Results 31 to 40 of about 13,155 (214)

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

Measurements of Low Frequency Noise of Infrared Photo-Detectors with Transimpedance Detection System

Metrology and Measurement Systems, 2014
The paper presents the method and results of low-frequency noise measurements of modern mid-wavelength infrared photodetectors. A type-II InAs/GaSb superlattice based detector with nBn barrier architecture is compared with a high operating temperature ...
Ciura Łukasz, Kolek Andrzej, Gawron Waldemar, Kowalewski Andrzej, Stanaszek Dariusz   +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

HgCdTe sampling circuit

Electronics Letters, 1990
The demonstration, using HgCdTe MISFETs, of a sampling circuit with output buffer amplifier is reported. Using the circuit, correlated double sampling is demonstrated at speeds typical of those required for focal plane arrays. Using a swept sine input, the circuit's transfer function is verified.
R.A. Schiebel, J. Dodge, R. Gooch
openaire   +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

Detectors and cooling technology for direct spectroscopic biosignature characterization

, 2016
Direct spectroscopic biosignature characterization (hereafter "biosignature characterization") will be a major focus for future space observatories equipped with coronagraphs or starshades.
Canavan, Edgar R., Moseley, S. H., Rauscher, Bernard J., Sadleir, John E., Stevenson, Thomas   +4 more
core   +1 more source

Gamma radiation exposure of MCT diode arrays

, 2006
Investigations of electrical properties of long-wavelength infrared (LWIR) mercury cadmium telluride (MCT) arrays exposed to gamma-radiation have been performed.
F F Sizov, Gumenyuk-Sichevskaya J V, I O Lysiuk, J V Gumenjuk-Sichevska, Robinson H G, Rogalski A, S G Bunchuk, Sizov F F, Sizov F F, V V Zabudsky, Voitsekhovsky A V   +10 more
core   +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

Double valley Dirac fermions for 3D and 2D Hg$_{1-x}$Cd$_x$Te with strong asymmetry

, 2017
In this paper the possibility to bring about the double- valley Dirac fermions in some quantum structures is predicted. These quantum structures are: strained 3D Hg$_{1-x}$Cd$_x$Te topological insulator (TI) with strong interface inversion asymmetry and ...
Marchewka, M.
core   +1 more source