한국염색가공학회지 (Textile Coloration and Finishing)

  • 제26권4호
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  • Pages.347-352
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  • 2014
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  • 1229-0033(pISSN)
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  • 2234-036X(eISSN)
한국염색가공학회 (The Korean Society of Dyers and Finishers)
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1,2-Dichlorobenzene Solvent를 이용한 고분자 유기태양전지에서 박막 두께에 따른 나노 구조와 열처리 효과

Nanostructure and Thermal Effects Dependent on the Film Thickness in Poly(3-hexylthiophene):Phenyl-C61-butyric Acid Methyl Ester(P3HT:PCBM) Films Fabricated by 1,2-Dichlorobenzene Solvent for Organic Photovoltaics

  • 이현휘 (포항가속기연구소) ;
  • 김효정 (부산대학교 유기소재시스템공학과)
  • Lee, Hyun Hwi (Pohang Accelerator Laboratory, POSTECH) ;
  • Kim, Hyo Jung (Department of Organic Material Science and Engineering, Pusan National University)
  • 투고 : 2014.09.16
  • 심사 : 2014.10.22
  • 발행 : 2014.12.27
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초록

Film thickness dependent nanostructure evolution by a post annealing was investigated in poly (3-hexylthiophene):phenyl-C61-butyric acid methyl ester(P3HT:PCBM) films for organic solar cells which were fabricated by dichlorobenzene(DCB) solvent. In case of a 70nm thin film, the thermal annealing process affected to slight increment of the P3HT crystals in the surface region. On the other hand, large number of small sized P3HT crystals near the surface region was formed in the 200nm thick film. The solar cell devices showed the 3% power conversion efficiency(PCE) in 1:0.65 and 1:1 ratio(by weight) of P3HT and PCBM in 70nm and 200nm thickness conditions, respectively. Despite to the similar PCE, the short circuit current Jsc was different in 70nm and 200nm devices, which was related to the different nanostructure of P3HT:PCBM after thermal annealing.

키워드

참고문헌

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