当前位置: X-MOL 学术Org. Electron. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Star-shaped electron acceptors containing a truxene core for non-fullerene solar cells
Organic Electronics ( IF 3.2 ) Pub Date : 2017-10-10 , DOI: 10.1016/j.orgel.2017.10.009
Kaiwen Lin , Boming Xie , Zhenfeng Wang , Ruihao Xie , Yunping Huang , Chunhui Duan , Fei Huang , Yong Cao

A series of new electron acceptors containing a truxene core with intense optical absorption were synthesized and used for non-fullerene organic solar cells. Due to the weak electron-donating characteristic of truxene core and thereby weak intramolecular charge transfer interaction from electron-donating core to electron-withdrawing end groups, the resulting new acceptors show relatively wide optical band-gap and high-lying lowest unoccupied molecular orbitals (LUMOs), which consequently lead to complementary light spectra with narrow band-gap donor polymers and high open circuit voltage (Voc) in solar cells. Particularly, Tr(Hex)6-3BR, a star-shaped planar acceptor, produced the highest power conversion efficiency of 2.1% with a high Voc of 1.02 V when blended with PTB7-Th.



中文翻译:

含戊烯核的星形电子受体,用于非富勒烯太阳能电池

合成了一系列包含具有强烈光吸收的戊烯核的新电子受体,并将其用于非富勒烯有机太阳能电池。由于tr烯核的弱供电子特性以及由此弱的分子分子电荷从供电子核到吸电子端基的相互作用,所产生的新受体显示出相对较宽的光学带隙和高空位的最低未占据分子轨道( LUMOs),从而导致窄带隙供体聚合物和太阳能电池中的高开路电压(V oc)产生互补光谱。尤其是,星形平面受体Tr(Hex)6 -3BR具有2.1%的最高功率转换效率和较高的功率。与PTB7-Th混合时的V oc为1.02V。

更新日期:2017-10-10
down
wechat
bug