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Photoconductivity of a-Si:H as a function of doping, temperature and photocarrier generation rates between 10{sup 13} and 10{sup 28}cm{sup {minus}3}s{sup {minus}1}

Book ·
OSTI ID:527720
;  [1]; ;  [2]
  1. Univ. of Chicago, IL (United States). James Franck Inst.
  2. FORTH, Crete (Greece). Inst. of Electronic Structure and Laser
The steady state photoconductivity {sigma}{sub p} of n-type, p-type and intrinsic a-Si:H has been studied up to photocarrier generation rates of G = 5 {times} 10{sup 27}cm{sup {minus}3}s{sup {minus}1}. In the 20ppm B{sub 2}H{sub 6}/SiH{sub 4} p-type sample photoconduction switches from holes at low G to electrons at high G. The electron photoconduction at high G is increased by n-type and decreased by p-type doping. This is explained by the charge state of the dominant electron recombination centers. The {sigma}{sub p}(G) curves of doped and intrinsic a-Si:H merge at the highest G used.
OSTI ID:
527720
Report Number(s):
CONF-960401--; ISBN 1-55899-323-1
Country of Publication:
United States
Language:
English