Current Photovoltaic Research

Korea Photovoltaic Society (한국태양광발전학회)
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Investigation of the Effects of ZnO Thin Film Deposition Methods on Inverted Polymer Solar Cells

다양한 박막 형성법을 사용한 ZnO 전자 추출층이 역구조 고분자 태양전지에 미치는 영향 연구

  • Lee, Donggu (Department of Electrical and Computer Engineering, Inter-university Semiconductor Research Center, Seoul National University) ;
  • Noh, Seunguk (Department of Electrical and Computer Engineering, Inter-university Semiconductor Research Center, Seoul National University) ;
  • Sung, Myungmo (Department of Chemistry, Hanyang University) ;
  • Lee, Changhee (Department of Electrical and Computer Engineering, Inter-university Semiconductor Research Center, Seoul National University)
  • 이동구 (서울대학교 전기.정보공학부 반도체 공동연구소) ;
  • 노승욱 (서울대학교 전기.정보공학부 반도체 공동연구소) ;
  • 성명모 (한양대학교 화학과) ;
  • 이창희 (서울대학교 전기.정보공학부 반도체 공동연구소)
  • Received : 2013.03.28
  • Accepted : 2013.04.18
  • Published : 2013.06.30
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Abstract

We investigated the effects of ZnO thin film deposition methods on the performance of inverted polymer solar cells with a structure of ITO/ZnO/P3HT:PCBM/MoO3/Al. The ZnO thin films were deposited by various methods (spin coating of nanoparticles, sol-gel process, atomic layer deposition) and their morphology was analyzed by atomic force microscopy (AFM). The device with ZnO nanoparticle thin films showed the highest power conversion efficiency of 3 % with low series resistance and high shunt resistance. The superior performance of the device with the ZnO nanoparticle layer is attributed to better electron extraction capability.

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Acknowledgement

Supported by : 한국에너지기술평가원(KETEP)