Results 31 to 40 of about 19,972 (281)

Electronic Structure of Oxide Interfaces: A Comparative Analysis of GdTiO$_3$/SrTiO$_3$ and LaAlO$_3$/SrTiO$_3$ Interfaces [PDF]

, 2015
Emergent phases in the two-dimensional electron gas (2DEG) formed at the interface between two insulating oxides have attracted great attention in the past decade.
Banerjee, Hrishit, Banerjee, Sumilan, Randeria, Mohit, Saha-Dasgupta, Tanusri   +3 more
core   +3 more sources

Population-inversion and gain estimates for a semiconductor TASER [PDF]

, 2001
We have investigated a solid-state design advanced (see Soref et al, in SPIE Proceedings, vol. 3795, p, 516, 1999) to achieve a terahertz-amplification-by-the-stimulated-emision-of-radiation (TASER), The original design was based on light-to heavy-hole ...
Harrison, P., Soref, R.A.
core   +1 more source

Type-II GaAsSb/GaAsN superlattice solar cells [PDF]

Physics, Simulation, and Photonic Engineering of Photovoltaic Devices VII, 2018
Dilute nitride GaAsSbN is an ideal candidate to form the 1-1.15 eV lattice-matched sub-cell that would significantly enhance the performance of 3- and 4-junction solar cells. However, growth problems inherent to this quaternary alloy lead typically to a poor crystal quality that limits its applicability. Better compositional control and crystal quality
Gonzalo, A., Utrilla Lomas, Antonio David, Aeberhard, Urs, Llorens, J.M., Alén Millán, Benito, Fuertes Marrón, David, Guzmán, A., Hierro, A., Ulloa Herrero, José María   +8 more
openaire   +3 more sources

Study of thermal stresses in InAs/GaSb type-II superlattice focal plane arrays via multi-scale finite element modeling

AIP Advances
The thermal stress, significantly impacting the performance of infrared detectors, is typically caused by the thermal mismatch between adjacent materials.
Yong Xue, Qing Xu, Min Huang, Zhen Wang, Zhaoming Liang, Nan Wang, Zhizhong Bai, Jianxin Chen   +7 more
doaj   +1 more source

Bandgap Engineering in InAs/GaSb II Superlattices: Modulation and Vacancy Defects Analysis

Photonics
The computational analysis of InAs/GaSb type-II superlattices utilizing density functional theory (DFT) with pseudopotentials has been performed. The PBE+U method was employed to correct for the strong correlation effects of the P orbitals of In, As, Ga,
Yan Jiang, Yulin Zhou, Zongyao Zhang, Zhengdao Li, Liyuan Jiang, Xinxin Zhao, Jianbao Wu   +6 more
doaj   +1 more source

Structural, Optical and Electrical Characterizations of Midwave Infrared Ga-Free Type-II InAs/InAsSb Superlattice Barrier Photodetector

Photonics, 2020
In this paper, a full set of structural, optical and electrical characterizations performed on midwave infrared barrier detectors based on a Ga-free InAs/InAsSb type-II superlattice, grown by molecular beam epitaxy (MBE) on a GaSb substrate, are reported
U. Zavala-Moran, M. Bouschet, J. P. Perez, R. Alchaar, S. Bernhardt, I. Ribet-Mohamed, F. de Anda-Salazar, P. Christol   +7 more
doaj   +1 more source

Demonstration of MOCVD-Grown Long-Wavelength Infrared InAs/GaSb Superlattice Focal Plane Array

IEEE Access, 2021
High-performance InAs/GaSb type-II superlattice infrared detectors and focal plane arrays (FPAs) are normally grown by molecular beam epitaxy (MBE).
Yan Teng, Xiujun Hao, Hong Zhu, He Zhu, Jiafeng Liu, Yunlong Huai, Meng Li, Ming Liu, Weirong Xing, Baile Chen, Zhuo Deng, Yong Huang   +11 more
doaj   +1 more source

Three-photon states in nonlinear crystal superlattices

, 2011
It has been a longstanding goal in quantum optics to realize controllable sources generating joint multiphoton states, particularly, photon triplet with arbitrary spectral characteristics.
A. B. U’Ren, D. A. Antonosyan, D. A. Antonosyan, D. N. Klyshko, G. Yu. Kryuchkyan, M. A. Nielsen, T. V. Gevorgyan, W. Horsthemke   +7 more
core   +1 more source

Kinetic Insights into Precursor‐Assisted Soft Sphere Close Packing Revealed by In Situ GISAXS with Implications for Gas Sensing

Advanced Functional Materials, EarlyView.
The versatile precursor‐assisted soft sphere close packing during slot‐die coating is investigated with in situ X‐ray scattering. The soft crystallization pathways towards a close packing involve multistep structural transitions such as surface nucleation, in‐plane, and out‐of‐plane crystallization.
Guangjiu Pan, Wenhe Xie, Suzhe Liang, Ting Tian, Shanshan Yin, Lixing Li, Altantulga Buyan‐Arivjikh, Jinsheng Zhang, Thomas Baier, Zhuijun Xu, Matthias Schwartzkopf, Sarathlal Koyiloth Vayalil, Stephan V. Roth, Yonghui Deng, Peter Müller‐Buschbaum   +14 more
wiley   +1 more source

Low Noise Short Wavelength Infrared Avalanche Photodetector Using SB-Based Strained Layer Superlattice

Photonics, 2021
We demonstrate low noise short wavelength infrared (SWIR) Sb-based type II superlattice (T2SL) avalanche photodiodes (APDs). The SWIR GaSb/(AlAsSb/GaSb) APD structure was designed based on impact ionization engineering and grown by molecular beam epitaxy
Arash Dehzangi, Jiakai Li, Manijeh Razeghi   +2 more
doaj   +1 more source