Results 51 to 60 of about 1,328 (127)

Performance Optimization of Hg_1-xCd_xTe Photovoltaic Detectors Under Strong Illumination Considering Temperature and Wavelength Dependencies

IEEE Photonics Journal
Currently, HgCdTe detectors are advancing towards very long wavelengths and room temperature operation. However, as operating temperatures and illumination intensity increase, the performance of these detectors deteriorates, evidenced by increased dark ...
Jiahui Chen, Wangyong Chen, Linlin Cai, Pengling Yang, Dahui Wang, Manling Shen, Xiangyang Li, Hui Qiao   +7 more
doaj   +1 more source

Infrared Nanocrystals for Space Application: Hardness to Irradiations

Advanced Functional Materials, Volume 36, Issue 37, 7 May 2026.
This article investigates infrared HgTe nanocrystals under X‐ray and ion irradiation, revealing remarkable radiation hardness. It uncovers distinct degradation mechanisms and shows that the nanomaterial outperforms integrated electronics. The results position colloidal nanocrystals as promising candidates for resilient space and harsh‐environment ...
Alexandre Neyret, Dario Mastrippolito, Bingbing Xia, Adrien Khalili, Maxime Lebreton, Giorgia Strobbia, Albin Colle, Marco Paye, Mariarosa Cavallo, Erwan Bossavit, Claire Abadie, Yoann Prado, Debora Pierucci, Victor Parahyba, Francois Coursaget, David Darson, Emrick Briand, Ian Vickridge, Stephane Demiguel, Sebastien Massenot, Jean‐Marc Belloir, Vincent Goiffon, Emmanuel Lhuillier   +22 more
wiley   +1 more source

Reconfigurable, Temperature Resilient Phase‐Change Metasurfaces Fabricated via High Throughput Nanoimprinting Lithography

Advanced Science, Volume 13, Issue 27, 13 May 2026.
ABSTRACT The combination of metasurfaces with chalcogenide phase‐change materials is a highly promising route toward the development of multifunctional and reconfigurable nanophotonic devices. However, their transition into real‐world devices is hindered by several technological challenges. This includes, amongst others, the lack of large area photonic
Carlota de Ruiz de Galarreta, Yinghao Zhao, Jose Mendoza‐Carreño, José M. Caicedo, José Santiso, C. David Wright, M. Isabel Alonso, Jiafang Li, Agustin Mihi   +8 more
wiley   +1 more source

Formation Dirac point and the topological surface states for HgCdTe-QW and mixed 3D HgCdTe TI

EPJ Web of Conferences, 2017
In this paper the results of numerical calculations based on the finite difference method (FDM) for the 2D and 3D TI with and without uniaxial tensile strain for mixed Hg1-xCdxTe structures are presented.
Marchewka Michał
doaj   +1 more source

Addressing Bottlenecks to Achieve High‐Energy Sodium‐Ion Cells Using Tin Anodes

Advanced Energy Materials, Volume 16, Issue 17, 6 May 2026.
The challenges in coupling high voltage cathode with Sn‐alloying anode or in anode‐free cell, using glyme based electrolytes to realize high energy Na‐ion cells are reported. Surface protection strategy such as SnO coating on Sn or trapping the parasitic species from poisoning the anode, helps improving the cyclability, with ∼100% capacity retention ...
Parth Desai, Harshita Lohani, Wang Yu, François Ribot, Guillaume P. Laurent, Julien Bonefacino, Hervé Vezin, Dominique Foix, Carine Davoisne, Biao Zhang, Jean‐Marie Tarascon, Sathiya Mariyappan   +11 more
wiley   +1 more source

Laser Absorption Shock Tube Study of C1 to C4 n‐Alkyl Formate Pyrolysis

International Journal of Chemical Kinetics, Volume 58, Issue 5, Page 199-209, May 2026.
ABSTRACT n$n$‐Alkyl formates are considered as potential alternative fuels or fuel additives. While their oxidation chemistry has been investigated intensely, their pyrolysis chemistry requires more experimental insights. The present work utilizes shock tube experiments in combination with infrared laser absorption measurements to obtain information ...
Malte Döntgen, Alina Wildenberg, Karl Alexander Heufer   +2 more
wiley   +1 more source

Commentary: JWST near-infrared detector degradation— finding the problem, fixing the problem, and moving forward

AIP Advances, 2012
The James Webb Space Telescope (JWST) is the successor to the Hubble Space Telescope. JWST will be an infrared-optimized telescope, with an approximately 6.5 m diameter primary mirror, that is located at the Sun-Earth L2 Lagrange point.
Bernard J. Rauscher, Carl Stahle, Robert J. Hill, Matthew Greenhouse, James Beletic, Sachidananda Babu, Peter Blake, Keith Cleveland, Emmanuel Cofie, Bente Eegholm, C. W. Engelbracht, Donald N. B. Hall, Alan Hoffman, Basil Jeffers, Christine Jhabvala, Randy A. Kimble, Stanley Kohn, Robert Kopp, Don Lee, Henning Leidecker, Don Lindler, Robert E. McMurray Jr., Karl Misselt, D. Brent Mott, Raymond Ohl, Judith L. Pipher, Eric Piquette, Dan Polis, Jim Pontius, Marcia Rieke, Roger Smith, W. E. Tennant, Liqin Wang, Yiting Wen, Christopher N. A. Willmer, Majid Zandian   +35 more
doaj   +1 more source

Cyclic nanoindentation studies of HgCdTe epitaxial films

Materials Research Express, 2020
Hg _1− _x Cd _x Te ( x ∼0.29) epitaxial films have been subjected to cyclic nanoindentation using spherical indenter from tribological aspects related to the development of polishing process for preparing defect free surface.
Hemant Kumar Sharma, Rajesh Kumar Sharma, Raghvendra Sahai Saxena, Aditya Gokhale, Rajesh Prasad   +4 more
doaj   +1 more source

Ion Beam Nanostructuring of HgCdTe Ternary Compound

Nanoscale Research Letters, 2017
Systematic study of mercury cadmium telluride thin films subjected to the ion beam bombardment was carried out. The evolution of surface morphology of (111) Hg1 − x Cd x Te (x ~ 0.223) epilayers due to 100 keV B+ and Ag+ ion irradiation was studied by ...
Aleksey B. Smirnov, Rada K. Savkina, Ruslana S. Udovytska, Oleksandr I. Gudymenko, Vasyl P. Kladko, Andrii A. Korchovyi   +5 more
doaj   +1 more source

Performances of a HGCDTE APD based direct detection lidar at 2 μm. Application to dial measurements

EPJ Web of Conferences, 2018
A lidar receiver with a direct detection chain adapted to a HgCdTe APD based detector with electric cooling is associated to a 2.05 μm Ho :YLF pulsed dual wavelength single mode transmitter to provide the first atmospheric lidar measurements using this ...
Gibert Fabien, Dumas Arnaud, Rothman Johan, Edouart Dimitri, Cénac Claire, Pellegrino Jessica   +5 more
doaj   +1 more source