ISSN: 0256-1115 (print version) ISSN: 1975-7220 (electronic version)
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In relation to this article, we declare that there is no conflict of interest.
Publication history
Received June 6, 2024
Accepted July 8, 2024
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Most Cited

Towards Stable, 30% Effi cient Perovskite Solar Cells

School of Chemical Engineering and Center for Antibonding Regulated Crystals , Sungkyunkwan University
npark@skku.edu
Korean Journal of Chemical Engineering, December 2024, 41(14), 3657-3668(12), https://doi.org/10.1007/s11814-024-00222-1

Abstract

Solid-state perovskite solar cells (PSCs) were fi rst discovered in 2012, where a power conversion effi ciency (PCE) of 9.7%

was demonstrated along with stability for 500 h at ambient atmosphere. Since then, the PCEs of PSCs have increased

amazingly to over 26%. Moreover, perovskite/silicon tandem solar cells achieved a PCE as high as 34%. Such a superb

photovoltaic performance is due to the inherent optoelectronic properties of halide perovskites. Here, the progress of PSCs

is reported following a detailed description on the discovery of PSCs. The fi rst solid-state PSCs were based on sensitization

concept using a sub-micrometer mesoporous TiO 2 fi lm whose surface was coated with nano-sized methylammonium lead

iodide (MAPbI 3 ), which had evolved to n-i-p and p-i-n planar device structures. Recent high effi ciencies were mostly

demonstrated using formamidinium lead iodide (FAPbI 3 ) perovskite. To increase further the PCE to more than 30%, the

current density should approach 28 mA/cm 2 and fi ll factor 90% while keeping the voltage near 1.2 V using a perovskite

with bandgap less than ~ 1.47 eV (theoretical current density = 29.4 mA/cm 2 ). Thus, a strategy should be well established

to make a defect-minimized perovskite fi lm and the interface-engineered PSCs as well. Finally, eff ective methodology for

improving stability of PSCs is discussed.

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