High-performance fullerene-free polymer solar cells with 6.31% efficiency
Lin, Y; Zhang, ZhiGuo; Bai, H; Wang, J; Yao, Y; Li, Y; Zhu, D; Zhan, X
| HERO ID | 3125391 |
|---|---|
| In Press | No |
| Year | 2015 |
| Title | High-performance fullerene-free polymer solar cells with 6.31% efficiency |
| Authors | Lin, Y; Zhang, ZhiGuo; Bai, H; Wang, J; Yao, Y; Li, Y; Zhu, D; Zhan, X |
| Journal | Energy and Environmental Science |
| Volume | 8 |
| Issue | 2 |
| Page Numbers | 610-616 |
| Abstract | A nonfullerene electron acceptor (IEIC) based on indaceno[1,2-b:5,6-b']dithiophene and 2-(3-oxo-2,3-dihydroinden-1-ylidene)malononitrile was designed and synthesized. IEIC exhibited good thermal stability, strong absorption in the 500-750 nm region with an extinction coefficient of 1.1 x 10(5) M-1 cm(-1) at 672 nm, deep LUMO energy level (-3.82 eV) close to those of fullerenes, and a relatively high electron mobility of 2.1 x 10(-4) cm(2) V-1 s(-1). Fullerene-free polymer solar cells (PSCs) based on the blends of the IEIC acceptor and a low-bandgap polymer donor PTB7-TH, using a perylene diimide derivative as a cathode interlayer, showed power conversion efficiencies (PCEs) of up to 6.31%, which is among the best PCEs reported for fullerene-free PSCs. |
| Doi | 10.1039/c4ee03424d |
| Wosid | WOS:000349616900020 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |