Results 41 to 50 of about 211,716 (291)
Revista de Investigaciones Universidad del Quindío, 2017 En este trabajo se presenta la automatización de un control electrónico digital para la caracterización zonal de materiales semiconductores, por medio de la técnica de Fotorreflectancia (FR) a temperatura ambiente.
J. A. Acevedo-Londoño +2 more
doaj +1 more source
Theory of self-diffusion in GaAs
, 1996 Ab initio molecular dynamics simulations are employed to investigate the dominant migration mechanism of the gallium vacancy in gaas as well as to assess its free energy of formation and the rate constant of gallium self-diffusion.
Bockstedte, Michel, Scheffler, Matthias
core +2 more sources
Advanced Functional Materials, EarlyView.The layer‐by‐layer (LbL) assembly of coordination solids, enabled by the surface‐mounted metal‐organic framework (SURMOF) platform, is on the cusp of generating the organic counterpart of the epitaxy of inorganics. The programmable and sequential SURMOF protocol, optimized by machine learning (ML), is suited for accessing high‐quality thin films of ...
Zhengtao Xu +2 more
wiley +1 more source
Kinetic calculation analysis of Ga deposition on the morphology evolution of GaAs quantum ring
Materials Research Express, 2021 GaAs Quantum Ring (QR) was gained on GaAs (001) by Droplet Epitaxy (DE), and the microscopic morphology of the GaAs samples was observed by Scanning Tunnel Microscope (STM).
Qi-Zhi Lang +3 more
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, 2007 We report first studies of long-lived oscillations in optical pump-probe measurements on GaSb-GaAs heterostructures. The oscillations arise from a photogenerated coherent longitudinal acoustic phonon wave, which travels from the top surface of GaSb ...
A. Wood +9 more
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Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics
Advanced Functional Materials, EarlyView.Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha +18 more
wiley +1 more source
Growth control of GaAs nanowires using pulsed laser deposition with arsenic over pressure
, 2007 Using pulsed laser ablation with arsenic over pressure, the growth conditions for GaAs nanowires have been systematically investigated and optimized. Arsenic over pressure with As$_2$ molecules was introduced to the system by thermal decomposition of ...
A J Hauser +5 more
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Advanced Functional Materials, EarlyView.An oral nanoplatform, MOP@T@D, which can maintain glucose homeostasis and restore islet β cells in diabetic rats is developed. It achieves efficient intestinal absorption and liver‐targeted delivery. The nanoparticle disintegrates only in response to hyperglycemia to release insulin on demand and provides antioxidant protection through selenoprotein ...
Chenxiao Chu +14 more
wiley +1 more source
The design of a DC-30 GHz GaAs pHEMT distributed power amplifier
Dianzi Jishu Yingyong, 2018 This paper describes a distributed power amplifier(DA) which was developed using 0.25 μm GaAs pHEMT process. The process of its circuit design and optimization is presented in details. Gain flatness in the low frequency range of this DA has a significant
Liu Yanpeng, Wei Qidi, Zhang Guohao
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Coherent Heteroepitaxy of Bi2Se3 on GaAs (111)B
, 2010 We report the heteroepitaxy of single crystal thin films of Bi2Se3 on the (111)B surface of GaAs by molecular beam epitaxy. We find that Bi2Se3 grows highly c-axis oriented, with an atomically sharp interface with the GaAs substrate.
A. Koser +9 more
core +1 more source