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Development of SnO2 Composites as Electron Transport Layer in Unencapsulated CH3NH3PbI3 Solar Cells

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Portici Research Center—Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Piazzale E. Fermi, 80055 Portici, Italy
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Department of Chemical Sciences, Complesso Universitario Monte Sant’Angelo, University of Naples Federico II, Via Cintia 21, 80126 Naples, Italy
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Department of Physics “Ettore Pancini”, Complesso Universitario Monte Sant’Angelo, University of Naples Federico II, Via Cintia 21, 80126 Naples, Italy
*
Author to whom correspondence should be addressed.
Academic Editor: Philippe Leclère
Solids 2021, 2(4), 407-419; https://doi.org/10.3390/solids2040026
Received: 30 October 2021 / Revised: 30 November 2021 / Accepted: 6 December 2021 / Published: 16 December 2021
(This article belongs to the Special Issue Solids in Europe)
Improving morphological and electronic properties of the electron transport layer (ETL) is a critical issue to fabricate highly efficient perovskite solar cells. Tin dioxide is used as an ETL for its peculiarities such as low-temperature solution-process and high electron mobility and several handlings have been tested to increase its performances. Herein, SnO2:ZnO and SnO2:In2O3 composites are studied as ETL in planar n-i-p CH3NH3PbI3 solar cells fabricated in ambient air, starting from glass/ITO substrates. Morphological, electrical and optical properties of zinc- and indium-oxide nanoparticles (NPs) are investigated. First-principle calculations are also reported and help to further explain the experimental evidences. Photovoltaic performances of full devices show an improvement in efficiency for SnO2:In2O3–based solar cells with respect to pristine SnO2, probably due to a suppression of interfacial charge recombination between ITO/ETL and ETL/perovskite. Moreover, a better homogeneity of SnO2:In2O3 deposition with respect to SnO2:ZnO composites, conducts an increase in perovskite grain size and, consequently, the device performances. View Full-Text
Keywords: electron transport layer; tin dioxide; composites; perovskite solar cell; interfaces electron transport layer; tin dioxide; composites; perovskite solar cell; interfaces
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MDPI and ACS Style

Sannino, G.V.; De Maria, A.; La Ferrara, V.; Rametta, G.; Mercaldo, L.V.; Addonizio, M.L.; Lancellotti, L.; Pecoraro, A.; Muñoz-García, A.B.; Pavone, M.; Delli Veneri, P. Development of SnO2 Composites as Electron Transport Layer in Unencapsulated CH3NH3PbI3 Solar Cells. Solids 2021, 2, 407-419. https://doi.org/10.3390/solids2040026

AMA Style

Sannino GV, De Maria A, La Ferrara V, Rametta G, Mercaldo LV, Addonizio ML, Lancellotti L, Pecoraro A, Muñoz-García AB, Pavone M, Delli Veneri P. Development of SnO2 Composites as Electron Transport Layer in Unencapsulated CH3NH3PbI3 Solar Cells. Solids. 2021; 2(4):407-419. https://doi.org/10.3390/solids2040026

Chicago/Turabian Style

Sannino, Gennaro V., Antonella De Maria, Vera La Ferrara, Gabriella Rametta, Lucia V. Mercaldo, Maria L. Addonizio, Laura Lancellotti, Adriana Pecoraro, Ana B. Muñoz-García, Michele Pavone, and Paola Delli Veneri. 2021. "Development of SnO2 Composites as Electron Transport Layer in Unencapsulated CH3NH3PbI3 Solar Cells" Solids 2, no. 4: 407-419. https://doi.org/10.3390/solids2040026

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