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논문 기본 정보

자료유형
학술저널
저자정보
Sooyong Lee (Kyungpook National University) Jooyeok Seo (Kyungpook National University) Jaehoon Jeong (Kyungpook National University) Chulyeon Lee (Kyungpook National University) Myeonghun Song (Kyungpook National University) Hwajeong Kim (Kyungpook National University) Youngkyoo Kim (Kyungpook National University)
저널정보
한국태양광발전학회 Current Photovoltaic Research Current Photovoltaic Research Vol.5 No.3
발행연도
2017.9
수록면
69 - 74 (6page)

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초록· 키워드

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Here we report the influence of thermal treatment on the performance of high efficiency polymer solar cells with the bulk heterojunction films of poly[4,8-bis(5-(2-ethylhexyl)thiophen-2-yl)benzo[1,2-b:4,5-b"] dithiophene-alt-3-fluorothieno[3,4-b]thiophene-2-carboxylate] (PTB7-Th) and [6,6]-phenyl C<SUB>71</SUB> butyric acid methyl ester (PC<SUB>71</SUB>BM). The crystalline nanostructure of PTB7-Th:PC<SUB>71</SUB>BM layers, which were annealed at three different temperatures, was investigated by employing synchrotron radiation grazing incidence X-ray diffraction (GIXD) technique. Results showed that the device performance was slightly reduced by thermal annealing at 50°C but became significantly poor by thermal annealing at 100°C. The poor device performance by thermal annealing was attributed to the collapse in the crystalline nanostructure of PTB7-Th in the PTB7-Th:PC<SUB>71</SUB>BM layers as evidenced by the GIXD measurements that exhibited huge reduction in the intensity of PTB7-Th (100) peak even at 50°C.

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ABSTRACT
1. Introduction
2. Experimental Section
3. Results and Discussion
4. Conclusions
References

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