Structure and surface morphology of GeSn/Si(001) layers grown by HW CVD with co-evaporation of Sn

Autor: V. G. Shengurov, M. V. Ved, S. A. Denisov, M. Yu Kuz’min, A. V. Zaitsev, V. Yu. Chalkov, A. V. Kudrin, D. O. Filatov
Rok vydání: 2020
Předmět:
Zdroj: Journal of Physics: Conference Series. 1482:012016
ISSN: 1742-6596
1742-6588
DOI: 10.1088/1742-6596/1482/1/012016
Popis: This paper presents the results of the investigation of Ge1-xSnx epitaxial layers grown by the hot wire chemical vapor deposition (HW CVD) method with simultaneous evaporation of Sn from a standard effusion cell. The Ge1-xSnx with a Sn molar fraction of 7.2% and a full width at half maximum (FWHM) of the rocking curve of 7.6` demonstrated intense photoluminescence at room temperature. The peaks in the energy bands 0.70 – 0.73 eV and 0.63 – 0.65 eV have been observed in the photoluminescence spectra. These peaks were related to the direct and indirect interband radiative optical transitions in GeSn, respectively.
Databáze: OpenAIRE