Issue 12, 2024

Interfacial diffused reaction at two-phase solution induced crystallization for high-quality perovskite single crystals

Abstract

Realizing high quality organic–inorganic hybrid perovskite semiconductors with low trap states and reduced toxic-lead (Pb) usage is crucial for the development of sustainable clean photovoltaics. Here, two-phase technology with the advantages of rapid reaction, a simple operation process, low cost, and low-toxicity compared to the traditional method has been developed for the first time for the synthesis of Pb-free MASnI3 single crystals with good crystallinity and stability. The study demonstrates that the reactant concentration, reaction time and temperature are key factors affecting the quality of the MASnI3 single-crystal. The fabricated MASnI3 single-crystal has an absorption onset of 1043 nm and exhibits a narrow bandgap of 1.19 eV. Photodetectors based on the MASnI3 single crystal exhibit good repeatability. The growth mechanism is also proposed in this article, and MA3Bi2I9 and MAPbI3 single crystals were also successfully synthesized based on this technology. Therefore, this two-phase approach offers a novel and effective strategy for growing high-quality single crystals.

Graphical abstract: Interfacial diffused reaction at two-phase solution induced crystallization for high-quality perovskite single crystals

Supplementary files

Article information

Article type
Communication
Submitted
03 Dec 2023
Accepted
09 Feb 2024
First published
20 Feb 2024

J. Mater. Chem. C, 2024,12, 4215-4222

Interfacial diffused reaction at two-phase solution induced crystallization for high-quality perovskite single crystals

Z. Yao, F. Chai, G. Li, Z. Zhang, X. Wang, X. Zuo, L. Li, Q. Zhang and Y. Liu, J. Mater. Chem. C, 2024, 12, 4215 DOI: 10.1039/D3TC04444K

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