2023
DOI: 10.3390/app13137529
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Highly Stable CsPbI3 Perovskite Quantum Dots Enabled by Single SiO2 Coating toward Down-Conversion Light-Emitting Diodes

Abstract: All-inorganic CsPbI3 perovskite quantum dots (PeQDs) have sparked widespread research due to their excellent optoelectronic properties and facile synthesis. However, attaining highly stable CsPbI3 perovskite quantum dots (PeQDs) against heat and polar solvents still remains a challenge and hinders any further practical application. Here, by exploiting (3-aminopropyl) triethoxysilane (APTES) as the sole silica (SiO2) precursor, we report a one-step in situ synthesis of single SiO2-coated CsPbI3 (SiO2-CsPbI3) Pe… Show more

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Cited by 6 publications
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“…All curves can be fitted by a double exponential. 39,40 The average fluorescence lifetimes were 9.81 ns (0%), 12.88 ns (0.35%), 14.49 ns (0.48%) and 12.48 ns (0.90%), respectively. Doping with increasing concentrations of Ca 2+ first increases and then decreases the lifetime of the CsPbI 3 QDs, similar to the tendency observed for PLQY evolution.…”
Section: Resultsmentioning
confidence: 99%
“…All curves can be fitted by a double exponential. 39,40 The average fluorescence lifetimes were 9.81 ns (0%), 12.88 ns (0.35%), 14.49 ns (0.48%) and 12.48 ns (0.90%), respectively. Doping with increasing concentrations of Ca 2+ first increases and then decreases the lifetime of the CsPbI 3 QDs, similar to the tendency observed for PLQY evolution.…”
Section: Resultsmentioning
confidence: 99%