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Isothermal transient current studies in cellulose acetate films
Author(s) -
Kumar Ashok,
Nath Rabinder
Publication year - 1983
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1983.070280803
Subject(s) - cellulose acetate , isothermal process , transient (computer programming) , materials science , cellulose , analytical chemistry (journal) , doping , transit time , polymer chemistry , thermodynamics , chemistry , optoelectronics , chromatography , physics , organic chemistry , transport engineering , computer science , engineering , operating system
Step voltage transient current studies have been made in cellulose acetate films as a function of filed and thickness. A logarithmic plot (Scherr‐Montroll plot) of the transient current vs. time gives a knee at a time t T , which is interpreted as the transit time of the charge carrier. The value of the carrier mobility has been estimated to be 3.9 × 10 −9 cm 2 .V −1 .S −1 in cellulose acetate film. The carrier mobility in iodine‐doped (2% w/w) cellulose acetate film has also been determined from Scher‐Montroll plot and is found to be 3.3 × 10 −7 cm 2 .V −1 .S −1 .