Abstract

To unveil the mechanisms controlling photovoltaic conversion in high-performing perovskite-based meso-structured 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 density functional theory 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.

Autore Pugliese

• Colella Silvia , Gigli Giuseppe , Listorti Andrea

Tutti gli autori

• Roiati V. , Mosconi E. , Listorti A. , Colella S. , Gigli G. , De Angelis F.

Titolo volume/Rivista

NANO LETTERS

Anno di pubblicazione

2014

ISSN

1530-6984

ISBN

Non Disponibile

Numero di citazioni Wos

110

Ultimo Aggiornamento Citazioni

28/04/2018

Numero di citazioni Scopus

116

Ultimo Aggiornamento Citazioni

28/04/2018

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile