Issue 11, 2021

Rational strategies toward efficient and stable lead-free tin halide perovskite solar cells

Abstract

Despite the incredible progress of lead halide perovskite solar cells (LHPSCs), concerns remain regarding their potential impacts on the environment and human heath arising from their toxic and dissolvable lead content. Significant efforts have been devoted to searching lead-free halide perovskites over the past years. Among all these candidates, tin halide perovskites (THPs) have shown the most promise, where the efficiency of THP solar cells (THPSCs) has been progressing steadily. However, a considerable gap still exists between THPSCs and LHPSCs in terms of both efficiency and environmental stability. In this review, we first present a fundamental understanding of the origins of the inadequate efficiency and stability of THPSCs. Subsequently, a comprehensive and up-to-date overview focusing on the strategies addressing these issues facing THPSCs, including composition and dimension tuning, additive engineering and device engineering, is provided. Finally, we discuss the remaining challenges and give a perspective outlining the possible future directions for closing the gap between THPSCs and LHPSCs.

Graphical abstract: Rational strategies toward efficient and stable lead-free tin halide perovskite solar cells

Article information

Article type
Review Article
Submitted
30 nov 2020
Accepted
22 mar 2021
First published
26 mar 2021

Mater. Chem. Front., 2021,5, 4107-4127

Rational strategies toward efficient and stable lead-free tin halide perovskite solar cells

D. He, L. Shen, Y. Bai and L. Wang, Mater. Chem. Front., 2021, 5, 4107 DOI: 10.1039/D0QM01002B

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