Advanced Luminescence Engineering of Inorganic Halide Perovskite Quantum Dots: Stability Enhancement, Lead‐Free Design, and Optoelectronic Applications
Year: 2026
Type: article
Abstract: ABSTRACT Inorganic halide perovskite quantum dots (IHPQDs), such as CsPbX 3 (X = Cl, Br, I), have emerged as highly efficient luminescent nanomaterials owing to their outstanding photoluminescence quantum yields (up to 95%), narrow emission bandwidths, and tunable bandgaps across the visible spectrum. This review highlights recent advances in the luminescence engineering of IHPQDs, emphasizing synthesis strategies, surface passivation, and compositional control aimed at improving stability and reducing toxicity. The photophysical mechanisms governing quantum confinement, radiative recombination, and defect tolerance are discussed in detail, alongside their influence on luminescence efficiency and color purity. Key innovations—including silica encapsulation, phenethylamine ligand modification, Mn 2+ doping, and fluorination—are analyzed as effective approaches to mitigate photodegradation and enhance long‐term operational stability. Lead‐free analogs such as Cs 3 Bi 2 Br 9 and Cs 3 Sb 2 Br 9 demonstrate promising blue emissions (PLQY up to 46%), offering eco‐friendly alternatives for photonic and optoelectronic devices. Finally, this work outlines future directions for integrating IHPQDs into sustainable light‐emitting, photovoltaic, and sensing systems, bridging the gap between laboratory‐scale luminescent materials and scalable commercial technologies.
Source: Luminescence
DOI: 10.1002/bio.70424
Institutions: University of Tabuk, Prince Sattam Bin Abdulaziz University, University of Babylon, Islamic University of Najaf, Islamic University Babylon Campus, Jain University, Chitkara University, Sathyabama Institute of Science and Technology, Sohar University, Symbiosis International University, Islamic Azad University, Tehran
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W7129028092