Recyclability of CsPbBr<sub>3</sub> quantum dot glass nanocomposites for their long-standing use in white LEDs

Vahedigharehchopogh, Naji; Erol, Erdinç; Kıbrıslı, Orhan; Genç, Aziz; Ersundu, Miray Çelikbilek; Ersundu, Ali Erçin

doi:10.1039/d2tc03568e

Cited by 4 publications

(3 citation statements)

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“…Naji et al used periodic melt quenching and heattreatment processes to confirm its recyclable emission properties and fabricated a white LED to prove the structural and optical integrity of these composites. [177] WLED constructed from a blue LED chip, CsPbBr 3 NCs@glass composite, and a commercial red phosphor showed an aLE of 68.3 lm W −1 at a driving current of 20 mA. Lin et al reported the use of PeNCs@glass composite for backlight displays, reaching high PLQE for CsPbBr 1.5 I 1.5 NCs@glass (≈80%) and almost 100% for CsPbBr 3 NCs@glass composites.…”

Section: Leds and Displaysmentioning

confidence: 99%

“…used periodic melt quenching and heat‐treatment processes to confirm its recyclable emission properties and fabricated a white LED to prove the structural and optical integrity of these composites. [ 177 ] WLED constructed from a blue LED chip, CsPbBr 3 NCs@glass composite, and a commercial red phosphor showed an aLE of 68.3 lm W −1 at a driving current of 20 mA.…”

Section: Applications Of Cspbx3 Ncs@glass Compositesmentioning

confidence: 99%

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Exploring CsPbX₃ (X = Cl, Br, I) Perovskite Nanocrystals in Amorphous Oxide Glasses: Innovations in Fabrication and Applications

Samiei,

Soheyli,

Vighnesh

et al. 2023

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Metal halide perovskites with excellent optical and electronic properties have become a trending material in the current research. However, their limited stability under ambient conditions degrades quality and threatens their potential commercialization as optoelectronic devices. Various approaches are adopted to improve the stability of perovskite nanocrystals (PeNC) while maintaining their advantageous optical properties, particularly strong luminescence. Among different possible improvement strategies, encapsulation of PeNCs within the amorphous glass matrices of inorganic oxides has drawn widespread attention because it ensures high resistance against chemical corrosion and high temperature, thus enhancing their chemical, thermal, and mechanical stability with improved light‐emission characteristics. In this article, two types of materials, namely all‐inorganic metal halide PeNCs and amorphous oxide glasses are briefly introduced, and then the methods are reviewed to fabricate and improve the quality of PeNC@glass composites. These methods are classified into three universal categories: compositional modification, structural modification, and dual encapsulation. In the final part of this review paper, examples of applications of PeNCs@glass composites in light‐emitting devices and displays, data storage and anti‐counterfeiting, lasing, photodetectors and X‐ray detectors, photocatalysis, optical filters, solar concentrators, and batteries are provided.

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Section: Leds and Displaysmentioning

confidence: 99%

Section: Applications Of Cspbx3 Ncs@glass Compositesmentioning

confidence: 99%

Exploring CsPbX₃ (X = Cl, Br, I) Perovskite Nanocrystals in Amorphous Oxide Glasses: Innovations in Fabrication and Applications

Samiei,

Soheyli,

Vighnesh

et al. 2023

Small

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show abstract

“…Several studies reported a combo of ultraviolet or blue light chips and QD glass as the new-generation light-emitting devices for illumination and displays. − However, luminescence devices with near-ultraviolet or blue light-emitting semiconductor LED chips suffer a “sudden decline in efficiency” under the overcurrent situation, unrelated to the poor heat dissipation of the light-emitting diode (LED) chip. Consequently, it is extremely difficult to meet the demand for high-intensity lighting.…”

Section: Introductionmentioning

confidence: 99%

Engineering CsPbX₃ (X = Cl, Br, I) Quantum Dot-Embedded Borosilicate Glass through Self-Crystallization Facilitated by NaF as a Phosphor for Full-Color Illumination and Laser-Driven Projection Displays

Zhou

Liu

et al. 2023

ACS Appl. Mater. Interfaces

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All inorganic perovskite (CsPbX 3 , X = Cl, Br, I) quantum dot (QD) glass samples are considered the next generation of lighting materials for their excellent luminescence properties and stability, but crystallization conditions are difficult to control, which often leads to the inhomogeneous crystallinity of QDs. Here, we provided evidence that the presence of sodium fluoride induced self-crystallization of CsPbBr 3 QDs during routine glass formation without the need for additional heat treatment. We showed that NaF simultaneously affected the network structure of glass and promoted the formation of CsPbBr 3 QDs, that is, Na + ions entered the glass network skeleton, partially interrupting the network structure, while the strong electronegativity of F − ions attracted Cs + and Pb 2+ ions into the gaps formed in the glass networks that had been loosened up by Na + ions, which reduced the activation energy of crystallization processes. Our results showed that NaF-induced CsPbBr 3 QDs glass had excellent thermal stability, high photoluminescence quantum efficiency (49%), and luminescent stability under high-power laser irradiation. Finally, this work also demonstrated the general applicability of this method in the making of a series of CsPbX 3 (X = Cl, Br, I) QD glass samples by NaF-induced self-crystallization, which drastically expanded the color gamut to a range of full spectrum for luminescence and laser-driven projection displays. We believe that the work presented here represents a new direction for the research and development of full-color gamut inorganic perovskite quantum dot glass samples, which could have a significant impact on the future applications of laser-driven projection displays as well.

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Size-controlled fluorescence of long-term durable CsPbBr3 perovskite quantum dots in tungsten tellurite glasses

Shen

Zhao

et al. 2023

Journal of Luminescence

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Recyclability of CsPbBr₃ quantum dot glass nanocomposites for their long-standing use in white LEDs

Abstract: The embedding of CsPbBr3 perovskite quantum dots (PQDs) in an inorganic glass matrix not only protects them against chemical, thermal, and photodegradation but also provides an effective strategy to isolate...

Cited by 4 publications

References 58 publications

Exploring CsPbX₃ (X = Cl, Br, I) Perovskite Nanocrystals in Amorphous Oxide Glasses: Innovations in Fabrication and Applications

Exploring CsPbX₃ (X = Cl, Br, I) Perovskite Nanocrystals in Amorphous Oxide Glasses: Innovations in Fabrication and Applications

Engineering CsPbX₃ (X = Cl, Br, I) Quantum Dot-Embedded Borosilicate Glass through Self-Crystallization Facilitated by NaF as a Phosphor for Full-Color Illumination and Laser-Driven Projection Displays

Size-controlled fluorescence of long-term durable CsPbBr3 perovskite quantum dots in tungsten tellurite glasses

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Recyclability of CsPbBr3 quantum dot glass nanocomposites for their long-standing use in white LEDs

Abstract: The embedding of CsPbBr3 perovskite quantum dots (PQDs) in an inorganic glass matrix not only protects them against chemical, thermal, and photodegradation but also provides an effective strategy to isolate...

Cited by 4 publications

References 58 publications

Exploring CsPbX3 (X = Cl, Br, I) Perovskite Nanocrystals in Amorphous Oxide Glasses: Innovations in Fabrication and Applications

Exploring CsPbX3 (X = Cl, Br, I) Perovskite Nanocrystals in Amorphous Oxide Glasses: Innovations in Fabrication and Applications

Engineering CsPbX3 (X = Cl, Br, I) Quantum Dot-Embedded Borosilicate Glass through Self-Crystallization Facilitated by NaF as a Phosphor for Full-Color Illumination and Laser-Driven Projection Displays

Size-controlled fluorescence of long-term durable CsPbBr3 perovskite quantum dots in tungsten tellurite glasses

Contact Info

Product

Resources

About

Recyclability of CsPbBr₃ quantum dot glass nanocomposites for their long-standing use in white LEDs

Exploring CsPbX₃ (X = Cl, Br, I) Perovskite Nanocrystals in Amorphous Oxide Glasses: Innovations in Fabrication and Applications

Exploring CsPbX₃ (X = Cl, Br, I) Perovskite Nanocrystals in Amorphous Oxide Glasses: Innovations in Fabrication and Applications

Engineering CsPbX₃ (X = Cl, Br, I) Quantum Dot-Embedded Borosilicate Glass through Self-Crystallization Facilitated by NaF as a Phosphor for Full-Color Illumination and Laser-Driven Projection Displays