Abhijit Chatterjee, Janani Balakrishnan, Naresh Babu Pendyala, K.S.R. Koteswara Rao   +3 more
doaj   +1 more source

Influence of infrared radiation on the electrical characteristics of the surface-barrier nanostructures based on MBE HgCdTe

EPJ Web of Conferences, 2017
Impact of illumination on the admittance of the MIS structures based on MBE Hg1-xCdxTe with graded-gap layers and single quantum wells was investigated. It is shown that for HgCdTe-based nanostructures the illumination greatly affects the capacitance and
Pociask-Bialy Malgorzata, Izhnin Ihor, Voitsekhovskii Alexander, Nesmelov Sergey, Dzyadukh Stanislav   +4 more
doaj   +1 more source

Impact of nitrogen annealing on the electrical properties of HgCdTe epitaxial films

Materials Research Express, 2023
The nitrogen annealing of HgCdTe materials grown by molecular beam epitaxy (MBE) was carried out to manipulate their electrical properties. The results show that the annealing temperature, annealing time and cooling process all have significant ...
Dapeng Jin, Songmin Zhou, Lu Chen, Chun Lin, Li He   +4 more
doaj   +1 more source

Optical Studies and Transmission Electron Microscopy of HgCdTe Quantum Well Heterostructures for Very Long Wavelength Lasers

Nanomaterials, 2021
HgTe/CdHgTe quantum well (QW) heterostructures have attracted a lot of interest recently due to insights they provided towards the physics of topological insulators and massless Dirac fermions.
Vladimir V. Rumyantsev, Anna A. Razova, Leonid S. Bovkun, Dmitriy A. Tatarskiy, Vladimir Y. Mikhailovskii, Maksim S. Zholudev, Anton V. Ikonnikov, Tatyana A. Uaman Svetikova, Kirill V. Maremyanin, Vladimir V. Utochkin, Mikhail A. Fadeev, Vladimir G. Remesnik, Vladimir Y. Aleshkin, Nikolay N. Mikhailov, Sergey A. Dvoretsky, Marek Potemski, Milan Orlita, Vladimir I. Gavrilenko, Sergey V. Morozov   +18 more
doaj   +1 more source

Atomic Tuning of Metal‐Support Interactions for Pathway‐Selective CO2 Photoreduction on TiO2

Advanced Science, EarlyView.
Single‐atom Fe and Cu catalysts anchored on TiO2 steer photocatalytic CO2 reduction toward distinct pathways. Fe sites favor rapid *CO desorption and selective CO formation, whereas Cu sites stabilize *CHO intermediates, enabling deep reduction and C─C coupling. Combined spectroscopy and DFT calculations reveal how metal–support interactions and oxygen
Dongyun Kim, Wonjae Ko, Byoung‐Hoon Lee, Sanghoon Kim, Yun Do Kim, Hyunsoo Ahn, Yoon Jung, Chan Woo Lee, Kug‐Seung Lee, Eunhee Gong, Junho Lee, Minho Kim, Taeghwan Hyeon, Su‐Il In   +13 more
wiley   +1 more source

Disclosing the carrier distributions in ion-implanted HgCdTe p–n junctions with scanning capacitance microscopy

AIP Advances
Ion implantation doping is the primary method for forming p–n junctions in HgCdTe. However, the doping and activation in HgCdTe are influenced by various complex factors, leading to inconsistencies between the actual carriers and the distribution of ...
Zhaoyang Huang, Chun Lin, Hao Xie, Rui Xin, Xiang Li, Tianxin Li   +5 more
doaj   +1 more source