Synthesis and Photophysical Studies of Thiadiazole[3,4-c]pyridine Copolymer Based Organic Field-Effect Transistors
- Authors
- Bathula, Chinna; Lee, Sang Kyu; Kalode, Pranav; Badgujar, Sachin; Belavagi, Ningaraddi S.; Khazi, Imtiyaz Ahmed M.; Kang, Youngjong
- Issue Date
- May-2016
- Publisher
- SPRINGER/PLENUM PUBLISHERS
- Keywords
- Thiadiazolo[3,4-c]pyridine]; Benzodithiophene; Photophysical studies; Stille reaction; Organic field-effect transistors
- Citation
- JOURNAL OF FLUORESCENCE, v.26, no.3, pp.1045 - 1052
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF FLUORESCENCE
- Volume
- 26
- Number
- 3
- Start Page
- 1045
- End Page
- 1052
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/154727
- DOI
- 10.1007/s10895-016-1792-5
- ISSN
- 1053-0509
- Abstract
- A novel thiadiazolo[3,4-c]pyridine] based donor-acceptor (D-A) copolymer, poly[4,8-bis(triisopropylsilylethynyl)benzo[1,2-b:4,5-b']dithiophene-2,6-diyl-alt-[4,7-bis(4-(2-ethylhexyl)thiophen-2-yl)-[1,2,5]thiadiazolo[3,4-c]pyridine] (PTBDTPT), containing triisopropylsilylethynyl(TIPS)benzo[1,2-b:4,5-b']dithiophene as a donor is synthesized by Stille polymerization reaction. All the important photo physical prerequisites for organic field-effect transistor (OFET) application such as strong and broad optical absorption, thermal stability, and compatible HOMO-LUMO levels can be accomplished and combined on one macromolecule. Optical band gap of the polymer was found to be 1.61 eV as calculated from its film onset absorption edge. The hole mobility of bottom gate OFET using the synthesized polymer as an active channel is found to be 1.92 X 10(-2) cm V-1 s(-1) with the On/Off ratio of 25. The photophysical study suggests that PTBDTPT is promising candidate for future large area organic electronic applications.
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