Large-Area Nonfullerene Organic Photovoltaic Modules with a High Certified Power Conversion Efficiency

Yan Jia Liao, Yu Chao Hsieh, Jui Tso Chen, Lan Sheng Yang, Xin Zhe Jian, Shih Hung Lin, Yi Ru Lin, Li Min Chen, Fenghong Li, Yu Tang Hsiao, Chuang Yi Liao, Yi Ming Chang*, Yu Yu Huang, Cheng Si Tsao, Sheng Fu Horng, Yu Chiang Chao*, Hsin Fei Meng*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


Achieving large-area organic photovoltaic (OPV) modules with reasonable cost and performance is an important step toward commercialization. In this work, solution-processed conventional and inverted OPV modules with an area of 216 cm2 were fabricated by the blade coating method. Film uniformity was controlled by adjusting the fabrication parameters of the blade coating procedure. The influence of the concentration of the solutions of the interfacial materials on OPV module performance was investigated. For OPV modules based on the PM6:Y6 photoactive layer, a certificated power conversion efficiency (PCE) of 9.10% was achieved for the conventional OPV modules based on the TASiW-12 interfacial layer while a certificated PCE of 11.27% was achieved for the inverted OPV modules based on the polyethylenimine (PEI) interfacial layer. As for OPV modules based on a commercially available photoactive layer, PV-X Plus, a PCE of 8.52% was achieved in the inverted OPV modules. A halogen-free solvent, o-xylene, was used as the solvent for PV-X Plus, which makes the industrial production much more environmentally friendly.

Original languageEnglish
Pages (from-to)7911-7918
Number of pages8
JournalACS Applied Materials and Interfaces
Issue number6
StatePublished - 15 Feb 2023


  • blade coating
  • large area
  • modules
  • nonfullerene
  • organic solar cells


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