1934 cm2 large-area quaternary organic photovoltaic module with 1236% certified efficiency

Our results have proved the synergistic effects of multiple components in organic solar cells, providing an effective strategy for achieving high-performance organic photovoltaic devices and modules

Ziyan Jia; Zeng Chen; Xu Chen; Jizhong Yao; Buyi Yan; Rui Sheng; Haiming Zhu; Yang (Michael) Yang

2020

Scholarcy highlights

  • Donor–acceptor organic solar cells have achieved tremendous progress since the reports of bulk-heterojunction organic solar cells
  • Despite the impressive achievements made by non-fullerene acceptors, the single NFA usually suffers from incomplete absorption of the solar spectrum and relatively low charge mobility compared with perovskite components
  • We have explored a quaternary system, including one polymer donor PM6, one fullerene acceptor PC71BM, and two NFAs Y6 and ITIC
  • We successfully fabricated a series of high-performance multiple OSCs
  • Based on the exploration of quaternary devices, a large-area photovoltaic module was manufactured with a power conversion efficiencies of 13.25%
  • The open-circuit voltage, the short-circuit current-density, and the fill factor were simultaneously improved, promoting an ultimate PCE up to 12.8%
  • The excellent performance of photovoltaic devices and large-area modules proves the synergy of multiple components, paving a way to the commercial application of the high-performance photovoltaic cells
  • Partial power conversion efficiencies Comparison of the Large-area Modules with Areas over 10cm in Recent Years a The integrated JSC calculated from the external quantum efficiency curves of the multiple devices

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