Synthesis and Transistor Properties of Asymmetric Oligothiophenes: Relationship between Molecular Structure and Device Performance
- Authors
- An, Tae Kyu; Jang, Sang Hun; Kim, Seul-Ong; Jang, Jaeyoung; Hwang, Jihun; Cha, Hyojung; Noh, Young Ri; Yoon, Soon Byung; Yoon, Yong Jin; Kim, Lae Ho; Chung, Dae Sung; Kwon, Soon-Ki; Kim, Yun-Hi; Lee, Sang-Gyeong; Park, Chan Eon
- Issue Date
- Oct-2013
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- aggregation; oligothiophenes; semiconductors; thin films; transistors
- Citation
- CHEMISTRY-A EUROPEAN JOURNAL, v.19, no.42, pp.14052 - 14060
- Indexed
- SCIE
SCOPUS
- Journal Title
- CHEMISTRY-A EUROPEAN JOURNAL
- Volume
- 19
- Number
- 42
- Start Page
- 14052
- End Page
- 14060
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/161695
- DOI
- 10.1002/chem.201302588
- ISSN
- 0947-6539
- Abstract
- A series of three thiophene-naphthalene-based asymmetric oligomers5-decyl-2,2:5,2:5,2-quaterthiophene (DtT), 5-decyl-5-(naphthalen-2-yl)-2,2:5,2-terthiophene (D3TN), and 5-(4-decylphenyl)-5-(naphthalen-2-yl)-2,2-bithiophene (DP2TN)was synthesized by Suzuki cross-coupling reactions. The long alkyl side chains improved both the solubility of the oligomers in solvents and their tendency to self-assemble. UV/Vis absorption measurements suggested that DtT, D3TN, and DP2TN form H-type aggregates with a face-to-face packing structure. In addition, the three oligomers were found to adopt vertically aligned crystalline structures in films deposited on substrates, as revealed by grazing-incidence wide-angle X-ray scattering. These oligomers were used as the active layers of p-type organic field-effect transistors, and the resulting devices showed field-effect mobilities of 3.3x10(-3)cm(2)V(-1)s(-1) for DtT, 1.6x10(-2)cm(2)V(-1)s(-1) for D3TN, and 3.7x10(-2)cm(2)V(-1)s(-1) for DP2TN. The differences in transistor performances were attributed to the degree of overlap and the morphological differences determined by the molecular structures.
- Files in This Item
-
Go to Link
- Appears in
Collections - 서울 공과대학 > 서울 에너지공학과 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/161695)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.