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Inverted, Environmentally Stable Perovskite Solar Cell with a Novel Low‐Cost and Water‐Free PEDOT Hole‐Extraction Layer
Author(s) -
Hou Yi,
Zhang Hong,
Chen Wei,
Chen Shi,
Quiroz Cesar Omar Ramirez,
Azimi Hamed,
Osvet Andres,
Matt Gebhard J.,
Zeira Eitan,
Seuring Jan,
KauschBusies Nina,
Lövenich Wilfried,
Brabec Christoph J.
Publication year - 2015
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201500543
Subject(s) - pedot:pss , perovskite (structure) , materials science , layer (electronics) , energy conversion efficiency , perovskite solar cell , extraction (chemistry) , optoelectronics , chemical engineering , nanotechnology , chemistry , organic chemistry , engineering
A power conversion efficiency of 11.8% is demonstrated for planar perovskite solar cell based on acid water‐free poly(3,4‐ethylenedioxythiophene) (PEDOT) as the hole‐transporting layer. This efficiency is further improved to 14.2% using a pH neutralized PEDOT, which reduces the sub‐gap defects at the surface of perovskite. All the active layers reported are solution‐processed at temperatures below 140 °C making it compatible with roll‐to‐roll production.