Results 21 to 30 of about 322,683 (317)

Surface evolution of native silicon oxide layer and its effects on the growth of self-assisted VLS GaAs nanowires

AIP Advances, 2019
This research focuses on the impact of native SiO2 layer evolution, occurring on the surfaces of Si(111) substrates on the morphological and structural properties of self-assisted GaAs nanowires.
Samatcha Vorathamrong, Somsak Panyakeow, Somchai Ratanathammaphan, Piyasan Praserthdam   +3 more
doaj   +1 more source

A finite element method to simulate dislocation stress: A general numerical solution for inclusion problems

AIP Advances, 2020
We developed a simple and efficient way to simulate stress from arbitrary shape dislocations within the finite element method (FEM) framework. The new method is implemented as a single-step FEM simulation using analytic solutions in an infinite medium as
Chihak Ahn, Yutaka Nishizawa, Woosung Choi   +2 more
doaj   +1 more source

Electron Spin Injection at a Schottky Contact

, 2002
We investigate theoretically electrical spin injection at a Schottky contact between a spin-polarized electrode and a non-magnetic semiconductor.
A.F. Isakovic, A.G. Aronov, A.T. Hanbicki, B.T. Jonker, D. L. Smith, D.L. Smith, E.I. Rashba, G. Schmidt, H.J. Zhu, I. Malajovich, J. D. Albrecht, R. Fiederling, S.A. Wolf, Y. Qi   +13 more
core   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

Ultraflexible and transparent electroluminescent skin for real-time and super-resolution imaging of pressure distribution

Nature Communications, 2020
Electronic skin that spatially maps pressure distribution through imaging shows limited performance despite improvements to data acquisition. Here, the authors report ultraflexible, transparent electroluminescent skin capable of high-resolution imaging ...
Byeongmoon Lee, Ji-Young Oh, Hyeon Cho, Chul Woong Joo, Hyungsoo Yoon, Sujin Jeong, Eunho Oh, Junghwan Byun, Hanul Kim, Seunghwan Lee, Jiseok Seo, Chan Woo Park, Sukyung Choi, Nae-Man Park, Seung-Youl Kang, Chi-Sun Hwang, Seong-Deok Ahn, Jeong-Ik Lee, Yongtaek Hong   +18 more
doaj   +1 more source

Fast detector of the ellipticity of infrared and terahertz radiation based on HgTe quantum well structures [PDF]

, 2008
We report a fast, room temperature detection scheme for the polarization ellipticity of laser radiation, with a bandwidth that stretches from the infrared to the terahertz range. The device consists of two elements, one in front of the other, that detect
A. F. G. van der Meer, Asnin V. M., Asnin V. M., B. Murdin, B. Wittmann, Born M., E. V. Beregulin, Edwards T., Ganichev S. D., Ivchenko E. L., Ivchenko E. L., Ivchenko E. L., L. E. Golub, N. N. Mikhailov, N. Q. Vinh, P. Olbrich, S. A. Dvoretsky, S. D. Ganichev, S. N. Danilov, V. A. Shalygin, W. Eder, W. Prettl, Woolard D. L., Z. D. Kvon   +23 more
core   +3 more sources

Trace Nickel Activated Biphasic Core‐CuOii/Shell‐CuOi Secondary Microspheres Enable Room Temperature Parts‐Per‐Trillion‐Level NO2 Detection

Advanced Engineering Materials, EarlyView.
An idea of designing novel sensors is proposed by creating appropriate Schottky barriers and vacancies between isomorphous Core‐CuOii/ Shell‐CuOi secondary microspheres and enhancing catalytic and spill‐over effects, and electronegativity via spontaneous biphasic separation, self‐assembly, and trace‐Ni‐doping.
Bala Ismail Adamu, Peipei Chen, Shafia Mukhtar Ibrahim, Mukhtar Lawan Adam, Attia Falak, Mokhotjwa Simon Dhlamini, Hanfu Wang, Lingxiang Jiang, Weiguo Chu   +8 more
wiley   +1 more source

Orifice gross leak tester Patent [PDF]

, 1971
Test chambers with orifice and helium mass spectrometer for detecting leak rate of encapsulated semiconductor ...
Altshuler, T. L.
core   +1 more source

Integrated electroplated heat spreaders for high power semiconductor lasers [PDF]

, 2008
Thermal management of high power semiconductor lasers is challenging due to the low thermal conductivity of the laser substrate and the active device layers. In this work, we demonstrate the use of a microfabricated laser test device to study the thermal
Chen, Gang, Fleurial, Jean-Pierre, Fu, Jianping, Snyder, G. Jeffrey, Yang, Ronggui   +4 more
core   +1 more source

An Inkjet‐Printed Platinum‐Based Temperature Sensing Element on Polyimide Substrates

Advanced Engineering Materials, EarlyView.
An inkjet‐printed, meander‐structured, nanoparticle platinum‐based resistive temperature sensors on polyimide substrates are demonstrated as proof‐of‐concept. Optimized sintering at 250°C enables stable conductive structures. The Pt100‐ and Pt1000‐type sensors exhibit linear resistance–temperature characteristics with stable TCR in the 20°C–80°C range,
Shawon Alam, Thomas Kister, Alexander Scholz, Sophie Sauva, Makara Lay, Tobias Kraus, Jasmin Aghassi‐Hagmann   +6 more
wiley   +1 more source