| Autor: |
Min Guo, Chenyang Wei, Congcong Liu, Kun Zhang, Haijun Su, Keyu Xie, Peng Zhai, Jun Zhang, Lin Liu |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Materials & Design, Vol 209, Iss , Pp 109972- (2021) |
| Druh dokumentu: |
article |
| ISSN: |
0264-1275 |
| DOI: |
10.1016/j.matdes.2021.109972 |
| Popis: |
In order to improve the inherently inefficient hole extraction from perovskite to carbon electrode in planar carbon-based perovskite solar cells (PSCs), herein, a novel composite electrode composed of single-atom Ni doped graphene (Ni-NG) for PSCs is proposed for the first time. Ni-NG with low work function provides a great driving force to improve the hole extraction at the interface. Meanwhile, Ni-NG with abundant single-atom Ni active sites and large specific surface area can accelerate charge transport and strengthen interface contact. Optimized PSCs with composite electrode based on Ni-NG achieved a champion power conversion efficiency (PCE) of 12.39%, higher than PSCs with pristine carbon electrode and composite electrode based on NG. Our work exploits the application of single-atom Ni doped graphene as carbon electrode and provides new insights into the structure design of carbon electrode to obtain efficient planar carbon-based PSCs. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
Full Text from ScienceDirect