Phenyl Derivative of Dibenzothiopheno[6,5-b:6′,5′-f]Thieno[3,2-b]Thiophene (DPh-DBTTT): High Thermally Durable Organic Semiconductor for High-Performance Organic Field-Effect Transistors
SCIE
SCOPUS
- Title
- Phenyl Derivative of Dibenzothiopheno[6,5-b:6′,5′-f]Thieno[3,2-b]Thiophene (DPh-DBTTT): High Thermally Durable Organic Semiconductor for High-Performance Organic Field-Effect Transistors
- Authors
- OH, JOON HAK; Lee, Eun-Kyung; Lee, Moo Yeol; Choi, Ajeong; Kim, Joo-Young; Kweon, O. Young; Kim, Jung-Hwa; Jung, Ji Young; Shin, Tae-Joo; Park, Jeong-Il; Lee, Sang Yoon
- Date Issued
- 2017-10
- Publisher
- WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
- Abstract
- Phenyl-substituted heteroacene, diphenyl-dibenzothiopheno[6,5-b:6',5'-f]-thieno[3,2-b]thiophene (DPh-DBTTT), is introduced as a thermally durable high-performance organic semiconductor. The DPh-DBTTT single crystals exhibit hole mobility up to 31.9 cm(2) V-1 s(-1), and the vacuum-deposited DPh-DBTTT thin-film transistors show a maximum mobility of 6.32 cm(2) V-1 s(-1). X-ray crystallographic analysis reveals that the small tilting angle between the phenyl substituent and the DBTTT core reduces the reorganization energy dramatically. The structure-property relationships are thoroughly investigated using atomic force microscopy, transmission electron microscopy, and grazing incidence X-ray diffraction analyses, in addition to charge-transport studies. The vacuum-deposited DPh-DBTTT thin-film transistors show superior thermal durability compared to the core DBTTT, which is highly valuable for device processability.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/38995
- DOI
- 10.1002/aelm.201700142
- ISSN
- 2199-160X
- Article Type
- Article
- Citation
- Advanced Electronic Materials, vol. 3, no. 10, page. 1700142, 2017-10
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