Trap-controlled dispersive transport and exponential band tails in amorphous silicon

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Abstract

The theory of trap-controlled dispersive transport based on exponential band-tail traps is extended to include the saturation of trap occupancy at high excitation levels. The absence of saturation effects in the transient photocurrent experiment of Hvam and Brodsky is shown to contradict the band-tail hypothesis of this model.

Original languageEnglish (US)
Pages (from-to)6189-6192
Number of pages4
JournalPhysical Review B
Volume24
Issue number10
DOIs
StatePublished - Jan 1 1981

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ASJC Scopus subject areas

  • Condensed Matter Physics

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