| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 봄 (04/04 ~ 04/06, 대전컨벤션센터) |
| 권호 |
43권 1호 |
| 발표분야 |
분자전자 부문위원회 I |
| 제목 |
In Situ Studies on the Solidification Mechanism of Conjugated Polymer Films Processed by Blade Coating |
| 초록 |
The device performance of organic field-effect transistors (OFETs) using conjugated polymers are highly dependent on the polymer domain size and molecular ordering in polymer films. Due to the importance of thin film morphology, deeper understanding of film formation mechanism during film deposition process in real time has been required to monitor the evolution of polymer packing structures. For this reason, in situ measurements of blade coated conjugated polymers can help reveal the insights into evolution of film morphology. In this study, in situ UV-visible spectroscopy and in situ GIWAXS were performed to elucidate the development of thin film morphology and crystallinity. Thermally controlled thin film formation rate in solution-shearing blade coating can bring drastic variation of the polymer domain size and packing structure. With optimized coating temperature, we can improve the electron mobility in OFETs over 50 times compared to its coating at room temperature. |
| 저자 |
김연주1, Muhammad R. Niazi2, 이세현1, 강민지1, Aram Amassian2, 김동유1
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| 소속 |
1광주과학기술원, 2King Abdullah Univ. of Science and Technology |
| 키워드 |
OFET; in situ study; film formation rate; thin film morphology
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| E-Mail |
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