Robust CsPbX₃ (X = Cl, Br, and I) perovskite quantum dot embedded glasses: nanocrystallization, improved stability and visible full-spectral tunable emissions

Abstract

CsPbX3 (X = Cl, Br, I and their mixture) QDs@glass nanocomposites are fabricated via a facile in situ glass crystallization strategy, exhibiting full-spectral visible emissions, superior thermal stability and water resistance.

Recent advances in synthesis and application of perovskite quantum dot based composites for photonics, electronics and sensors

“…Melting-quenching with subsequent heat-treatment is always utilized for inorganic polymers including phospho-silicate glasses [24,93], tellurite-based glasses [94], borosilicate glasses [80,95] and boro-germanate glasses [80,96]. In this process, the properly designed glass matrix and the precursors of perovskite were firstly prepared and mixed together as powders.…”

Semiconductor Quantum Dots‐Embedded Inorganic Glasses: Fabrication, Luminescent Properties, and Potential Applications

“…[82,83] Through modifying the molar ratio of halide sources in glasses, crystallization of whole-family CsPbX 3 (X = Cl, Br, I, and their mixture) NCs in the glass matrix was realized. [84] Multicolor tunable emissions in the entire visible spectral range of 400-750 nm were achieved by changing the Cl/Br/I ratio, as indicated in Figure 13. The decay lifetime gradually increased with the change from CsPbCl 3 to CsPbBr 3 and finally to CsPbI 3 NCs-embedded glasses owing to the enlarged overlap of Pb 6s and halogen p states.…”

Mussel‐Inspired Polymer Grafting on CsPbBr3 Perovskite Quantum Dots Enhancing the Environmental Stability

“…[21][22][23] To enhance long-term environmental stability of the perovskite quantum structures, several approaches have been proposed, such as cross-linking of dynamic ligands, physical coating of polymer/silica/TiO 2 , inserting PQDs into either a polymeric matrix or inorganic matrix such as mesoporous silica or zeolites, which can be helpful for physically and chemically isolating each PQD. [9,[24][25][26][27][28][29][30][31][32][33][34][35][36][37][38] However, the above approaches often sacrifice solvent processability of PQDs, which reduces the applicability of PQDs in various commercial wet processes. Therefore, the development of simple, versatile, and cost-saving PQD modification method enhancing environmental safety of PQDs while upholding solution processability of PQDs is vastly urgent.…”

“…To enhance long‐term environmental stability of the perovskite quantum structures, several approaches have been proposed, such as cross‐linking of dynamic ligands, physical coating of polymer/silica/TiO 2 , inserting PQDs into either a polymeric matrix or inorganic matrix such as mesoporous silica or zeolites, which can be helpful for physically and chemically isolating each PQD . However, the above approaches often sacrifice solvent processability of PQDs, which reduces the applicability of PQDs in various commercial wet processes.…”