Summary
It has been found in some organic compounds that the drift mobility of carriers decreases with the increasing electric field (HANSEL et al. 1978, HALADYJ et al. 1980, KANIA 1980, KONDRASIUK and SZYMANSKI 1972, MYCIELSKI and LIPINSKI 1978). All these experimental results can be interpreted on the assumption that the time of flight of carriers across a sample is controlled by one “difficult” jump. For such a system the Einstein equation is not valid and the drift velocity of carriers is independent of the electric field.
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References
BAK,G.W.:Polymer Bulletin 8,95(1982)
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BAK, G.W.:Thin Solid Films 105,183(1983)
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KANIA,S.:Thesis, Techn. Univ. of Lodz, 1980
MYCIELSKI,W.,LIPINSKI,A.:Thin Solid Films 48,133(1978)
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Bak, G.W. Constant drift velocity of carriers in organic compounds. Polymer Bulletin 11, 443–445 (1984). https://doi.org/10.1007/BF00265485
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DOI: https://doi.org/10.1007/BF00265485