High-mobility organic thin film transistors based on benzothiadiazole- sandwiched dihexylquaterthiophenes
Sonar, Prashant, Singh, Samarendra, Sudhakar, Sundarraj, Dodabalapur, Ananth, & Sellinger, Alan (2008) High-mobility organic thin film transistors based on benzothiadiazole- sandwiched dihexylquaterthiophenes. Chemistry of Materials, 20(9), pp. 3184-3190.
Description
We report here the synthesis, characterization, and organic thin-film transistor (OTFT) mobilities of 4,7-bis(5-(5-hexylthiophen-2-yl)thiophen-2-yl) benzo[1,2,5]thiadiazole (DH-BTZ-4T). DH-BTZ-4T was prepared in one high-yield step from commercially available materials using Suzuki chemistry and purified by column chromatography. OTFTs with hole mobilities of 0.17 cm2/(Vs) and on/off current ratios of 1 × 105 were prepared from DH-BTZ-4T active layers deposited by vacuum deposition. As DH-BTZ-4T is soluble in common solvents, solution processed devices were also prepared by spin coating yielding preliminary mobilities of 6.0 × 10-3 cm 2/(Vs). The promising mobilities and low band gap (1.90 eV) coupled with solution processability and ambient stability makes this material an excellent candidate for application in organic electronics.
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| ID Code: | 75251 | ||
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| Item Type: | Contribution to Journal (Journal Article) | ||
| Refereed: | Yes | ||
| ORCID iD: |
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| Measurements or Duration: | 7 pages | ||
| Keywords: | Column chromatography, High mobility organic thin film transistors, Olefins, Organic electronics, Organic solvents, Spin coating, Synthesis (chemical), Thin film transistors, Vacuum deposition | ||
| DOI: | 10.1021/cm800139q | ||
| ISSN: | 0897-4756 | ||
| Pure ID: | 33657857 | ||
| Divisions: | Past > QUT Faculties & Divisions > Science & Engineering Faculty | ||
| Copyright Owner: | Consult author(s) regarding copyright matters | ||
| Copyright Statement: | This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au | ||
| Deposited On: | 28 Oct 2014 12:25 | ||
| Last Modified: | 03 Apr 2026 00:14 |
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