| 학회 |
한국고분자학회 |
| 학술대회 |
2013년 가을 (10/11 ~ 10/12, 창원컨벤션센터) |
| 권호 |
38권 2호 |
| 발표분야 |
대학원생 구두발표(영어발표, 발표10분) |
| 제목 |
Electrical Performance of Organic Solar Cells with Additive-Assisted Vertical Phase Separation in the Photoactive Layer |
| 초록 |
Understanding the vertical phase separation of donor and acceptor compounds in organic photovoltaics is requisite for the control of charge transport behavior and the achievement of efficient charge collection. In this study, the vertically phase-separated morphologies of P3HT:PCBM blend films were examined with transmission electron microtomography, dynamic secondary ion mass spectroscopy, and X-ray photoelectron spectroscopy. We comprehensively analyzed the 3D morphologies of the processed films and determined how the solvent additive causes vertical segregation. The photocurrent-voltage characteristics of the vertically segregated blend films are strongly dependent on the 3D morphological organization of the donor and acceptor compounds in the photoactive layer. This dependence is correlated with asymmetric carrier transport at the buried interface and the air surface in the vertically segregated blend films. |
| 저자 |
김민1, 김주현2, 조새벽1, 조길원1
|
| 소속 |
1포항공과대, 2화학공학과 |
| 키워드 |
Organic Solar Cells; Vertical phase separation; Chemical additive
|
| E-Mail |
|
