| 학회 |
한국고분자학회 |
| 학술대회 |
2011년 가을 (10/06 ~ 10/07, 김대중 컨벤션센터) |
| 권호 |
36권 2호 |
| 발표분야 |
대학원생 구두발표 |
| 제목 |
High-performance Narrow-bandgap Polymer-based Bulk-heterojunction Solar Cells using TiOx interlayer |
| 초록 |
We report the fabrication and measurement of bulk-heterojunction (BHJ) solar cells using a narrow-bandgap conjugated polymer, poly[(4,4-didodecyldithieno[3,2-b:2’,3’-d]silole)-2,6-diyl-alt-(2,1,3-benzothiadiazole)-4,7-diyl] (P1) in composites with the fullerene derivative [6,6] phenyl-C71-butylric acid methyl ester (PC71BM). When we introduced 4% of 1-chloronaphtalene (1-CN) as a processing additive to the P1/PC71BM BHJ composite, the morphology of the BHJ layers was improved dramatically, thereby resulting in 70% increase in the short-circuit current (Jsc) with 4.5% power conversion efficiency (PCE). The significant of our results is the fact that the TiOx layer also acts as a lifetime enhancing layer as confirmed in our previous studies. The devices processed with the 1-CN additive and also with the TiOx optical spacer layer exhibited not only enhanced efficiency, but also prolong device lifetime without sacrificing any device performance. |
| 저자 |
권순철1, 박진균2, 공재민3, 김정환1, 김근진1, Guillermo C. Bazan1, 이광희2
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| 소속 |
1광주과학기술원, 2Univ. of California, 3Santa Barbara (UCSB) |
| 키워드 |
bulk-heterojunction; organic; solar cells; optical spacer
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| E-Mail |
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