Colella, Silvia

De Angelis, Filippo

Gigli, Giuseppe

Listorti, Andrea

Mosconi, Edoardo

Roiati, Vittoria

English

To unveil the mechanisms controlling photovoltaic conversion in high-performing perovskitebased

mesostructured solar cells, we focus on the key role played by the mesoporous oxide/

perovskite interface. We employ several spectroscopic techniques to design a complete scenario

and corroborate our results with first principle DFT calculations. In particular Stark

spectroscopy, a powerful tool allowing interface-sensitive analysis, is employed to prove the

existence of oriented permanent dipoles, consistent with the hypothesis of an ordered perovskite

layer, close to the oxide surface. The existence of a structural order, promoted by specific local

interactions, could be one of the decisive reasons for highly efficient carriers transport within

perovskite films

Scientific Open-access Literature Archive and Repository

Stark Effect in Perovskite/TiO2 Solar Cells: Evidence of Local Interfacial Order

Vittoria Roiati

Edoardo Mosconi

Andrea Listorti

Silvia Colella

Giuseppe Gigli

Filippo De Angelis

Crossref

Nano Letters

Stark Effect in Perovskite/TiO<sub>2</sub> Solar Cells: Evidence of Local Interfacial Order

Open Access Repository

Stark Effect in Perovskite/TiO2Solar Cells: Evidence of Local Interfacial Order

https://www.openaccessrepository.it/record/22538/files/fulltext.pdf

Stark Effect in Perovskite/TiO2Solar Cells: Evidence of Local Interfacial Order

Abstract

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Scientific Open-access Literature Archive and Repository

Crossref

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