Growth kinetics and optical properties of PbSe quantum dots in dual-phase lithium-aluminum-silicate glass ceramic

Shao, Xin; Gao, Wenkai; Han, Jianjun; Liu, Chao; Ruan, Jian; Zhao, Xiujian

doi:10.1016/j.jeurceramsoc.2020.04.049

Cited by 13 publications

(2 citation statements)

References 24 publications

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“…Four main absorption bands can be observed in the FT-IR spectra. The band at 451 cm –1 belongs to the O–Si–O band bending vibration, and the band at 689 cm –1 corresponds to the B–O–B bending vibration in the [BO 3 ] triangle. The broad band at approximately 1000–1100 cm –1 is the [SiO 4 ] tetrahedral tensile vibration band and the tensile vibration of the [BO 4 ] unit. , The absorption band at 1385 cm –1 is attributed to the asymmetric stretching vibration of the B–O–B bonds in the [BO 3 ] triangle .…”

Section: Resultsmentioning

confidence: 99%

In Situ Growth of High-Quality CsPbBr₃ Quantum Dots with Unusual Morphology inside a Transparent Glass with a Heterogeneous Crystallization Environment for Wide Gamut Displays

Fan

Xuan

et al. 2022

ACS Appl. Mater. Interfaces

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All-inorganic CsPbBr3 perovskite quantum dots (QDs) are considered to be one of the most promising green candidates for the new-generation backlight displays. The pending barriers to their applications, however, lie in their mismatching of the target window of green light, scalable production, susceptibility to the leaching of lead ions, and instability in harsh environments (such as moisture, light, and heat). Herein, high-quality CsPbBr3 QDs with globoid shapes and cuboid shapes were in situ crystallized/grown inside a well-designed glass to produce nanocomposites with peak emission at 526 nm, which not only exhibited photoluminescence quantum yields of 53 and 86% upon 455 and 365 nm excitation, respectively, but also have been imparted of high stability when they were submerged in water and exposed to heat and light. These characteristics, along with their lead self-sequestration capability and easy-to-scale preparation, can enable breakthrough applications for CsPbBr3 QDs in the field of wide color gamut backlit display. A high-performance backlight white LEDs was fabricated using the CsPbBr3 QDs@glass powder and K2SiF6:Mn4+ red phosphor, which shows a color gamut of ∼126% of the NTSC or 94% of the Rec. 2020 standards.

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Section: Resultsmentioning

confidence: 99%

In Situ Growth of High-Quality CsPbBr₃ Quantum Dots with Unusual Morphology inside a Transparent Glass with a Heterogeneous Crystallization Environment for Wide Gamut Displays

Fan

Xuan

et al. 2022

ACS Appl. Mater. Interfaces

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“…Since glass matrixes material have been a popular host material for luminescent inorganic crystals with the ability to drastically improve the stability of the composite materials, researchers have been continually working on PL property control and next-generation applications of luminescent inorganic perovskite nanocrystal encapsulated glass matrix-based composite materials. − For example, Li and co-workers reported high-quality CsPbBr 3 NCs having globoid and cuboid shapes and with the NCs in situ grown on the glass substrate for the application of backlight displays . The constructed composites (CsPbBr 3 NCs@glass in Figure ) showed a PL peak wavelength of 526 nm, PLQYs of 53 and 86% (in the case of 455 and 365 nm excitation), and quite high stability in water and other harsh environments (including exposure to heat and light) due to the presence of protective glass layers .…”

Section: In Situ Growth Of Cspbbr3 Ncs Inside Glassmentioning

confidence: 99%

CsPbX₃ (X = Cl, Br, and I) Nanocrystals in Substrates toward Stable Photoluminescence: Nanoarchitectonics, Properties, and Applications

Zhang,

Yang

2023

Langmuir

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Cesium lead halide (CsPbX 3 , X = Cl, Br, and I) perovskite nanocrystals (NCs) possess great potential in light-emitting diode applications because of their high brightness, low cost, tunable luminescence, and facile synthesis nature. However, these NCs are often disadvantaged by their instability in nonsolvent environment that hinders the practical applications of the material. In order to solve these issues, cesium lead halide NCs prepared using a solvent environment can be placed on substrates to retain the high stability and expand the applicability of the material. This Review focuses on the transfer of the allinorganic cesium lead halide NCs (synthesized in solutions) onto matrix materials and their direct synthesis on these bases, including the inert shell growth (inorganic and organic shell), embedment in matrixes (e.g., metal organic frameworks, porous SiO 2 , glass, ZrO 2 , Al 2 O 3 , and AlOOH), and direct synthesis in substrates. In particular, the strategies for stability and PL property improvement of the materials are also summarized. The purpose of this Review is to provide inspiration for the encapsulation of cesium lead halide NCs with high brightness and stability in matrixes to expand the applicability of these materials in wide color gamut backlighting (e.g., white-light-emitting devices).

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Emerging near‐infrared luminescent materials for next‐generation broadband optical communications

Xu,

Jin,

Park

et al. 2024

InfoMat

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The rapid development of emerging technologies observed in recent years, such as artificial intelligence, machine learning, mobile internet, big data, cloud computing, and the Internet of Everything, are generating escalating demands for expanding the capacity density, and speed in next‐generation optical communications. This poses a significant challenge to existing communication techniques. Within this context, the integration of near‐infrared broadband, tunable, and high‐gain luminescent materials into silicon optical circuits or fiber architectures to transmit and modulate light shows enormous potential for advancing next‐generation communication techniques. Here, this review provides an overview of the recent breakthroughs in near‐infrared luminescent epitaxial/colloidal quantum dots, and metal‐active‐center‐doped materials for broadband optical amplifiers and tunable lasers. We also expound on efforts to enhance the bandwidth and gain of these materials‐based amplifiers and lasers, exploring the challenges associate with developing ultra‐broadband and high‐speed optical communication systems. Additionally, the potential applications in Fifth Generation Fixed Networks, integration with 5G and 6G wireless networks, compensation for current Si electronic based CMOS for high computing capability, and the prospects of these light sources for next‐generation optoelectronic devices are discussed.image

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Growth kinetics and optical properties of PbSe quantum dots in dual-phase lithium-aluminum-silicate glass ceramic

Cited by 13 publications

References 24 publications

In Situ Growth of High-Quality CsPbBr₃ Quantum Dots with Unusual Morphology inside a Transparent Glass with a Heterogeneous Crystallization Environment for Wide Gamut Displays

In Situ Growth of High-Quality CsPbBr₃ Quantum Dots with Unusual Morphology inside a Transparent Glass with a Heterogeneous Crystallization Environment for Wide Gamut Displays

CsPbX₃ (X = Cl, Br, and I) Nanocrystals in Substrates toward Stable Photoluminescence: Nanoarchitectonics, Properties, and Applications

Emerging near‐infrared luminescent materials for next‐generation broadband optical communications

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Growth kinetics and optical properties of PbSe quantum dots in dual-phase lithium-aluminum-silicate glass ceramic

Cited by 13 publications

References 24 publications

In Situ Growth of High-Quality CsPbBr3 Quantum Dots with Unusual Morphology inside a Transparent Glass with a Heterogeneous Crystallization Environment for Wide Gamut Displays

In Situ Growth of High-Quality CsPbBr3 Quantum Dots with Unusual Morphology inside a Transparent Glass with a Heterogeneous Crystallization Environment for Wide Gamut Displays

CsPbX3 (X = Cl, Br, and I) Nanocrystals in Substrates toward Stable Photoluminescence: Nanoarchitectonics, Properties, and Applications

Emerging near‐infrared luminescent materials for next‐generation broadband optical communications

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Product

Resources

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In Situ Growth of High-Quality CsPbBr₃ Quantum Dots with Unusual Morphology inside a Transparent Glass with a Heterogeneous Crystallization Environment for Wide Gamut Displays

In Situ Growth of High-Quality CsPbBr₃ Quantum Dots with Unusual Morphology inside a Transparent Glass with a Heterogeneous Crystallization Environment for Wide Gamut Displays

CsPbX₃ (X = Cl, Br, and I) Nanocrystals in Substrates toward Stable Photoluminescence: Nanoarchitectonics, Properties, and Applications