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1/f noise and thermal equilibration effects in hot wire deposited amorphous silicon

Book ·
OSTI ID:527700
;  [1]; ;  [2]
  1. Univ. of Minnesota, Minneapolis, MN (United States). School of Physics and Astronomy
  2. NREL, Golden, CO (United States)

Measurements of the conductance fluctuations and thermal equilibration of the dark conductivity of a series of undoped hydrogenated amorphous silicon thin films synthesized by Hot-Wire Chemical Vapor Deposition (HWCVD), with hydrogen contents varying from less than one to twelve atomic percent are reported. The spectral density of the conductance fluctuations varies inversely with frequency f and is dependent upon hydrogen concentration; the 1/f noise statistics are non-Gaussian, indicating correlated fluctuators as is observed in PECVD a-Si:H. These results indicate that aspects of electronic transport and defect dynamics in HWCVD films are similar to those in PECVD a-Si:H films.

OSTI ID:
527700
Report Number(s):
CONF-960401--; ISBN 1-55899-323-1
Country of Publication:
United States
Language:
English