TY  - JOUR
AU  - Shen, Yi-Fan
AU  - Zhang, Jianqi
AU  - Tian, Chenyang
AU  - Qiu, Dingding
AU  - Wei, Zhixiang
PY  - 2023
TI  - Slot-die coated large-area flexible all-polymer solar cells by non-halogenated solvent
JO  - Nano Research
SN  - 1998-0124
SP  - 13008
EP  - 13013
VL  - 16
IS  - 12
AB  - The slot-die coating is recognized as the most compatible method for the roll-to-roll (R2R) processing of large-area flexible organic solar cells (OSCs). However, the photovoltaic performance of the large-area flexible all-polymer solar cells was significantly lagging behind that of polymer donors with small molecule non-fullerene acceptors devices. In this work, the 1 cm2 flexible device of an all-polymer system, PTQ10:PYF-T-o, fabricated by slot-die coating, achieves an excellent efficiency of 11.24% via controlling the coating temperatures. It is found that, compared with the donor, the crystallinity of PYF-T-o plays a crucial role in device performance. The all-polymer flexible devices show superior mechanical bending stability, maintaining an efficiency of over 95% of the initial value during a 1000-cycle bending test.
UR  - https://doi.org/10.1007/s12274-023-5861-1
DO  - 10.1007/s12274-023-5861-1