| 학회 |
한국고분자학회 |
| 학술대회 |
2009년 가을 (10/08 ~ 10/09, 광주과학기술원 오룡관) |
| 권호 |
34권 2호 |
| 발표분야 |
에너지변환 및 저장시스템(분자전자 부문위원회) |
| 제목 |
Control of Vertical Distribution of Bulkheterojunction Solar Cells using an Unconventional Spin Casting Method |
| 초록 |
For bulkhetrojunction(BHJ) polymer solar cell, the control of BHJ morphology of the polymer solar cell can act as a critical factor for the device performance. Particularly, each component of P3HT:PCBM mixture has different favorableness to the surface of PEDOT:PSS layer and a thin PCBM layer on the PEDOT:PSS surface could be formed between BHJ layer and PEDOT:PSS layer. The thin PCBM layer might be a hole blocking barrier due to their high HOMO level, thereby reducing the device efficiency. Here, we successfully controlled the vertical distribution of PCBM in the BHJ solar cells by using an unconventional spin casting method which can make a thin film when a sample spinning. As a result, the device fabricated by the unconventional method showed the enhancement of fill factor and photocurrent compared to the conventional device structure. These results indicate that we can have the well-controlled distribution of BHJ as a ideal morphology for the high performance of BHJ solar cells. |
| 저자 |
권순철1, 박성흠2, 김선희3, 김근진1, 김희주1, 이광희1
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| 소속 |
1광주과학기술원, 2Heeger Center for Advanced Materials, 3Gwangju Institute of Science and Technology |
| 키워드 |
vertical; distribution; bulkheterojunction; solar; method
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| E-Mail |
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