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Crosslinked Remote‐Doped Hole‐Extracting Contacts Enhance Stability under Accelerated Lifetime Testing in Perovskite Solar Cells
Author(s) -
Xu Jixian,
Voznyy Oleksandr,
Comin Riccardo,
Gong Xiwen,
Walters Grant,
Liu Min,
Kanjanaboos Pongsakorn,
Lan Xinzheng,
Sargent Edward H.
Publication year - 2016
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201505630
Subject(s) - perovskite (structure) , materials science , doping , hysteresis , oxide , work function , service (business) , layer (electronics) , stability (learning theory) , optoelectronics , nanotechnology , chemical engineering , computer science , metallurgy , physics , economy , quantum mechanics , machine learning , economics , engineering
A crosslinked hole‐extracting electrical contact is reported, which simultaneously improves the stability and lowers the hysteresis of perovskite solar cells. Polymerizable monomers and crosslinking processes are developed to obviate in situ degradation of the under lying perovskite. The crosslinked material is band‐aligned with perovskite. The required free carrier density is induced by a high‐work‐function metal oxide layer atop the device, following a remote‐doping strategy.