Premium
Electron Transport Layer‐Free Solar Cells Based on Perovskite–Fullerene Blend Films with Enhanced Performance and Stability
Author(s) -
Pascual Jorge,
Kosta Ivet,
Tuyen Ngo T.,
Chuvilin Andrey,
Cabanero German,
Grande Hans J.,
Barea Eva M.,
MoraSeró Iván,
Delgado Juan Luis,
TenaZaera Ramon
Publication year - 2016
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201600940
Subject(s) - triiodide , perovskite (structure) , materials science , fullerene , energy conversion efficiency , dielectric spectroscopy , tin oxide , chemical engineering , thin film , optoelectronics , layer (electronics) , doping , nanotechnology , dye sensitized solar cell , electrode , chemistry , organic chemistry , electrochemistry , electrolyte , engineering
The solution processing of pinhole‐free methylammonium lead triiodide perovskite–C 70 fullerene (MAPbI 3 :C 70 ) 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 MAPbI 3 :C 70 and single MAPbI 3 films compared with conventional compact TiO 2 ETL‐based devices are shown. The beneficial impact of using MAPbI 3 :C 70 blend films is emphasized.