Next-generation CsPbBr ₃ perovskite nanocrystal chloride sensors: stability engineering and halide-exchange mechanisms in aqueous, biological, and environmental media

Mohamed Abu Shuheil; Ahmed Aldulaimi; Subhashree Ray; Talal Aziz Qassem; Gunjan Garg; Renu Sharma; Dilbar Urazbaeva; Sabokhat Sadikova; Sharmin Smaeilpour

doi:10.1039/d5ra09798c

January 1, 2026RSC AdvancesOpen Access

Next-generation CsPbBr ₃ perovskite nanocrystal chloride sensors: stability engineering and halide-exchange mechanisms in aqueous, biological, and environmental media

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Key Points

The study aims to investigate the reversible chloride sensing capabilities of stability-engineered CsPbBr3 nanocrystals through halide-exchange mechanisms.
Stability-engineered CsPbBr3 nanocrystals were synthesized and characterized.
Chloride sensing was assessed through Br-/Cl- exchange observed in aqueous and biological media.
Photoluminescence shifts were measured to quantify the sensing response.
Reversible chloride sensing was observed with a significant green-to-blue photoluminescence shift.
The sensing mechanism involved lattice contraction correlated with ion exchange.
Demonstrated stable performance under various environmental conditions.

Implication

Demonstrates reversible chloride sensing in biological media, indicating broad environmental application.

Abstract

Stability-engineered CsPbBr 3 nanocrystals enable reversible chloride sensing through Br − /Cl − exchange, causing lattice contraction and a predictable green-to-blue photoluminescence shift for portable optical detection.

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Cite This Study

Shuheil et al. (2026) studied this question.

synapsesocial.com/papers/6a0ff362d674f7c03778c082 https://doi.org/10.1039/d5ra09798c

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Next-generation CsPbBr ₃ perovskite nanocrystal chloride sensors: stability engineering and halide-exchange mechanisms in aqueous, biological, and environmental media

Key Points

Implication

Abstract

Discussion

Cite This Study

Next-generation CsPbBr ₃ perovskite nanocrystal chloride sensors: stability engineering and halide-exchange mechanisms in aqueous, biological, and environmental media

Key Points

Implication

Abstract

Discussion

Cite This Study

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