| 학회 |
한국화학공학회 |
| 학술대회 |
2016년 봄 (04/27 ~ 04/29, 부산 BEXCO) |
| 권호 |
22권 1호, p.56 |
| 발표분야 |
고분자 |
| 제목 |
Systematic optimization of diketopyrrolopyrrole-based organic photodiode for achieving low dark current and high detectivity |
| 초록 |
Here we performed the optimizations of organic photodiodes (OPDs) by systematic approach in terms of hole blocking layer, electron blocking layer, thickness and morphology of active layer. We selected PBDTT-DPP which has a backbone consisting of repeating alkylthienylbenzodithiophene (BDTT) and diketopyrrolopyrrole (DPP) units as an electron-donor. It is known that PBDTT-DPP is a promising electron-donor material for organic solar cell (OSC) application. Considering its superior optoelectronic properties, we fabricated OPDs in conjunction with PC70BM as an electron-acceptor. We observed the effects of the thickness of active layer and the energy level of blocking layers on minimizing the dark currents of OPDs with the investigation of various interfacial layers systematically. We have also experimentally shown the effect of morphology of the active layer on photocurrent of OPDs by changing the deposition method of the active layer or by using post-treatment. |
| 저자 |
윤성원, 심규민, 조욱현, 강민균, 김경환, 정대성
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| 소속 |
중앙대 |
| 키워드 |
고분자전자재료 |
| E-Mail |
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| 원문파일 |
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