Abstract

The improvement of lead halide perovskites solar cells (PSC) by hydrophobic metal-organic frameworks (MOF) is one of the promising tools for modern photovoltaic technology to achieve stable and efficient thin-film devices. To show the MOF applicability for PSC, we incorporate two types of MOF: NH2-MIL-53(Al) and basolite Z1200 in n-i-p mesoporous MAPbI3 based solar cells that can add 2.2% efficiency by increasing main photovoltaic parameters. The simplicity of the proposed MOF’s integration allows to use and adopt this approach to incorporate other frameworks for thin-film perovskite devices.

Highlights

  • Perovskite solar cells (PSC) present the new era for thin film photovoltaic technology due to unique properties of active material such as an tuneable and direct band gap, high light absorption coefficient and fabrication simplicity

  • Each kind of metalorganic frameworks (MOF) nanocrystals were dropped on the planar mesoporous TiO2 contained FTO substrates and spin coated at 1000 rpm for 10 s

  • The chemical formulas of NH2-MIL-53(Al) and Basolite Z1200 compounds are presented in figure 1

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Summary

Introduction

Perovskite solar cells (PSC) present the new era for thin film photovoltaic technology due to unique properties of active material such as an tuneable and direct band gap, high light absorption coefficient and fabrication simplicity. Perovskite thin films prepared by chemical methods contain many charged defect centers up to 1015/cm3 [1] due to the rapid crystal growth and a chemically active surface area. The choice of organic chains is crucial for thin film perovskite as they can protect a contained material from chemical reactions. The perovskite film crystallization improvement by MOFs and nanoparticles were previously confirmed in a few works [2-7], whereas in our study we compare Basolite Z1200 and NH2-MIL-53(Al) influence on the main photovoltaic properties of PSCs

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