Gram-Scale Synthesis and Optical Properties of Self-Trapped-Exciton-Emitting Two-Dimensional Tin Halide Perovskites

Xing, Yifeng; Yin, Jialin; Qiao, Yifei; Zhao, Jie; He, Haiyang; Zhao, Danyang; Zhang, Wanlu; Mei, Shiliang; Guo, Ruiqian

doi:10.3390/nano15110818

This is an early access version, the complete PDF, HTML, and XML versions will be available soon.

Open AccessArticle

Gram-Scale Synthesis and Optical Properties of Self-Trapped-Exciton-Emitting Two-Dimensional Tin Halide Perovskites

by

Yifeng Xing

,

Jialin Yin

,

Yifei Qiao

,

Jie Zhao

,

Haiyang He

,

Danyang Zhao

,

Wanlu Zhang

,

Shiliang Mei

^*

and

Ruiqian Guo

^*

Institute of Future Lighting, Academy for Engineering and Technology, College of Intelligent Robotics and Advanced Manufacturing, Fudan University, Shanghai 200433, China

^*

Authors to whom correspondence should be addressed.

Nanomaterials 2025, 15(11), 818; https://doi.org/10.3390/nano15110818

Submission received: 13 April 2025 / Revised: 26 May 2025 / Accepted: 26 May 2025 / Published: 28 May 2025

(This article belongs to the Special Issue Advanced Research on Low-Dimensional Optoelectronic Nanomaterials and Nanodevices)

Download Versions Notes

Abstract

Lead halide perovskites (LHPs) have superior luminescent properties, but their toxicity hinders their commercialization, arousing interests in tin halide perovskites as environmentally friendly substitutes for LHPs. Herein, we synthesized a series of two-dimensional tin halide perovskite ODASnBr_4-xI_x (ODA denotes 1,8-octanediammonium, X = 0, 1, 2, 3, 4) microcrystals via an aqueous-phase method. The differences between ODASnI₄ and ODASnBr₄ in luminescent properties and morphological characteristics were systematically discussed for the first time and attributed to light-driven ligand-to-metal charge transfer. The prepared ODASnBr₄ has a PL peak at 567 nm and a PL QY of 99%, and the white light-emitting diodes fabricated with ODASnBr₄ and commercial blue phosphors realized a luminous efficacy of up to 96.27 lm/W, which demonstrated the remarkable potential of ODASnBr₄ microcrystals for high-efficiency white light-emitting diode applications.

Keywords: two-dimensional; tin halide perovskite; self-trapped exciton; luminescent properties; white light-emitting diodes

Share and Cite

MDPI and ACS Style

Xing, Y.; Yin, J.; Qiao, Y.; Zhao, J.; He, H.; Zhao, D.; Zhang, W.; Mei, S.; Guo, R. Gram-Scale Synthesis and Optical Properties of Self-Trapped-Exciton-Emitting Two-Dimensional Tin Halide Perovskites. Nanomaterials 2025, 15, 818. https://doi.org/10.3390/nano15110818

AMA Style

Xing Y, Yin J, Qiao Y, Zhao J, He H, Zhao D, Zhang W, Mei S, Guo R. Gram-Scale Synthesis and Optical Properties of Self-Trapped-Exciton-Emitting Two-Dimensional Tin Halide Perovskites. Nanomaterials. 2025; 15(11):818. https://doi.org/10.3390/nano15110818

Chicago/Turabian Style

Xing, Yifeng, Jialin Yin, Yifei Qiao, Jie Zhao, Haiyang He, Danyang Zhao, Wanlu Zhang, Shiliang Mei, and Ruiqian Guo. 2025. "Gram-Scale Synthesis and Optical Properties of Self-Trapped-Exciton-Emitting Two-Dimensional Tin Halide Perovskites" Nanomaterials 15, no. 11: 818. https://doi.org/10.3390/nano15110818

APA Style

Xing, Y., Yin, J., Qiao, Y., Zhao, J., He, H., Zhao, D., Zhang, W., Mei, S., & Guo, R. (2025). Gram-Scale Synthesis and Optical Properties of Self-Trapped-Exciton-Emitting Two-Dimensional Tin Halide Perovskites. Nanomaterials, 15(11), 818. https://doi.org/10.3390/nano15110818

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Menu

Gram-Scale Synthesis and Optical Properties of Self-Trapped-Exciton-Emitting Two-Dimensional Tin Halide Perovskites

Abstract

Share and Cite

Article Metrics

Article Access Statistics

Further Information

Guidelines

MDPI Initiatives

Follow MDPI