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Jiménez Tejada, Juan A., Romero, Adrian, Gonzalez, Jesus, Chaure, Nandu B., Cammidge, Andy 
ORCID: https://orcid.org/0000-0001-7912-4310, Chambrier, Isabelle, Ray, Asim K. and Deen, M. Jamal
(2019)
Evolutionary computation for parameter extraction of organic thin film transistors using newly synthesized liquid crystalline nickel phthalocyanine.
Micromachines, 10 (10).
ISSN 2072-666X
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Abstract
In this work, the topic of the detrimental contact effects in organic thin film transistors 1 (OTFTs) is revisited. In this case, contact effects are considered as a tool to enhance the characterization 2 procedures of OTFTs, achieving more accurate values for the fundamental parameters of the 3 transistor –threshold voltage, carrier mobility and on-off current ratio. The contact region is 4 also seen as a fundamental part of the device which is sensitive to physical, chemical and 5 fabrication variables. A compact model for OTFTs, which includes the effects of the contacts, 6 and a recent proposal of an associated evolutionary parameter extraction procedure, are reviewed. 7 Both the model and the procedure are used to assess the effect of the annealing temperature on 8 a nickel-1,4,8,11,15,18,22,25-octakis(hexyl)phthalocyanine (NiPc6) based OTFT. A review of the 9 importance of phthalocyanines in organic electronics is also provided. The characterization of the 10 contact region in NiPc6 OTFTs complements the results extracted from other physical-chemical 11 techniques such as differential scanning calorimetry or atomic force microscopy, in which the 12 transition from crystal to columnar mesophase imposes a limit for the optimum performance of the 13 annealed OTFTs.
| Item Type: | Article |
|---|---|
| Faculty \ School: | Faculty of Science > School of Chemistry |
| UEA Research Groups: | Faculty of Science > Research Groups > Chemistry of Materials and Catalysis Faculty of Science > Research Groups > Chemistry of Light and Energy |
| Depositing User: | LivePure Connector |
| Date Deposited: | 11 Oct 2019 13:30 |
| Last Modified: | 12 May 2023 09:33 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/72520 |
| DOI: | 10.3390/mi10100683 |
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