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Solar Cells: Ion Migration and the Role of Preconditioning Cycles in the Stabilization of the J – V Characteristics of Inverted Hybrid Perovskite Solar Cells (Adv. Energy Mater. 2/2016)
Author(s) -
De Bastiani Michele,
Dell'Erba Giorgio,
Gandini Marina,
D'Innocenzo Valerio,
Neutzner Stefanie,
Kandada Ajay Ram Srimath,
Grancini Giulia,
Binda Maddalena,
Prato Mirko,
Ball James M.,
Caironi Mario,
Petrozza Annamaria
Publication year - 2016
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.201670009
Subject(s) - materials science , perovskite (structure) , ion , energy (signal processing) , hybrid solar cell , engineering physics , chemical engineering , optoelectronics , energy conversion efficiency , polymer solar cell , physics , quantum mechanics , engineering
Perovskite‐based solar cells manifest often an electrical instability in terms of current‐voltage hysteresis. In article number 1501453, Mario Caironi, Annamaria Petrozza and co‐workers demonstrate how fullerene based electron extracting layers stabilize the short‐circuit photocurrent from the very first J – V scan, thanks to efficient electron extraction, while preconditioning cycles are needed to stabilize the open‐circuit voltage owing to interaction between migrating iodide ions and the charge extraction layer, which result in the doping of the fullerene.