Cesium iodide post-treatment of organic-inorganic perovskite crystals to improve photovoltaic performance and thermal stability

Cesium iodide post-treatment of organic-inorganic perovskite crystals to improve photovoltaic performance and thermal stability

Organic-inorganic perovskites were treated with a CsI solution to improve the photovoltaic performance and stability. Due to the formation of CsPbI 3 and trap filling in Cs 0.05 (FA 0.83 MA 0.17 ) 0.95 Pb(I 0.83 Br 0.17 ) 3 perovskites by CsI treatment, the power conversion efficiency was improved t...

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Veröffentlicht in:Nanoscale 2020-11, Vol.12 (42), p.2165-2169
Hauptverfasser: Kogo, Atsushi, Chikamatsu, Masayuki
Format: Artikel
Sprache:eng
Schlagworte:
Antireflection coatings
Cesium iodides
Energy conversion efficiency
Parameters
Perovskites
Photovoltaic cells
Solar cells
Thermal stability
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Zusammenfassung:Organic-inorganic perovskites were treated with a CsI solution to improve the photovoltaic performance and stability. Due to the formation of CsPbI 3 and trap filling in Cs 0.05 (FA 0.83 MA 0.17 ) 0.95 Pb(I 0.83 Br 0.17 ) 3 perovskites by CsI treatment, the power conversion efficiency was improved to 20.48%. The CsI-treated perovskites exhibited slower degradation under heating at 180 °C than the untreated perovskites. Treating organic-inorganic perovskites with CsI solution improves the photovoltaic performance up to 20.48% and thermal stability.
ISSN:2040-3364
2040-3372
DOI:10.1039/d0nr05435f