Interface engineering is one of the promising strategies for the long-term stabilization of perovskite solar cells (PSCs), preventing chemical decomposition induced by external agents and promoting fast charge transfer. Recently, MXenes-2D structured transition metal carbides and nitrides with various functionalization ((sic)O, -F, -OH) have demonstrated high potential for mastering the work function in halide perovskite absorbers and have significantly improved the n-type charge collection in solar cells. This work demonstrates that MXenes allow for efficient stabilization of PSCs besides improving their performances. A mixed composite bathocuproine:MXene, that is, (BCP:MXene) interlayer, is introduced at the interface between an electron-transport layer (ETL) and a metal cathode in the p-i-n device structure. The investigation demonstrates that the use of BCP:MXene interlayer slightly increases the power conversation efficiency (PCE) for PSCs (from 16.5 for reference to 17.5%) but dramatically improves the out of Glove-Box stability. Under ISOS-L-2 light soaking stress at 63 +/- 1.5 degrees C, the T80 (time needed to reduce efficiency down to 80% of the initial one) period increases from 460 to > 2300 hours (h).

Yakusheva, A., Saranin, D., Muratov, D., Gostishchev, P., Pazniak, H., Di Vito, A., et al. (2022). Photo Stabilization of p-i-n Perovskite Solar Cells with Bathocuproine: MXene. SMALL, 18(37) [10.1002/smll.202201730].

Photo Stabilization of p-i-n Perovskite Solar Cells with Bathocuproine: MXene

Gostishchev, Pavel;Di Vito, Alessia;Di Carlo, Aldo
2022-09-01

Abstract

Interface engineering is one of the promising strategies for the long-term stabilization of perovskite solar cells (PSCs), preventing chemical decomposition induced by external agents and promoting fast charge transfer. Recently, MXenes-2D structured transition metal carbides and nitrides with various functionalization ((sic)O, -F, -OH) have demonstrated high potential for mastering the work function in halide perovskite absorbers and have significantly improved the n-type charge collection in solar cells. This work demonstrates that MXenes allow for efficient stabilization of PSCs besides improving their performances. A mixed composite bathocuproine:MXene, that is, (BCP:MXene) interlayer, is introduced at the interface between an electron-transport layer (ETL) and a metal cathode in the p-i-n device structure. The investigation demonstrates that the use of BCP:MXene interlayer slightly increases the power conversation efficiency (PCE) for PSCs (from 16.5 for reference to 17.5%) but dramatically improves the out of Glove-Box stability. Under ISOS-L-2 light soaking stress at 63 +/- 1.5 degrees C, the T80 (time needed to reduce efficiency down to 80% of the initial one) period increases from 460 to > 2300 hours (h).
set-2022
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore ING-INF/01
English
MXenes
Ti 3C 2T x
inverted 2D materials
perovskite solar cells
photo stability
thermal stability
Yakusheva, A., Saranin, D., Muratov, D., Gostishchev, P., Pazniak, H., Di Vito, A., et al. (2022). Photo Stabilization of p-i-n Perovskite Solar Cells with Bathocuproine: MXene. SMALL, 18(37) [10.1002/smll.202201730].
Yakusheva, A; Saranin, D; Muratov, D; Gostishchev, P; Pazniak, H; Di Vito, A; Le, Ts; Luchnikov, L; Vasiliev, A; Podgorny, D; Kuznetsov, D; Didenko, S; Di Carlo, A
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/345806
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