| 학회 |
한국공업화학회 |
| 학술대회 |
2016년 가을 (10/26 ~ 10/28, 제주국제컨벤션센터(ICCJEJU)) |
| 권호 |
20권 2호 |
| 발표분야 |
에너지저장변환_포스터 |
| 제목 |
Relationship between Phase-Separated Domain Sizes of Active Layer and Photovoltaic Parameters in All-Polymer Solar Cells |
| 초록 |
The control of the bulk heterojunction (BHJ) morphology in polymer/polymer blends remains a critical hurdle for optimizing all-polymer solar cells (all-PSCs). The relationship between donor/acceptor phase separation, domain size, and the resulting photovoltaic characteristics of poly{2,5-di(2-thienyl)thiophene-alt-6,7-difluoro-2,3-bis(3,4-bi(octyloxy)phenyl)quinoxaline)} and poly{N,N’-bis(2-octyldodecyl-naphthalene-1,4,5,8-bis(dicarboximide)-2,6-diyl)-alt-5,5’-(2,2’-bithiophene)}-based all-PSCs was investigated. We varied the film-processing solvents (chloroform, chlorobenzene, o-dichlorobenzene and p-xylene), thereby manipulating the phase-separation of all-polymer blends with the domain size in the range of 30-300 nm. Our results suggest that the BHJ morphology was not fully optimized for most of the previous high-performance all-PSC systems, and their photovoltaic performance can be further improved by fine-engineering the film morphology. |
| 저자 |
김상우1, 이창연1, Yuxiang Li2, 이원호1, 이영민3, 최준형1, 김태수1, Cheng Wang4, Enrique D. Gomez3, 우한영2, 김범준1
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| 소속 |
1KAIST, 2고려대, 3The Pennsylvania State Univ., 4Lawrence Berkeley National Laboratory |
| 키워드 |
All-polymer solar cell; domain size; phase separation; processing solvent
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| E-Mail |
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