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Inorganic CsPbI 3 Perovskite‐Based Solar Cells: A Choice for a Tandem Device
Author(s) -
Ahmad Waqar,
Khan Jahangeer,
Niu Guangda,
Tang Jiang
Publication year - 2017
Publication title -
solar rrl
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.544
H-Index - 37
ISSN - 2367-198X
DOI - 10.1002/solr.201700048
Subject(s) - tandem , perovskite (structure) , materials science , nanocrystal , band gap , quantum dot solar cell , hybrid solar cell , doping , optoelectronics , solar cell , thermal stability , absorption (acoustics) , phase (matter) , nanotechnology , chemical engineering , chemistry , polymer solar cell , crystallography , composite material , organic chemistry , engineering
Hygroscopicity risk and organic–inorganic hybrid perovskites easy decomposition in solar cells limit their usefulness. Apart from the hybrid organic–inorganic perovskites, inorganic perovskite solar cells display a better stability toward moisture, light soaking, and thermal stressing. However, most inorganic perovskites are inappropriate for single junction or tandem solar cells due to their large bandgaps (>1.8 eV), which eventually results in light absorption loss. Fortunately, cubic CsPbI 3 perovskite (having 1.73 eV bandgap) could potentially serve as top cells in tandem devices with silicon solar cells. Poor phase stability of CsPbI 3 is considered a major obstacle to design CsPbI 3 perovskite solar cells. This review highlights the most recent studies on the progress in CsPbI 3 ‐based solar cell device field. Moreover, this review also summarizes certain strategies to improve phase stability, such as size reduction to nanocrystal or external cations/anions doping, with the aim to improve the devices design.