Perovskite solar cells with carbon back contact (C-PSC) represent a promising architecture that allows for a simplification of the manufacture process and a stabilization of the cell performances. In this work, we designed a fully printable C-PSC using a homemade mesoporous alumina (Al2O3) ink. By increasing the alumina layer thickness we show that fill factor reduces, short-circuit current increases, while open circuit voltage increases until a thickness of 1.2 mu m. In order to improve performances of PSCs, we investigated a water pre-treatment before perovskite deposition. We show that water pre-treatment improves pore filling, leads to a reduction of charge recombination, and improves the conversion of PbI2 crystals into perovskite. The water pre-treatment permits to obtain an average efficiency increasing of 16% with respect to cells without water pre-treatment.

Barichello, J., Vesce, L., Matteocci, F., Lamanna, E., Di Carlo, A. (2019). The effect of water in Carbon-Perovskite Solar Cells with optimized alumina spacer. SOLAR ENERGY MATERIALS AND SOLAR CELLS, 197, 76-83 [10.1016/j.solmat.2019.03.029].

The effect of water in Carbon-Perovskite Solar Cells with optimized alumina spacer

Vesce L.;Matteocci F.;Lamanna E.;Di Carlo A.
2019-01-01

Abstract

Perovskite solar cells with carbon back contact (C-PSC) represent a promising architecture that allows for a simplification of the manufacture process and a stabilization of the cell performances. In this work, we designed a fully printable C-PSC using a homemade mesoporous alumina (Al2O3) ink. By increasing the alumina layer thickness we show that fill factor reduces, short-circuit current increases, while open circuit voltage increases until a thickness of 1.2 mu m. In order to improve performances of PSCs, we investigated a water pre-treatment before perovskite deposition. We show that water pre-treatment improves pore filling, leads to a reduction of charge recombination, and improves the conversion of PbI2 crystals into perovskite. The water pre-treatment permits to obtain an average efficiency increasing of 16% with respect to cells without water pre-treatment.
2019
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore ING-INF/01 - ELETTRONICA
English
Perovskite solar cell; Carbon electrode; Alumina layer; Water treatment; Printing technique; Monolithic solar cell
Barichello, J., Vesce, L., Matteocci, F., Lamanna, E., Di Carlo, A. (2019). The effect of water in Carbon-Perovskite Solar Cells with optimized alumina spacer. SOLAR ENERGY MATERIALS AND SOLAR CELLS, 197, 76-83 [10.1016/j.solmat.2019.03.029].
Barichello, J; Vesce, L; Matteocci, F; Lamanna, E; Di Carlo, A
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/224888
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