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Title:Characterisation of charge carrier transport in thin organic semiconductor T layers by time-of-flight photocurrent measurements
Authors:Bratina, Gvido (Author)
Pavlica, Egon (Author)
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Language:English
Work type:Not categorized (r6)
Tipology:1.02 - Review Article
Organization:UNG - University of Nova Gorica
Abstract:The paper reviews recent advances in characterisation of charge carrier transport in organic semiconductor layers by time-of-flight photocurrent measurements, with the emphasis on the measurements of the samples with co-planar electrodes. These samples comprised an organic semiconductor layer whose thickness is on the order of a μm or less, and thus mimic the structures of organic thin film transistors. In the review we emphasise the importance of considering spatial variation of electric field in these, essentially two-dimensional structures, in interpretation of photocurrent transients. We review the experimental details of this type of measurements and give examples that demonstrate exceptional sensitivity of the method to minute concentration of electrically active defects in the organic semiconductors as well as the capability of probing charge transport along the channels of different mobility that reside in the same sample.
Keywords:organic semiconductors, time of flight, mobiulity
Year of publishing:2019
Number of pages:1176-130
Numbering:64
COBISS_ID:5255163 Link is opened in a new window
URN:URN:SI:UNG:REP:GTPN9N5O
DOI:10.1016/j.orgel.2018.09.049 Link is opened in a new window
License:CC BY-NC-ND 4.0
This work is available under this license: Creative Commons Attribution Non-Commercial No Derivatives 4.0 International
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Record is a part of a journal

Title:Organic Electronics
Publisher:Elsevier
ISSN:1566-1199
Year of publishing:2019

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