| 초록 |
Developing non-fullerene electron acceptors have been attracting much interest in recent years and there have been a number of reports on fullerene-free bulk heterojunction organic solar cells, exhibiting PCEs of over 6%. Here, we will discuss on novel dicyanodistyrylbenzene-based non-fullerene acceptors containing naphthalimide moiety (DCS-NI acceptor). Due to favorable nano-morphology formation and outstanding electron transporting properties of DCS-NI acceptor, non-fullerene organic solar cells showed surprisingly high PCE of 2.7% with a P3HT donor and of 5.4% with a high-performance small molecule donor. Comprehensive characterizations, such as blend morphology, device physics, and materials photophysics, will be also presented in this talk. |
