Temperature dependent charge transport in organic field-effect transistors with the variation of both carrier concentration and electric field

Abbas, Mamatimin, Pivrikas, Almantas, Arici, Elif, Tekin, Nalan, Ullah, Mujeeb, Sitter, Helmut and Sariciftci, Niyazi Serdar (2013) Temperature dependent charge transport in organic field-effect transistors with the variation of both carrier concentration and electric field. Journal of Physics D: Applied Physics, 46 49: 495105.1-495105.6. doi:10.1088/0022-3727/46/49/495105


Author Abbas, Mamatimin
Pivrikas, Almantas
Arici, Elif
Tekin, Nalan
Ullah, Mujeeb
Sitter, Helmut
Sariciftci, Niyazi Serdar
Title Temperature dependent charge transport in organic field-effect transistors with the variation of both carrier concentration and electric field
Journal name Journal of Physics D: Applied Physics   Check publisher's open access policy
ISSN 0022-3727
1361-6463
Publication date 2013-12
Year available 2013
Sub-type Article (original research)
DOI 10.1088/0022-3727/46/49/495105
Open Access Status
Volume 46
Issue 49
Start page 495105.1
End page 495105.6
Total pages 6
Place of publication Bristol, United Kingdom
Publisher Institute of Physics Publishing
Collection year 2014
Language eng
Formatted abstract
We present experimental evidence of combined effects of temperature, carrier concentration, electric field as well as disorder on charge transport in an organic field-effect transistor (OFET). Transfer characteristics of an OFET based on sexithiophene active layer were measured from 80 to 300 K. Thermally activated carrier mobility followed Arrhenius law with two activation energies. Carrier density variation led to finite extrapolated Meyer-Neldel (MN) temperature (780 K) at low fields. Negative electric field-dependent mobility was observed in available field range. MN temperature shifted towards higher temperature when the electric field increased, and did not retain its finite character above the field of 4 × 103 V cm-1.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Centre for Organic Photonics and Electronics
Official 2014 Collection
School of Chemistry and Molecular Biosciences
 
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