Journal of Adhesion and Interface (접착 및 계면)

The Society of Adhesion and Interface, Korea (한국접착및계면학회)
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Morphology Control of Active Layers for Efficient Organic Indoor Photovoltaics

광활성층 모폴로지 제어를 통한 실내광 유기태양전지의 효율 향상 연구

  • Yongchan Jang (Department of Polymer Science and Engineering, Kumoh National Institute of Technology) ;
  • Soyoung Kim (Department of Polymer Science and Engineering, Kumoh National Institute of Technology) ;
  • Jeonga Kim (Department of Polymer Science and Engineering, Kumoh National Institute of Technology) ;
  • Jongbok Kim (Department of Energy Engineering Convergence, Kumoh National Institute of Technology) ;
  • Wonho Lee (Department of Polymer Science and Engineering, Kumoh National Institute of Technology)
  • 장용찬 (금오공과대학교 고분자공학과) ;
  • 김소영 (금오공과대학교 고분자공학과) ;
  • 김정아 (금오공과대학교 고분자공학과) ;
  • 김종복 (금오공과대학교 에너지공학융합전공) ;
  • 이원호 (금오공과대학교 고분자공학과)
  • Received : 2022.10.19
  • Accepted : 2022.11.21
  • Published : 2022.12.31
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Abstract

Recently, organic semiconductor based indoor photovoltaics have gained attention since they exhibit excellent photovoltaic performance than that of conventional Si-based photovoltaics. In this study, we synthesize the medium bandgap polymer of PTBT and optimize PTBT:PC71BM blend films by introducing solvent additives. To this end, we select DIO and CN solvent additives and vary their contents from 0 to 3 vol%. As a result, we produce the highest power conversion efficiency of 11.31% under LED 1000 lx conditions with DIO (1.5 vol%) + CN (0.5 vol%)

실내광 유기태양전지는 기존 실리콘 태양전지 대비 광전변환효율이 높은 특성 때문에 저 전력의 전자기기나 사물 인터넷의 전력원으로 각광받고 있다. 본 논문은 높은 효율을 나타내는 실내광 유기태양전지를 만들기 위해 미디움-밴드갭을 지니는 광활성층(PTBT:PC71BM)을 합성하고 이의 모폴로지를 제어하고자 하였다. 그 중 하나의 방법으로 용액 첨가제의 종류와 양(0, 1.5, 3.0 vol% DIO, 0.5 vol% CN, 1.5 vol% DIO + 0.5 vol% CN)을 달리해 실험을 진행하여 유기태양전지에 대한 특성을 조사하였다. 그 결과 1.5 vol% DIO + 0.5 vol% CN의 이중 첨가제 시스템에서 최고 효율인 11.31%이 관찰되었다.

Keywords

Acknowledgement

이 연구는 금오공과대학교 학술연구비로 지원되었다(202001630001).

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