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Identifying Fundamental Limitations in Halide Perovskite Solar Cells
Author(s) -
Leong Wei Lin,
Ooi ZiEn,
Sabba Dharani,
Yi Chenyi,
Zakeeruddin Shaik M.,
Graetzel Michael,
Gordon Jeffrey M.,
Katz Eugene A.,
Mathews Nripan
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.201505480
Subject(s) - perovskite (structure) , materials science , photovoltaics , photocurrent , halide , photovoltaic system , trapping , optoelectronics , band gap , open circuit voltage , engineering physics , voltage , chemical engineering , inorganic chemistry , electrical engineering , ecology , chemistry , engineering , biology
The temperature dependence of the principal photovoltaic parameters of perovskite photovoltaics is studied. The recombination activation energy is in good agreement with the perovskite's bandgap energy, thereby placing an upper bound on the open‐circuit voltage. The photocurrent increases moderately with temperature and remains high at low temperature, reinforcing that the cells are not hindered by insufficient thermally activated mobility or carrier trapping by deep defects.