Photocurrents Through Thin Polymer Films
作者:
R. H. Colburn,
R. W. Christy,
期刊:
Journal of Applied Physics
(AIP Available online 1969)
卷期:
Volume 40,
issue 10
页码: 3958-3961
ISSN:0021-8979
年代: 1969
DOI:10.1063/1.1657124
出版商: AIP
数据来源: AIP
摘要:
Polymer films deposited by electron‐beam bombardment were sandwiched between aluminum electrode films. Photocurrents through these sandwiches, with thicknesses between 150 and 300 Å, were measured in the range of photon energies from 2 to 5 eV and with applied voltage bias up to 3 V. The photocurrent vs bias characteristics are symmetrical about the origin. The photocurrent increases with photon energy at fixed bias, with a threshold photon energy of about 2.2 eV, which is independent of the bias. The optical absorption of the polymer shows approximately the same threshold. These results are discussed in terms of the band structure of amorphous semiconductors.
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