Issue 19, 2021
From the journal:

Materials Advances

High-performance wide bandgap perovskite solar cells fabricated in ambient high-humidity conditions†

Ugur Deneb Menda, ORCID logo *a   Guilherme Ribeiro,a   Daniela Nunes,a   Tomás Calmeiro, ORCID logo a   Hugo Águas, ORCID logo a   Elvira Fortunato, ORCID logo a   Rodrigo Martinsa  and  Manuel J. Mendes ORCID logo *a  

* Corresponding authors

a i3N/CENIMAT, Department of Materials Science, Faculty of Science and Technology, Universidade NOVA de Lisboa and CEMOP/UNINOVA, Campus de Caparica, 2829-516 Caparica, Portugal
E-mail: u.menda@fct.unl.pt, mj.mendes@fct.unl.pt

Abstract

Lead-halide perovskite solar cells (PSCs) are currently the most promising emergent thin-film photovoltaic technology, having already reached power conversion efficiency (PCE) levels of state-of-the-art wafer-based silicon cells. The class of wide bandgap PSCs has also demonstrated high PCE values, thus becoming highly attractive for top sub-cells in tandem devices constructed with silicon or other types of bottom sub-cells. In this study, wide bandgap double-halide (Cs0.17FA0.83PbI3−xBrx) perovskite absorbers were developed with different bromine content, aiming to obtain bandgap values between 1.66 to 1.74 eV, by a glovebox-free (ambient) procedure. Low-cost inorganic materials, i.e. TiO2 and CuSCN, were used for the electron and hole transport layers, respectively. The 1.70 eV bandgap perovskite resulted in the highest reproducibility and stability (>80% initial PCE after 3500 hours) properties of the PSCs, remarkably attaining 16.4% PCE even with ambient and high humidity (∼70%) fabrication conditions.

Graphical abstract: High-performance wide bandgap perovskite solar cells fabricated in ambient high-humidity conditions

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Article information

DOI
https://doi.org/10.1039/D1MA00432H
Article type
Paper
Submitted
12 May 2021
Accepted
25 Aug 2021
First published
27 Aug 2021
This article is Open Access
Creative Commons BY-NC license

Mater. Adv., 2021,2, 6344-6355

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High-performance wide bandgap perovskite solar cells fabricated in ambient high-humidity conditions

U. D. Menda, G. Ribeiro, D. Nunes, T. Calmeiro, H. Águas, E. Fortunato, R. Martins and M. J. Mendes, Mater. Adv., 2021, 2, 6344 DOI: 10.1039/D1MA00432H

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