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Stability Comparison of Perovskite Solar Cells Based on Zinc Oxide and Titania on Polymer Substrates
Author(s) -
Dkhissi Yasmina,
Meyer Steffen,
Chen Dehong,
Weerasinghe Hasitha C.,
Spiccia Leone,
Cheng YiBing,
Caruso Rachel A.
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.201501659
Subject(s) - perovskite (structure) , materials science , photovoltaics , chemical engineering , polymer , zinc , degradation (telecommunications) , nanotechnology , oxide , photovoltaic system , metallurgy , composite material , ecology , telecommunications , computer science , engineering , biology
Device scale‐up and long‐term stability constitute two major hurdles that the emerging perovskite solar technology will have to overcome before commercialization. Here, a comparative study was performed between ZnO and TiO 2 electron‐selective layers, two materials that allow the low‐temperature processing of perovskite solar cells on polymer substrates. Although the use of TiO 2 is well established on glass substrates, ZnO was chosen because it can be readily printed at low temperature and offers the potential for the large‐scale roll‐to‐roll manufacturing of flexible photovoltaics at a low cost. However, a rapid degradation of CH 3 NH 3 PbI 3 was observed if it was deposited on ZnO, therefore, the influence of the perovskite film preparation conditions on its morphology and degradation kinetics was investigated. This study showed that CH 3 NH 3 PbI 3 could withstand a higher temperature on TiO 2 than ZnO and that TiO 2 ‐based perovskite devices were more stable than their ZnO analogues.