Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Electron Acceptors in Organic Solar Cells

유기태양전지의 전자 받개 물질들

  • Kong, Jaemin (Research Institute for Green Energy Convergence Technology, Gyeongsang National University) ;
  • Nam, Sang-Yong (Research Institute for Green Energy Convergence Technology, Gyeongsang National University)
  • 공재민 (경상국립대학교 그린에너지융합연구소) ;
  • 남상용 (경상국립대학교 그린에너지융합연구소)
  • Received : 2021.12.30
  • Accepted : 2022.02.11
  • Published : 2022.04.10
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Abstract

The power conversion efficiency of organic solar cells has reached over 18%. The rapid increase in the efficiency is largely associated with the development of electron acceptors paired with proper electron donor polymers. In this mini review, the progress of organic solar cells is reviewed in terms of the development of electron acceptors. In the first part of the review, fullerene-based electron acceptors that have led the first half of organic solar cell development were dealt with. In the second part of it, nonfullerene-based electron acceptors, which have potentials to overcome the demerits of fullerene-based electron acceptors and opened a new era of organic solar cells, were introduced. Lastly, some suggestions to tackle the efficiency barrier of 20% are given with the summary of the review in the closing section.

최근 유기태양전지의 효율이 18%를 넘어섰다. 이러한 급속한 효율의 증가는 전자 주개 고분자와 짝을 이루는 전자 받개 물질의 개발과 깊은 연관성을 가지고 있다. 이 미니 리뷰에서는 전자 받개 물질의 개발 과정을 통해 유기태양전지의 발전 양상을 살펴본다. 본 리뷰의 첫 번째 파트에서는 유기태양전지 발전의 전반부를 이끌었던 풀러렌 기반 전자 받개 물질에 대해 살펴본다. 그리고 두 번째 파트에서는 풀러렌 기반 전자 받개 물질의 단점들을 극복할 잠재력을 가지고 있으며, 유기태양전지에 새로운 전기를 가져다 준 비(非)플러렌 기반 전자 받개 물질에 대해서 소개한다. 마지막 파트에서는 리뷰의 전체적인 요약과 더불어 20% 효율을 넘어설 전략에 대해 간단히 논의하며 본 리뷰를 마무리한다.

Keywords

Acknowledgement

This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2020R1A6A1A03038697, 2021R1A2C1008968).

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