A QUANTUM-SPONGE MODEL FOR POROUS SILICON

Autor:	N. Ookubo, S. Sawada
Rok vydání:	1996
Předmět:	Stretched exponential function Photoluminescence Materials science Condensed matter physics Nanotechnology Surfaces and Interfaces Condensed Matter Physics Porous silicon Surfaces Coatings and Films Character (mathematics) Fractal Materials Chemistry Physics::Chemical Physics Wave function Quantum
Zdroj:	Surface Review and Letters. :1157-1161
ISSN:	1793-6667 0218-625X
DOI:	10.1142/s0218625x96002072
Popis:	We propose a “quantum-sponge” model for porous silicon. This model exhibits energy-gap widening and nonexponential decay of photoluminescence describable by the stretched exponential function. These properties are in good agreement with those observed for porous silicon. We suggest that the fractal character of its wave functions is the origin of the nonexponential decay of photoluminescence.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1dcbab8a1eaada91d2876b68c6fd27ff https://doi.org/10.1142/s0218625x96002072 Zobrazit plný text záznamu