Abstract

Two simple small molecules are designed and successfully implemented here as hole-transporting material (HTM) in perovskite-based solar cells (PSCs). With the aim of elucidating the interconnection between molecular structure, properties, and their role in the working devices, these HTMs are implemented in both thin planar direct (n-i-p) and inverse (p-i-n) geometries. It is observed how the HTM layer morphology influences the photovoltaic performance. Moreover, from analysis of the different devices, fundamental information is retrieved on the factors influencing small molecule hole extracting/transporting functionality in PSCs. Specifically, two main roles are identified: When HTMs are introduced as growing substrate (p-i-n), there is a positive impact on the device performance via influence of perovskite formation; meanwhile, their efficacy in transporting the holes governs the performance of direct configurations (n-i-p). These findings can be extended to a wide family of small molecule HTMs, providing general rules for refining the design of novel and more efficient ones.

Autore Pugliese

• Ambrico Marianna

Tutti gli autori

• R. Iacobellis; S. Masi; A. Rizzo; R. Grisorio; M. Ambrico; S. Colella; P.F. Ambrico ; G.P. Suranna; A. Listorti; L. De Marco

Titolo volume/Rivista

ACS applied energy materials

Anno di pubblicazione

2018

ISSN

2574-0962

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

Non Disponibile

Numero di citazioni Scopus

Non Disponibile

Ultimo Aggiornamento Citazioni

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Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile