Lead-Strontium-Telluride Films and Lasers Prepared by Hot-Wall Epitaxy

Autor:	Hiroshi Fujiyasu, Akihiro Ishida, Nobuhiro Sakurai
Rok vydání:	1994
Předmět:	General Engineering Analytical chemistry General Physics and Astronomy Epitaxy Laser Active layer Semiconductor laser theory law.invention chemistry.chemical_compound Lattice constant chemistry law Hall effect Telluride Thin film
Zdroj:	Japanese Journal of Applied Physics. 33:151
ISSN:	1347-4065 0021-4922
DOI:	10.1143/jjap.33.151
Popis:	Pb1- x Sr x Te films were prepared by hot-wall epitaxy on BaF2(111) substrates. X-ray diffraction analysis, optical transmission measurement, Hall measurement and electron-probe micro-analysis (EPMA) were performed for the films. It was observed that the increasing rate of the lattice constant of the Pb1- x Sr x Te films with the SrTe content was considerably larger than that estimated from Vegard's law. Pb1- x Sr x Te/PbTe double-heterostructure (DH) and multiple-quantum-well (MQW) lasers were also prepared for the first time by hot-wall epitaxy. Pulsed laser operations were obtained up to 227 K (4.1 µ m) for the DH laser and up to 220 K (3.5 µ m) for the MQW laser. Large output energy shifts due to misfit strain in the active layer were observed.
Databáze:	OpenAIRE
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