Results 51 to 60 of about 1,511 (211)

Role of Liquid Composition in the Transient Liquid Assisted Growth of Superconducting YBa2Cu3O7‐δ Films

Advanced Materials, EarlyView.
The Y supersaturation in the [Ba‐Cu(I/II)‐O] transient liquid composition is the driving force toward YBCO nucleation and growth in TLAG. Tuning the initial (Ba:Cu) molar ratio in the ink composition determines the YBCO epitaxial nucleation through supersaturation control.
Lavinia Saltarelli, Diana García, Laia Soler, Elzbieta Pach, Kapil Gupta, Daniel Sanchez‐Rodriguez, Jordi Aguilar, Víctor Fuentes, Eduardo Solano, Cristian Mocuta, Jordi Farjas, Xavier Obradors, Teresa Puig   +12 more
wiley   +1 more source

Complex quantum ring structures formed by droplet epitaxy [PDF]

, 2006
Well-defined complex quantum ring structures formed by droplet epitaxy are demonstrated. By varying the temperature of the crystallizing Ga droplets and changing the As flux, GaAs/AlGaAs quantum single rings and concentric quantum double rings are ...
Xia JB (Xia Jianbai), Ni HQ (Ni Haiqiao), Gong Z (Gong Zheng), zhenggong@strath.ac.uk, Fang ZD (Fang Zhidan), Huang SS (Huang Shesong), fangzhidan@bjut.edu.cn, Niu ZC (Niu Zhichuan), Niu, ZC, Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, POB 912, Beijing 100083, Peoples R China. E-mail: zcniu@semi.ac.cn   +8 more
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Molecular beam homoepitaxy of N-polar AlN on bulk AlN substrates

AIP Advances, 2022
N-polar AlN epilayers were grown on the N-face of single-crystal bulk AlN substrates by plasma-assisted molecular beam epitaxy. A combination of in situ thermal deoxidation and Al-assisted thermal desorption at high temperature aided in removing native ...
Jashan Singhal, Jimy Encomendero, Yongjin Cho, Len van Deurzen, Zexuan Zhang, Kazuki Nomoto, Masato Toita, Huili Grace Xing, Debdeep Jena   +8 more
doaj   +1 more source

Control of the lateral growth morphology in GaAs Droplet Epitaxy

Journal of Physics: Conference Series, 2010
We present the detailed fabrication method of two different GaAs nanostructures with cylindrical symmetry by the Droplet Epitaxy technique. Concentric Multiple Rings or Coupled Rings/Disks are successfully obtained, exploiting the lateral growth around the Ga droplets, through a fine control of the crystallization dynamics.
SOMASCHINI, CLAUDIO, BIETTI, SERGIO, SANGUINETTI, STEFANO, Koguchi, N, Fedorov, A.   +4 more
openaire   +3 more sources

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

Universal Conductance Fluctuations in Quantum Anomalous Hall Insulators

Advanced Materials, EarlyView.
Universal conductance fluctuations are observed in mesoscopic quantum anomalous Hall insulators. Two distinct fluctuation patterns are identified, arising from different interference processes of bulk and chiral edge states, respectively. These findings unveil rich quantum interference phenomena in quantum anomalous Hall insulators and provide insights
Peng Deng, Peng Zhang, Gang Qiu, Ting‐Hsun Yang, Chang Niu, Yaochen Li, Wenqiang Cui, Yang Feng, Peide D. Ye, Ke He, Kai Chang, Kang L. Wang   +11 more
wiley   +1 more source

Formation of GaAs/AlGaAs and InGaAs/GaAs nanorings by droplet molecular-beam epitaxy [PDF]

, 2005
GaAs/AlGaAs lattice-matched nanorings are formed on GaAs (100) substrates by droplet epitaxy. The crucial step in the formation of nanorings is annealing Ga droplets under As flux for proper time.
Xia, JB, Fang, ZD, Sun, BQ, Gong, Z, zcniu@red.semi.ac.cn, Niu, ZC, Chinese Acad Sci, Inst Semicond, Key Lab Superlattices & Microstruct, POB 912, Beijing 100083, Peoples R China. 电子邮箱地址: zheng.gong@strath.ac.uk, Huang, SS, Niu, ZC   +7 more
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A unified model of droplet epitaxy for compound semiconductor nanostructures: experiments and theory [PDF]

, 2020
We present a unified model of compound semiconductor growth based on kinetic Monte Carlo simulations in tandem with experimental results that can describe and predict the mechanisms for the formation of various types of nanostructures observed during ...
Joanna Mirecki Millunchick, Kristofer Reyes, Claudio Somaschini, Cesare Frigeri, Sergio Bietti, Stefano Sanguinetti, Peter Smereka, Denis Nothern   +7 more
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Lead Halide Perovskite Photoelectrocatalysis

Advanced Materials, EarlyView.
Lead halide perovskite semiconductors have emerged as highly promising materials for solar fuel and chemical synthesis. This perspective discusses advances made in the rational photoelectrode design to improve solar‐to‐chemical conversion, product scope, and scalability.
Virgil Andrei
wiley   +1 more source

Study of the wetting layer of InAs/GaAs nanorings grown by droplet epitaxy [PDF]

, 2008
The properties of the wetting layer (WL) of InAs nanorings grown by droplet epitaxy have been studied. The heavy-hole (HH) and light-hole (LH) related transitions of the In(Ga)As WL were observed by reflectance difference spectroscopy.
Zhao, C, Chen, YH, Wang, ZG, Ding, F, Zhao, C, Chinese Acad Sci, Inst Semicond, Key Lab Semicond Mat Sci, POB 912, Beijing 100083, Peoples R China. 电子邮箱地址: yhchen@red.semi.ac.cn, Tang, CG, Xu, B   +6 more
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