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http://bura.brunel.ac.uk/handle/2438/11157
Title: | Effects of annealing on device parameters of organic field effect transistors using liquid-crystalline tetrasubstituted zinc phthalocyanine |
Authors: | Faris, T Basova, T Chaure, NB Sharma, AK Durmuş, M Ahsen, V Ray, AK |
Keywords: | Organic thin-film transistors;Annealing;Grain boundaries |
Issue Date: | 2014 |
Publisher: | Institute of Physics Publishing |
Citation: | EPL (Europhysics Letters), 106 (5): 58002, (2014) |
Abstract: | The device performance of organic thin-film transistors (OTFTs) employing the solution processed films of room temperature liquid-crystalline tetrasubstituted zinc phthalocyanine derivative was found to depend upon the film morphology. Atomic force microscopic and X-Ray diffraction studies show that the annealing at 70° produced a preferentially unidirectional void-free film with improved surface smoothness. The OTFTs with the annealed films exhibited enhanced conductivity, threefold reduction in threshold voltage, a nearly one order of magnitude increase in the on/off ratio and more than one-third reduction of hysteresis in the transfer characteristics. |
URI: | http://iopscience.iop.org/0295-5075/106/5/58002/ http://bura.brunel.ac.uk/handle/2438/11157 |
DOI: | http://dx.doi.org/10.1209/0295-5075/106/58002 |
ISSN: | 0295-5075 1286-4854 |
Appears in Collections: | Wolfson Centre for Sustainable Materials Development and Processing |
Files in This Item:
File | Description | Size | Format | |
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Fulltext.doc | 1.33 MB | Microsoft Word | View/Open |
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