1.
ChemSusChem
; 9(18): 2679-2685, 2016 Sep 22.
Artigo
em Inglês
| MEDLINE
| ID: mdl-27553898
RESUMO
The solution processing of pinhole-free methylammonium lead triiodide perovskite-C70 fullerene (MAPbI3 :C70 ) blend films on fluorine-doped tin oxide (FTO)-coated glass substrates is presented. Based on this approach, a simplified and robust protocol for the preparation of efficient electron-transport layer (ETL)-free perovskite solar cells is described. Power conversion efficiency (PCE) of 13.6 % under AM 1.5 G simulated sunlight is demonstrated for these devices. Comparative impedance spectroscopy and photostability analysis of the MAPbI3 :C70 and single MAPbI3 films compared with conventional compact TiO2 ETL-based devices are shown. The beneficial impact of using MAPbI3 :C70 blend films is emphasized.