2019
DOI: 10.1002/solr.201900135
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Inorganic CsPbIBr2‐Based Perovskite Solar Cells: Fabrication Technique Modification and Efficiency Improvement

Abstract: CsPbIBr2 photovoltaic materials attract remarkable attention in the field of all‐inorganic halide perovskite solar cells (HPSCs) due to their superior humidity stability and heat endurance. Since the first report in 2016, the power conversion efficiency (PCE) of CsPbIBr2‐based HPSCs (Cs‐HPSCs) has increased from 4.7% to 11.53% with an almost 2.5‐fold leap in a short time. Cs‐HPSCs have also become one of the most researched materials in the all‐inorganic perovskite family. Here, the crystal structure and spect… Show more

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Cited by 72 publications
(67 citation statements)
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References 92 publications
(163 reference statements)
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“…The introduction of 1D GNP pattern resulted in ~23% improvement in the PCE primarily due to the improvement in J SC . (Here, we note that although there is a large difference in PCE from the recently reported best e ciency of 10.88% [18,22], our device e ciency of ca. 4% is reasonable because we made them via the very basic one-step coating process without using any improved methods, such as anti-solvent dropping, interface treatment, impurity doping, etc.)…”
Section: Resultscontrasting
confidence: 74%
See 1 more Smart Citation
“…The introduction of 1D GNP pattern resulted in ~23% improvement in the PCE primarily due to the improvement in J SC . (Here, we note that although there is a large difference in PCE from the recently reported best e ciency of 10.88% [18,22], our device e ciency of ca. 4% is reasonable because we made them via the very basic one-step coating process without using any improved methods, such as anti-solvent dropping, interface treatment, impurity doping, etc.)…”
Section: Resultscontrasting
confidence: 74%
“…Finally, CsPbIBr 2 (another mixed halide CsPe) has been considered as the best choice among all the possible Cs-based inorganic perovskites because it can balance the acceptable band gap of 2.05 eV and possess a superior phase stability in air. Moreover, CsPbIBr 2 has a typical bright red color that is suitable for applications in tandem devices and colorful smart photovoltaic windows [18,19]. Over the years, the PCE of CsPbIBr 2 has developed from the initial state of 4.7% to the recent highest state of 10.88% by introducing various strategies, such as modi cation of the fabrication process to obtain a better lm quality, interface/surface engineering and elemental impurity doping for energy-level control and good charge carrier transport [19][20][21][22][23].…”
Section: Introductionmentioning
confidence: 99%
“…To commercialize the perovskite solar cells, large scale fabrication, improving the stability and efficiency, and efficient reproducibility are the crucial components. However, the organicinorganic hybrid PSCs suffers from compositional degradation under heat and moisture mainly arising from the high volatility of the organic cations [18][19][20]. The organic cations such as MA + and FA + are expected to react with the water molecules or under ambient thermal environment to form hydrates, which cause the instability and degradation of the device [21][22][23][24][25][26].…”
Section: Introductionmentioning
confidence: 99%
“…However, extensive application in the field of photovoltaic is limited because of the low solubility of perovskite precursors (CsBr and PbBr 2 ) in most organic solvents [ 26 ]. In contrast, CsPbIBr 2 displays the best balance features for the all-inorganic PSCs as an absorption material in terms of stability and optical properties [ 27 , 28 , 29 , 30 , 31 , 32 ].…”
Section: Introductionmentioning
confidence: 99%