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Oxazolium Iodide Modified Perovskites for Solar Cell Fabrication
Author(s) -
Salado Manuel,
Shirzadi Erfan,
Kazim Samrana,
Fei Zhaofu,
Nazeeruddin Mohammad Khaja,
Dyson Paul J.,
Ahmad Shahzada
Publication year - 2018
Publication title -
chempluschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.801
H-Index - 61
ISSN - 2192-6506
DOI - 10.1002/cplu.201700471
Subject(s) - triiodide , perovskite (structure) , iodide , photovoltaic system , solar cell , materials science , perovskite solar cell , ammonium iodide , fabrication , energy conversion efficiency , optoelectronics , chemical engineering , nanotechnology , inorganic chemistry , dye sensitized solar cell , chemistry , medicine , ecology , alternative medicine , electrode , pathology , electrolyte , biology , engineering
Perovskites solar cells are gaining interest due to their attractive solar‐to‐electricity conversion efficiencies; however, they suffer from certain problems, such as suboptimal ion migration and stability issues. We report here on the inclusion of a phenyloxazolium salt (2‐phenyl‐3‐methyloxazolium iodide) in perovskite solar cells based on methyl ammonium lead triiodide (MAPbI 3 ). The fabricated solar cells not only displayed improved photovoltaic properties, but importantly the oxazolium cations can protect the perovskite layers from UV exposure as they down‐convert electromagnetic irradiation; that is, the photons in the UV are absorbed and re‐emitted at a different wavelength. The loading of 2‐phenyl‐3‐methyloxazolium iodide in the perovskite precursor solution was optimized, the resulting perovskite films characterized, and the solar cells fabricated from them evaluated for their performance. Overall, this simple approach serves to optimize the performance parameters of perovskites films for solar cell applications.