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
2020
Key concepts
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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