Nature Communications (Jan 2021)

High performance tandem organic solar cells via a strongly infrared-absorbing narrow bandgap acceptor

  • Zhenrong Jia,
  • Shucheng Qin,
  • Lei Meng,
  • Qing Ma,
  • Indunil Angunawela,
  • Jinyuan Zhang,
  • Xiaojun Li,
  • Yakun He,
  • Wenbin Lai,
  • Ning Li,
  • Harald Ade,
  • Christoph J. Brabec,
  • Yongfang Li

DOI
https://doi.org/10.1038/s41467-020-20431-6
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 10

Abstract

Read online

Development of tandem organic solar cells has been limited by the choice of near-infrared absorbing materials for the rear cell. Here, the authors report a simple strategy to extend the conjugation length of acceptor Y6 and broaden its absorption range to near-infrared region. A tandem organic solar cell with efficiency of 16.4% was achieved.