| 학회 |
한국공업화학회 |
| 학술대회 |
2015년 가을 (11/04 ~ 11/06, 제주국제컨벤션센터(ICCJEJU)) |
| 권호 |
19권 2호 |
| 발표분야 |
(에너지저장변환) 레독스 흐름전지와 플랙시블 전지 2 |
| 제목 |
Flawless Photocurrent Extraction from a Thick Polymer Bulk Heterojunction |
| 초록 |
We report a dialkoxyphenylene-difluorobenzothiadiazole based conjugated polymer (PPDT2FBT) which closely tracks theoretical photocurrent production while maintaining a high fill factor in remarkably thick films. The unique behavior of thick PPDT2FBT films arises from physical properties including high vertical carrier mobility, an isotropic morphology with strong, vertical π-π stacking and a suitable energy band structure. These physical characteristics allow efficient photocurrent extraction, internal quantum efficiencies near 100% and power conversion efficiencies over 9% from exceptionally thick active layers in both conventional and inverted architectures. The ability of PPDT2FBT to function efficiently in thick cells allows devices to fully attenuate incident sunlight while providing a pathway to defect-free film processing over large areas, constituting a major advancement towards commercially viable organic solar cells. |
| 저자 |
김진영 |
| 소속 |
울산과학기술대 |
| 키워드 |
photovoltaic devices; conjugated polymers; solar cell
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| E-Mail |
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