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MAPbI3-xClx mixed halide perovskite for hybrid solar cells: the role of chloride as dopant on the transport and structural properties

Published online by Cambridge University Press:  09 October 2014

Silvia Colella
Affiliation:
NNL – National Nanotechnology Laboratory, CNR Istituto Nanoscienze, Distretto Tecnologico, Via Arnesano 16, 73100 Lecce, Italy
Edoardo Mosconi
Affiliation:
Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM, Via Elce di Sotto 8, Perugia, I-06123, Italy.
Paolo Fedeli
Affiliation:
IMEM-CNR, Parco Area delle Scienze 37a, I-43124 Parma, Italy
Andrea Listorti
Affiliation:
NNL – National Nanotechnology Laboratory, CNR Istituto Nanoscienze, Distretto Tecnologico, Via Arnesano 16, 73100 Lecce, Italy Center for Bio-Molecular Nanotechnology - Fondazione Istituto Italiano di Tecnologia, Via Barsanti, 73010 Arnesano (Lecce), ITALY
Aurora Rizzo
Affiliation:
NNL – National Nanotechnology Laboratory, CNR Istituto Nanoscienze, Distretto Tecnologico, Via Arnesano 16, 73100 Lecce, Italy
Francesco Gazza
Affiliation:
IMEM-CNR, Parco Area delle Scienze 37a, I-43124 Parma, Italy
Fabio Orlandi
Affiliation:
IMEM-CNR, Parco Area delle Scienze 37a, I-43124 Parma, Italy Department of Chemistry GIAF, University of Parma, via Usberti 17/A, 43124, Parma, Italy
Patrizia Ferro
Affiliation:
IMEM-CNR, Parco Area delle Scienze 37a, I-43124 Parma, Italy
Tullo Besagni
Affiliation:
IMEM-CNR, Parco Area delle Scienze 37a, I-43124 Parma, Italy
Gianluca Calestani
Affiliation:
IMEM-CNR, Parco Area delle Scienze 37a, I-43124 Parma, Italy Department of Chemistry GIAF, University of Parma, via Usberti 17/A, 43124, Parma, Italy
Filippo De Angelis
Affiliation:
Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM, Via Elce di Sotto 8, Perugia, I-06123, Italy.
Roberto Mosca
Affiliation:
IMEM-CNR, Parco Area delle Scienze 37a, I-43124 Parma, Italy
Giuseppe Gigli
Affiliation:
NNL – National Nanotechnology Laboratory, CNR Istituto Nanoscienze, Distretto Tecnologico, Via Arnesano 16, 73100 Lecce, Italy Center for Bio-Molecular Nanotechnology - Fondazione Istituto Italiano di Tecnologia, Via Barsanti, 73010 Arnesano (Lecce), ITALY Dipartimento di Matematica e Fisica “E. De Giorgi”, Universita’ del Salento, Via per Arnesano, 73100 Lecce, Italy
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Abstract

Hybrid halide perovskites represent one of the most promising solutions toward the fabrication of all solid nanostructured solar cells with improved efficiency and long-term stability. This article aims at investigating the structural properties of the iodide/chloride mixed-halide perovskites and correlating them with the photovoltaic performances of the related sensitized solar cells. We found out that, independently on the components ratio in the precursor solution, Cl incorporation, in a I-based structure, is possible only at relatively low concentration levels (below 3-4%). However, even if the material band-gap remains substantially unchanged, incorporation of Cl as a dopant dramatically improves the charge transport within the perovskite layer, explaining the outstanding performances of meso-superstructured solar cells based on this material.

Type
Articles
Copyright
Copyright © Materials Research Society 2014 

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References

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