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Functional Component Driven Phase Stabilization and Defect Passivation toward Efficient and Air-Stable CsSnI3

Xinzhen Ji1, Yiping Yang1, Xiaoyang Xing1

  • 1Key Laboratory of Materials Physics of Ministry of Education, School of Physics, Zhengzhou University, Daxue Road 75, Zhengzhou 450052, China.

Nano Letters
|December 29, 2025
PubMed
Summary

This study enhances air stability in cesium tin iodide (CsSnI3) near-infrared emitters using dual-ion substitution. This breakthrough enables stable perovskite devices for applications like night vision and medical imaging.

Keywords:
CsSnI3functional componentnear-infrared LEDsphase stabilization

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