Novel InGaPBi single crystal grown by molecular beam epitaxy
Journal article, 2015
InGaPBi crystalline thin films with up to 2.1% bismuth concentration have been grown on GaAs substrates by molecular beam epitaxy. Rutherford backscattering spectrometry confirms that the majority of Bi atoms are located at substitutional lattice sites. The films exhibit good surface, structural, and interface quality, and their strains can be tuned from tensile to compressive by increasing the Bi content. InBi LO and GaBi LO vibrational modes in Raman spectroscopy were observed, and their intensities increased with Bi concentration. A weak photoluminescence signal was observed at 1.78 eV at room temperature for the sample with a Bi content of 0.5%.
Author
L. Yue
Chinese Academy of Sciences
P. Wang
Chinese Academy of Sciences
K. Wang
Chinese Academy of Sciences
X. Y. Wu
Chinese Academy of Sciences
W. W. Pan
Chinese Academy of Sciences
Y. Li
Chinese Academy of Sciences
Y. X. Song
Chinese Academy of Sciences
Yi Gu
Chinese Academy of Sciences
Q. Gong
Chinese Academy of Sciences
Shu Min Wang
Chalmers, Microtechnology and Nanoscience (MC2), Photonics
J. Q. Ning
The University of Hong Kong
S. Xu
The University of Hong Kong
Published in
Applied Physics Express
18820778 (ISSN) 18820786 (eISSN)
Vol. 8 Issue 4 p. Art. no. 041201- art. no 041201Categorizing
Subject Categories (SSIF 2011)
Other Engineering and Technologies
Condensed Matter Physics
Identifiers
DOI
10.7567/apex.8.041201