Highly efficient luminescence and enhanced stability of nanocomposites by encapsulating perovskite quantum dots in defect-related luminescent silica nanospheres

Wang, Jianru; Jia, Guang; Kong, Hanxiao; Li, Huilin; Zuo, Rumeng; Yang, Yan; Zhang, Cuimiao

doi:10.1016/j.apsusc.2022.153258

Cited by 15 publications

(3 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the Ni 2+ -doped samples preserve higher than 50% of the initial emission intensity after a 5-week storage period (Figure ), demonstrating the great improvement of storage stability for PQDs after Ni 2+ incorporation. As we know, the CsPbI 3 red PQDs are easily affected by ultraviolet rays, high temperature, and humidity in the air and thus undergo phase transformation, thereby leading to phase instability and serious luminescence quenching . In contrast, the Ni 2+ doping results in the lattice shrinkage of the CsPbI 3 crystal and improves the stability of the CsPbI 3 crystal configuration.…”

Section: Resultsmentioning

confidence: 99%

“…As we know, the CsPbI 3 red PQDs are easily affected by ultraviolet rays, high temperature, and humidity in the air and thus undergo phase transformation, thereby leading to phase instability and serious luminescence quenching. 43 In contrast, the Ni 2+ doping results in the lattice shrinkage of the CsPbI 3 crystal and improves the stability of the CsPbI 3 crystal configuration. The poor stability is the bottleneck that restricts the application of CsPbI 3 PQDs in fields of LEDs and other photoelectric devices.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Simultaneous Enhancement of the Luminescence Intensity and Stability of Deep-Red CsPbI₃ Perovskite Quantum Dots Achieved by a Doping Strategy

Wang

Zhang

et al. 2023

Langmuir

Self Cite

View full text Add to dashboard Cite

The phase instability of CsPbI3 perovskite quantum dots (PQDs) restricts their practical applications due to the easy conversion from the luminescent cubic phase to the non-luminescent orthorhombic phase. The elemental doping route has been regarded as one of the most effective strategies to achieve high-quality PQDs-based phosphors. Herein, a stoichiometric amount of nickel chloride (NiCl2) has been effectively doped into the CsPbI3 lattice. The incorporation of Ni2+ ions has little effect on the crystal phase, structure, and morphology of the CsPbI3 PQDs but greatly influences their luminescence properties. The Ni2+ doping not only improves the luminescence performance but also greatly enhances the stability against temperature, storage time, and polar solvent. The formation process and luminescence and stability improvement mechanisms have been discussed. Moreover, the influence of a series of other metal chlorides (KCl, NaCl, MgCl2, ZnCl2, SnCl2, and CaCl2) on the luminescence performance of CsPbI3 PQDs has been systematically investigated, revealing that the luminescence intensity increases by introducing CaCl2, SnCl2, or ZnCl2 but decreases after doping MgCl2, NaCl, or KCl into the CsPbI3 lattice. The as-proposed doping strategy may have a significant impact on tackling the intrinsic instability of all-inorganic CsPbX3 PQDs, shedding light on their future applications in light-emitting diode (LED) devices and solid-state lighting.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: ■ Results and Discussionmentioning

confidence: 99%

Simultaneous Enhancement of the Luminescence Intensity and Stability of Deep-Red CsPbI₃ Perovskite Quantum Dots Achieved by a Doping Strategy

Wang

Zhang

et al. 2023

Langmuir

Self Cite

View full text Add to dashboard Cite

show abstract

“…PSCs encapsulated with modified epoxy exhibited superior operational stability under continuous light irradiation over 1000 h [186]. Besides, other novel materials like graphene, SiO 2 , or NiO have also been reported to be adopted in encapsulation [188][189][190]. However, simple encapsulation cannot guarantee the stability of perovskite devices to meet the commercialized standard.…”

Section: Encapsulation Materialsmentioning

confidence: 99%

The issues on the commercialization of perovskite solar cells

Zhang,

Wang,

Meng

et al. 2024

Mater. Futures

View full text Add to dashboard Cite

Perovskite solar cells have aroused a worldwide research upsurge in recent years due to their soaring photovoltaic performance, ease of solution processing, and low cost. The power conversion efficiency record is constantly being broken and has recently reached 26.0% in the lab, which is comparable to the established photovoltaic technologies such as crystalline silicon, copper indium gallium selenide (CIGS) and cadmium telluride (CdTe) solar cells. Currently, perovskite solar cells are standing at the entrance of industrialization, where huge opportunities and risks coexist. However, towards commercialization, challenges of up-scaling, stability and lead toxicity still remain, the proper handling of which could potentially lead to the widespread adoption of perovskite solar cells as a low-cost and efficient source of renewable energy. This review gives a holistic analysis of the path towards commercialization for perovskite solar cells. A comprehensive overview of the current state-of-the-art level for perovskite solar cells and modules will be introduced first. We will then discuss the challenges that get in the way of commercialization, and provide insights into the future direction of commercialization of perovskite photovoltaics.

show abstract

ZnO/SiO2 encapsulation of perovskite nanocrystals for efficient and stable light-emitting diodes

Zhang²,

Chen³

et al. 2023

Applied Surface Science

View full text Add to dashboard Cite

Highly efficient luminescence and enhanced stability of nanocomposites by encapsulating perovskite quantum dots in defect-related luminescent silica nanospheres

Cited by 15 publications

References 44 publications

Simultaneous Enhancement of the Luminescence Intensity and Stability of Deep-Red CsPbI₃ Perovskite Quantum Dots Achieved by a Doping Strategy

Simultaneous Enhancement of the Luminescence Intensity and Stability of Deep-Red CsPbI₃ Perovskite Quantum Dots Achieved by a Doping Strategy

The issues on the commercialization of perovskite solar cells

ZnO/SiO2 encapsulation of perovskite nanocrystals for efficient and stable light-emitting diodes

Contact Info

Product

Resources

About

Highly efficient luminescence and enhanced stability of nanocomposites by encapsulating perovskite quantum dots in defect-related luminescent silica nanospheres

Cited by 15 publications

References 44 publications

Simultaneous Enhancement of the Luminescence Intensity and Stability of Deep-Red CsPbI3 Perovskite Quantum Dots Achieved by a Doping Strategy

Simultaneous Enhancement of the Luminescence Intensity and Stability of Deep-Red CsPbI3 Perovskite Quantum Dots Achieved by a Doping Strategy

The issues on the commercialization of perovskite solar cells

ZnO/SiO2 encapsulation of perovskite nanocrystals for efficient and stable light-emitting diodes

Contact Info

Product

Resources

About

Simultaneous Enhancement of the Luminescence Intensity and Stability of Deep-Red CsPbI₃ Perovskite Quantum Dots Achieved by a Doping Strategy

Simultaneous Enhancement of the Luminescence Intensity and Stability of Deep-Red CsPbI₃ Perovskite Quantum Dots Achieved by a Doping Strategy