Recombination of electron-hole pairs at low temperatures

Autor:	T.M. Searle
Rok vydání:	1991
Předmět:	Range (particle radiation) Photoluminescence Chemistry Carrier generation and recombination Electron Condensed Matter Physics Electronic Optical and Magnetic Materials Materials Chemistry Ceramics and Composites Diffusion (business) Atomic physics Quantum tunnelling Recombination Excitation
Zdroj:	Journal of Non-Crystalline Solids. :571-574
ISSN:	0022-3093
DOI:	10.1016/s0022-3093(05)80182-6
Popis:	The kinetics of recombination of an initially random distribution of electrons and holes is discussed for the cases where the carriers are completely or nearly immobile because of localisation due to disorder. A one dimensional Monte-Carlo method is used to simulate the decay of photoluminescence following pulse excitation over a range of initial carrier densities. Lifetime distributions are also derived for comparison with FRS data. The effect on the decay of increasing temperature is discussed as the reaction goes from tunnelling to diffusion limited. The steady state situation is approached via a two dimensional simulation which shows how the clustering effects which dominate the decay grow to yield two separate clusters, one of holes and one of electrons.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ebf11ad548b02acbb880c730dc343f4f https://doi.org/10.1016/s0022-3093(05)80182-6 Zobrazit plný text záznamu