Probing thermal stability in CsPbI ₃ quantum dots with coupled Pb-site doping and halide passivation

Pouriya Naziri; Saba Sepahban Shahgoli; Hadi Jahangiri; Umut Aydemir

doi:10.1039/d5nr04997k

January 1, 2026NanoscaleOpen Access

Probing thermal stability in CsPbI ₃ quantum dots with coupled Pb-site doping and halide passivation

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Key Points

The study aims to investigate how coupled Pb-site doping and halide passivation affect the thermal stability of CsPbI3 quantum dots.
Analyzed the effects of Pb-site substitution in CsPbI3 quantum dots.
Evaluated the impact of halide surface passivation.
Measured photoluminescence quenching at varying temperatures.
Increased lattice rigidity observed with Pb-site doping.
Thermally activated nonradiative pathways suppressed significantly.
Photoluminescence quenching occurs at higher temperatures than in untreated quantum dots.

Implication

Experimental analysis shows improved thermal stability in quantum dots, indicating enhanced performance for applications.

Abstract

Synergistic Pb-site substitution and halide surface passivation increase lattice rigidity and suppress thermally activated nonradiative pathways in CsPbI 3 quantum dots, shifting photoluminescence quenching to higher temperatures.

Discussion

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Cite This Study

Naziri et al. (2026) studied this question.

synapsesocial.com/papers/698c1bb8267fb587c655da32 https://doi.org/10.1039/d5nr04997k

View Full Paper

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Probing thermal stability in CsPbI ₃ quantum dots with coupled Pb-site doping and halide passivation

Key Points

Implication

Abstract

Discussion

Cite This Study

Probing thermal stability in CsPbI ₃ quantum dots with coupled Pb-site doping and halide passivation

Key Points

Implication

Abstract

Discussion

Cite This Study

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