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Research Article | Open Access

High-Performance and Large-Area Inverted Perovskite Solar Cells Based on NiOx Films Enabled with A Novel Microstructure-Control Technology

Guibin Shen1,2, Xin Li2 ( ), Yuqin Zou3, Hongye Dong1, Dongping Zhu1, Yanglin Jiang1, Xin Ren Ng2, Fen Lin2, Peter Müller-Buschbaum3,4, Cheng Mu1( )
Key Laboratory of Advanced Light Conversion Materials and Biophotonics, Department of Chemistry, Renmin University of China, Beijing 100872, China
Solar Energy Research Institute of Singapore (SERIS), National University of Singapore, Singapore 117574, Singapore
Physik-Department, Lehrstuhl für Funktionelle Materialien, Technische Universität München, James-Franck-Straße 1 85748, Garching Germany
Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Lichtenbergstr. 1 85748, Garching Germany
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Abstract

The improvement in the efficiency of inverted perovskite solar cells (PSCs) is significantly limited by undesirable contact at the NiOX/perovskite interface. In this study, a novel microstructure-control technology is proposed for fabrication of porous NiOX films using Pluronic P123 as the structure-directing agent and acetylacetone (AcAc) as the coordination agent. The synthesized porous NiOX films enhanced the hole extraction efficiency and reduced recombination defects at the NiOX/perovskite interface. Consequently, without any modification, the power conversion efficiency (PCE) of the PSC with MAPbI3 as the absorber layer improved from 16.50% to 19.08%. Moreover, the PCE of the device composed of perovskite Cs0.05(MA0.15FA0.85)0.95Pb(I0.85Br0.15)3 improved from 17.49% to 21.42%. Furthermore, the application of the fabricated porous NiOX on fluorine-doped tin oxide (FTO) substrates enabled the fabrication of large-area PSCs (1.2 cm2) with a PCE of 19.63%. This study provides a novel strategy for improving the contact at the NiOX/perovskite interface for the fabrication of high-performance large-area perovskite solar cells.

Keywords

interfacial contactinverted and large-area perovskite solar cellsphotovoltaic materialsporous NiOX filmsrenewable energy

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Energy & Environmental Materials
Volume 7 Issue 1,
January 2024
Article number: e12504
DOI: 10.1002/eem2.12504

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Cite this article:
Shen G, Li X, Zou Y, et al. High-Performance and Large-Area Inverted Perovskite Solar Cells Based on NiOx Films Enabled with A Novel Microstructure-Control Technology. Energy & Environmental Materials, 2024, 7(1): e12504. https://doi.org/10.1002/eem2.12504

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Received: 28 May 2022
Revised: 22 July 2022
Published: 08 August 2022
© 2022 The Authors.

This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.