The long-time drift mobility in aSi

H: Optical bias and temperature dependence

R. Pandya, Eric Allan Schiff, K. A. Conrad

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The effects of optical bias and temperature on the drift-mobility of intrinsic aSi:H between 10-7 s and 1 s have been studied using coplanar electrode photocurrent transients. The drift mobility depends substantially upon optical bias over the entire time range, in contrast with the expectation from multiple-trapping in a fixed density of trap states. Shallow D- center traps formed from dangling bonds (D0) can account for the discrepancies if optical depopulation of the D0 is taken into account; this effect amounts to optical modification of the one-particle density of states.

Original languageEnglish (US)
Pages (from-to)193-198
Number of pages6
JournalJournal of Non-Crystalline Solids
Volume66
Issue number1-2
DOIs
StatePublished - 1984

Fingerprint

Dangling bonds
Photocurrents
traps
temperature dependence
Electrodes
photocurrents
trapping
Temperature
electrodes
temperature

ASJC Scopus subject areas

  • Ceramics and Composites
  • Electronic, Optical and Magnetic Materials

Cite this

The long-time drift mobility in aSi : H: Optical bias and temperature dependence. / Pandya, R.; Schiff, Eric Allan; Conrad, K. A.

In: Journal of Non-Crystalline Solids, Vol. 66, No. 1-2, 1984, p. 193-198.

Research output: Contribution to journalArticle

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AB - The effects of optical bias and temperature on the drift-mobility of intrinsic aSi:H between 10-7 s and 1 s have been studied using coplanar electrode photocurrent transients. The drift mobility depends substantially upon optical bias over the entire time range, in contrast with the expectation from multiple-trapping in a fixed density of trap states. Shallow D- center traps formed from dangling bonds (D0) can account for the discrepancies if optical depopulation of the D0 is taken into account; this effect amounts to optical modification of the one-particle density of states.

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