Transient photodecay measurements as a probe of the density of localized states in amorphous semiconductors
作者： M. Silver , Eric Snow , David Adler
DOI: 10.1016/0038-1098(85)90366-7
关键词: Photoconductivity 、 Yield (chemistry) 、 Condensed matter physics 、 Photocurrent 、 Exponential function 、 Spectroscopy 、 Molecular physics 、 Density of states 、 Electronic structure 、 Chemistry 、 Transient (oscillation)
摘要: Abstract We show that structure in the density of localized states an amorphous semiconductor beyond apparently ubiquitous exponential band tails yield deviations from usual power-law decay photocurrent, i(t) ∝ tα−1, which can be described analytically. With our expression, dispersive-transport results deconvoluted to provide a spectroscopy localized-state distribution when well-defined defect centers and are simultaneously present.
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