| 학회 |
한국공업화학회 |
| 학술대회 |
2015년 봄 (04/29 ~ 05/01, BEXCO (부산)) |
| 권호 |
19권 1호 |
| 발표분야 |
고분자_포스터 |
| 제목 |
Naphtho[2,1-b:3,4-b’]dithiophene-based Bulk Heterojunction Solar Cell: How Molecular Structure Influences Nanoscale Morphology and Photovoltaic Properties |
| 초록 |
Organic bulk heterojunction photovoltaic devices based on a series of three naphtho[2,1-b:3,4-b’]dithiophene (NDT) derivatives blended with phenyl-C71-butyric acid methyl ester were studied. These three derivatives, which have NDT units with various thiophene-chain lengths, were employed as the donor polymers. The influence of their molecular structures on the correlation between their solar-cell performances and their degree of crystallization was assessed. The grazing-incidence angle X-ray diffraction and atomic force microscopy results showed that the three derivatives exhibit three distinct nanoscale morphologies. We correlated these morphologies with the device physics by determining the J–V characteristics and the hole and electron mobilities of the devices. On the basis of our results, we propose new rules for the design of future generations of NDT-based polymers for use in bulk heterojunction solar cells. |
| 저자 |
천예림1, 김유진2, 박성종1, 하연희1, 유셴칭1, 정대성3, 박찬언2, 김윤희1
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| 소속 |
1경상대, 2포항공과대, 3중앙대 |
| 키워드 |
solar cell; polymer
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| E-Mail |
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