Observation of Quantum-Dot-Like Properties in the Phase-Separated GaN-Rich GaNP

Autor:	K. Iwata, H. Tampo, R Kuroiwa, Hajime Asahi, Shun-ichi Gonda, Kumiko Asami
Rok vydání:	1999
Předmět:	Condensed Matter::Materials Science Photoluminescence Condensed matter physics Quantum dot Chemistry Phase (matter) Cluster (physics) Condensed Matter Physics Molecular physics Lower energy Ternary alloy Electronic Optical and Magnetic Materials Molecular beam epitaxy
Zdroj:	physica status solidi (b). 216:461-464
ISSN:	1521-3951 0370-1972
Popis:	GaN-rich GaNP ternary alloy layers are grown by gas source molecular beam epitaxy. Beyond an average P composition of 0.015, phase separation is observed. For the phase-separated samples, quantum-dot-like photoluminescence (PL) properties are observed for the first time. The PL peak energy shows a large red-shift, which comes from the phase-separated GaP-rich GaPN cluster regions. The PL spectrum shows multiple peak structures and its main peak moves with increasing temperature from one peak to another toward lower energy. Energy separations between them are 30 to 50 meV.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f15224c9621e22d8853e362270351938 https://doi.org/10.1002/(sici)1521-3951(199911)216:1<461::aid-pssb461>3.0.co Zobrazit plný text záznamu Plný text