| 학회 |
한국화학공학회 |
| 학술대회 |
2020년 가을 (10/14 ~ 10/16, e-컨퍼런스) |
| 권호 |
26권 1호, p.47 |
| 발표분야 |
고분자 |
| 제목 |
Effects of Composition and Chirality on the Performance of Chiral Perylene Diimides/Insulating Polymer Blend Based Phototransistors |
| 초록 |
Introduction of the charge trapping effect is an effective method to enhance the optical performance of organic phototransistors by suppressing the dark current. Herein, organic phototransistors using enantiomeric or racemic n-type organic semiconductor PDI-derivatives PDI-CN2-C6 with insulating polymer polylactic acid were fabricated and investigated. In comparison with pure PDI-CN2-C6 based phototransistors, the blending system greatly enhanced optoelectronic performances and enabled the solution process on the hydrophobic surface. Phototransistors could endure over 1,000 h under ambient conditions, owing to the barrier effect against water and oxygen. In addition, the racemic system showed 3 times higher electron mobility and 12 times higher specific photo-detectivity (1.3 × 1013 Jones) compared with the enantiopure systems, indicating that chiral composition can be used as a tuning parameter in optoelectronic devices. Our systematic study provides a feasible and effective way to achieve high-performance n-type organic phototransistors. |
| 저자 |
안재용, 송인호, Xiaobo Shang, 오준학
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| 소속 |
서울대 |
| 키워드 |
고분자 |
| E-Mail |
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| 원문파일 |
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