Results 41 to 50 of about 19,972 (281)

Direct growth of InAsGaSb type II superlattice photodiodes on silicon substrates [PDF]

, 2017
p-i-n InAs/GaSb type II superlattice photodiodes were directly grown on silicon substrates. The superlattice structures were grown monolithically on miscut Si substrates via a 10 nm AlSb nucleation layer.
Gonzalez Burguete, CS
core  

Chemically triggered formation of two-dimensional epitaxial quantum dot superlattices [PDF]

, 2016
Two dimensional superlattices of epitaxially connected quantum dots enable size-quantization effects to be combined with high charge carrier mobilities, an essential prerequisite for highly performing QD devices based on charge transport.
De Roo, Jonathan, Dendooven, Jolien, Detavernier, Christophe, Drijvers, Emile, Hens, Zeger, Infante, Ivan, Solano Minuesa, Eduardo, ten Brinck, Stephanie, Walravens, Willem   +8 more
core   +1 more source

Clean‐Limit 2D Superconductivity in a Thick Exfoliated Kagome Film

Advanced Functional Materials, EarlyView.
This study reports clean‐limit 2D superconductivity in a thick kagome system, analogous to the 3D case. It observes a drop in superfluid stiffness near the superconducting transition and a cusp‐like feature in the angular dependence of the upper critical field.
Fei Sun, Andrea Capa Salinas, Stephen D. Wilson, Haijing Zhang   +3 more
wiley   +1 more source

LWIR Interband Cascade Photodetectors with InAs/InAsSb II Type Superlattice Absorber

Proceedings
The properties of long-wave infrared (LWIR) interband cascade photodetectors (ICIPs) with type II superlattices (T2SLs) and gallium-free (Ga-free) InAs/InAsSb absorbers were determined using photoluminescence (PL) and spectral response (SR) measurements.
Krzysztof Murawski, Kinga Majkowycz, Tetiana Manyk, Małgorzata Kopytko, Krystian Michalczewski, Jarosław Jureńczyk, Łukasz Kubiszyn, Bartłomiej Seredyński, Piotr Martyniuk   +8 more
doaj   +1 more source

Control of Nitrogen Inhomogeneities in Type-I and Type-II GaAsSbN Superlattices for Solar Cell Devices

Nanomaterials, 2019
Superlattice structures (SLs) with type-II (GaAsSb/GaAsN) and -I (GaAsSbN/GaAs) band alignments have received a great deal of attention for multijunction solar cell (MJSC) applications, as they present a strongly intensified luminescence and a ...
Nazaret Ruiz, Verónica Braza, Alicia Gonzalo, Daniel Fernández, Teresa Ben, Sara Flores, José María Ulloa, David González   +7 more
doaj   +1 more source

Thermal conductivity of InAs/GaSb superlattice

, 2011
The cross-plane thermal conductivity of a type II InAs/GaSb superlattice (T2SL) is measured from 13 K to 300 K using the 3{\omega} method. Thermal conductivity is reduced by up to 2 orders of magnitude relative to the GaSb bulk substrate. The low thermal
Grayson, M., Nguyen, B. -M., Razeghi, M., Zhou, Chuanle   +3 more
core   +1 more source

Fermi Surface Nesting and Anomalous Hall Effect in Magnetically Frustrated Mn2PdIn

Advanced Functional Materials, EarlyView.
Mn2PdIn, a frustrated inverse Heusler alloy, showing electronic‐structure driven anomalous Hall effect with Weyl crossings, Fermi‐surface nesting and near‐zero magnetization ideal for low‐magnetization spintronics. Abstract Noncollinear magnets with near‐zero net magnetization and nontrivial bulk electronic topology hold significant promise for ...
Afsar Ahmed, Arnab Bhattacharya, Prashant Singh, Ajay Kumar, Tukai Singha, Anis Biswas, Yaroslav Mudryk, I. Das   +7 more
wiley   +1 more source

InAs/GaSb Superlattice Based Mid-Infrared Interband Cascade Photodetectors Grown on Both Native GaSb and Lattice-Mismatched GaAs Substrates

Proceedings, 2019
Electrical and optical properties of interband cascade infrared photodetectors with InAs/GaSb type-II superlattice absorbers are investigated in this work.
Klaudia Hackiewicz, Małgorzata Kopytko, Jarosław Rutkowski, Piotr Martyniuk, Łukasz Ciura   +4 more
doaj   +1 more source

Weak Topological Insulators in PbTe/SnTe Superlattices

, 2013
It is desirable to realize topological phases in artificial structures by engineering electronic band structures. In this paper, we investigate $(PbTe)_m(SnTe)_{2n-m}$ superlattices along [001] direction and find a robust weak topological insulator phase
Duan, Wenhui, Fu, Liang, Liu, Chaoxing, Liu, Junwei, Yang, Gang   +4 more
core   +2 more sources

Two‐Dimensional Materials as a Multiproperty Sensing Platform

Advanced Functional Materials, EarlyView.
Various sensing modalities enabled and/or enhanced by two‐dimensional (2D) materials are reviewed. The domains considered for sensing include: 1) optoelectronics, 2) quantum defects, 3) scanning probe microscopy, 4) nanomechanics, and 5) bio‐ and chemosensing.
Dipankar Jana, Shubhrasish Mukherjee, Dmitrii Litvinov, Magdalena Grzeszczyk, Sergey Grebenchuk, Makars Šiškins, Virgil Gavriliuc, Yihang Ouyang, Changyi Chen, Yuxuan Ye, Meng Yiming, Maciej Koperski   +11 more
wiley   +1 more source