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- W1995349771 abstract "The physics of slow relaxation of photo-excited carriers in semiconductors is an important but poorly understood problem in condensed matter physics. We focus on photo-induced conductivity, which persists for a long time after removal of the photo-excitation. This slow relaxation of photo-excited carriers is known as persistent photo-conductivity (PPC) and has been observed in several semiconductors, manganites and high-temperature superconductors. In this article, we explore the microscopic mechanisms responsible for slow relaxation of nonequilibrated photo-carriers in three technologically important semiconductors, Al x Ga1 −x As, SiC and GaN. Some important experimental facts concerning the microscopic origin of PPC are described, with particular emphasis on those which indicate the need for new approaches other than the phenomenological barrier-driven model of slow relaxation." @default.
- W1995349771 created "2016-06-24" @default.
- W1995349771 creator A5077271317 @default.
- W1995349771 date "2004-08-01" @default.
- W1995349771 modified "2023-09-26" @default.
- W1995349771 title "Slow Relaxation of Nonequilibrated Photo-carriers in Semiconductors" @default.
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