| 학회 |
한국고분자학회 |
| 학술대회 |
2013년 가을 (10/11 ~ 10/12, 창원컨벤션센터) |
| 권호 |
38권 2호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
Effect of Nano-scale morphology of Bulk Heterojunction in Polymer solar cell |
| 초록 |
We have synthesized a series of naphtho[2,1-b:3,4-b']dithiophene (NDT) derivatives and incorporated them into bulk-heterojunction solar cells using PC71BM as the electron acceptor. Through a combination of grazing incidence X-ray diffraction and atomic force microscopy we see three distinct nanoscale morphologies emerge across the series. Investigating the device physics using J-V characterization and light intensity dependence studies, we are able to correlate the morphology to the device physics. This has afforded the opportunity to clearly see how altering the nanoscale phase segregation can change the distinct physical processes occurring within a BHJ solar cells. We observe an order of magnitude increase in the efficiency of devices tha utilize self-assembling NDT-based polymers over thier nonassembled counterparts. More importantly, however, these results allow us to shed light on the mechanism behind this differential phase segregation using a polymer self-assembly model. |
| 저자 |
김유진1, 이윤지2, 차효정1, 김윤희2, 권순기1, 박찬언1
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| 소속 |
1포항공과대, 2경상대 |
| 키워드 |
NDT derivative; Bulk heterojunction; Organic solar cell; nano morphology
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| E-Mail |
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