| 학회 |
한국고분자학회 |
| 학술대회 |
2011년 가을 (10/06 ~ 10/07, 김대중 컨벤션센터) |
| 권호 |
36권 2호 |
| 발표분야 |
대학원생 구두발표 |
| 제목 |
Inverted Bulk Heterojunction Solar CellsUsing Conjugated Polyelectrolyte Interfacial Layers |
| 초록 |
We report high-efficiency inverted bulk heterojunction (BHJ) solar cells using multi-charged conjugated polyelectrolytes (CPEs), poly[((((9,9-bis(4-(6-N,N,N-trimethylammonium)hexyl)phenyl)fluorene)bromide)-2,7-diyl)-alt-(benzene-1,4-diyl)] (PFP-NBr) copolymers, with increasing ionic charge carrier density as electron transporting layers (ETLs). The ultraviolet photoelectron spectroscopy results indicate a shift of the vacuum levels at the interface with a corresponding modification of the effective work-function of the ITO cathode. The use of CPE ETL with maximum ionic charge carrier density results in the highest power conversion efficiency (ηe ~ 4.2%) with the highest fill factor of 0.71 for the device comprising a blend of poly(3-hexylthiophene-2,5-diyl) (P3HT) as a donor and [6,6]-phenyl C61-butyric acid methyl ester (PC61BM) as an acceptor, implying that tailoring ionic functionalities in the CPE system may offers the possibilities for increasing ηe of printed BHJ solar cells. |
| 저자 |
이병훈1, 정인환2, 김근진1, 김희주1, 심홍구2, 우한영3, 이광희1
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| 소속 |
1광주과학기술원, 2한국과학기술원, 3부산대 |
| 키워드 |
Conjugated Polyelectrolyte; Bulk Heterojunction Solar Cell
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| E-Mail |
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