Droplet epitaxy for advanced optoelectronic materials and devices

J Wu, ZM Wang - Journal of Physics D: Applied Physics, 2014 - iopscience.iop.org
Droplet epitaxy was proposed to fabricate quantum dots in the early 1990s. Even though
many research efforts have been devoted to droplet epitaxy since then, it is only until …

Self-assembled Bismuth Selenide (Bi2Se3) quantum dots grown by molecular beam epitaxy

MS Claro, I Levy, A Gangopadhyay, DJ Smith… - Scientific reports, 2019 - nature.com
We report the growth of self-assembled Bi2Se3 quantum dots (QDs) by molecular beam
epitaxy on GaAs substrates using the droplet epitaxy technique. The QD formation occurs …

Method for inducing strain in vertical semiconductor columns

JP Colinge, GS Chang, CH Diaz - US Patent 9,368,619, 2016 - Google Patents
Abstract A vertical Metal-Oxide-Semiconductor (MOS) transistor includes a substrate and a
nano-wire over the substrate. The nano-wire comprises a semiconductor material. An oxide …

Reflectance anisotropy spectroscopy of strain-engineered GaAsBi alloys

C Goletti, L Fazi, E Tisbi, B Bonanni, E Placidi… - Applied Physics …, 2022 - pubs.aip.org
In this paper, we present results obtained by an optical technique, namely, reflectance
anisotropy spectroscopy (RAS), applied to a series of GaAs 1− x Bi x samples grown by …

Epitaxially Self‐Assemblied Quantum Dot Pairs

J Wu, X Hu, J Lee, ES Kim… - Advanced Optical …, 2013 - Wiley Online Library
The present paper reviews the recent efforts and achievements regarding the fabrication
techniques of self‐assembled quantum dot pairs. Quantum dot pairs, the simplest but most …

Effects of spatial confinement and layer disorder in photoluminescence of GaAs1− xBix/GaAs heterostructures

YI Mazur, VG Dorogan, M Benamara… - Journal of Physics D …, 2013 - iopscience.iop.org
The structural and optical properties of a set of high-quality GaAs 1− x Bi x/GaAs quantum
well (QW) heterostructures with Bi concentrations ranging from 3.5% to 6.7% are studied …

Inducing localized strain in vertical nanowire transistors

JP Colinge, GS Chang, CH Diaz - US Patent 9,466,668, 2016 - Google Patents
A device includes a semiconductor Substrate and a vertical nano-wire over the
semiconductor substrate. The vertical nano-wire includes a bottom source? drain region, a …

Devices having a semiconductor material that is semimetal in bulk and methods of forming the same

JP Colinge, CH Diaz, YC Yeo - US Patent 9,564,493, 2017 - Google Patents
Devices, and methods of forming Such devices, having a material that is semimetal when in
bulk but is a semicon ductor in the devices are described. An example structure includes a …

Characterization and density control of GaN nanodots on Si (111) by droplet epitaxy using plasma-assisted molecular beam epitaxy

IS Yu, CP Chang, CP Yang, CT Lin, YR Ma… - Nanoscale research …, 2014 - Springer
In this report, self-organized GaN nanodots have been grown on Si (111) by droplet epitaxy
method, and their density can be controlled from 1.1× 10 10 to 1.1× 10 11 cm-2 by various …

Electronic and quantum phase coherence properties of bismuth thin films

M Rudolph, JJ Heremans - Applied Physics Letters, 2012 - pubs.aip.org
We present a method to deposit bulk-like Bi films by thermal evaporation and study the
electrical, quantum coherence, and physical properties. A two stage growth procedure was …