Photoluminescence of Eu3+-doped nanosized microporous titanosilicate—A structural analogue of the mineral pharmacosiderite

Ferdov, Stanislav; Ferreira, Rute A. S.; Lin, Zhi

doi:10.1016/j.jallcom.2007.04.096

Cited by 6 publications

(1 citation statement)

References 11 publications

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“…The defined geometry of the cavities and channels can be transferred to the spatial arrangement of guest species, thereby generating highly organized materials. [1][2][3][4][5][6][7] The luminescence of lanthanide cation-exchanged zeolites has been investigated as luminescent materials and as probes to obtain information on the structure and environment inside the cages where the cations are located. 8, 9 Nevertheless, most pure lanthanide cation-exchanged zeolites suffer from very weak optical absorption due to the forbidden nature of f-f transitions, and the efficiency of pure Eu 3+ -exchanged zeolite is very low.…”

Section: Introductionmentioning

confidence: 99%

The sensitized emission of Eu3+ and Tb3+ by 4-fluorobenzophenone confined in zeolite L microcrystals

Ding

Wang

et al. 2011

Photochem Photobiol Sci

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Disc-shaped zeolite L crystals having a narrow size distribution were prepared and characterized. Luminescent materials were prepared by insertion of 4-fluorobenzophenone into the channels of Ln(3+)-exchanged zeolite L microcrystals via the gas diffusion method. The obtained materials were characterized by SEM, elementary analysis, diffuse reflectance spectroscopy and photoluminescence spectroscopy. Energy transfer from 4-fluorobenzophenone to Eu(3+) or Tb(3+) or to both Eu(3+) and Tb(3+) can occur in the channels. The emission color of the resulting materials can be tuned by varying the relative amount of Eu(3+) and Tb(3+).

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Section: Introductionmentioning

confidence: 99%

The sensitized emission of Eu3+ and Tb3+ by 4-fluorobenzophenone confined in zeolite L microcrystals

Ding

Wang

et al. 2011

Photochem Photobiol Sci

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Improving the Stability of Metal Halide Perovskite Quantum Dots by Encapsulation

et al. 2019

Advanced Materials

330

240

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Metal halide perovskite quantum dots (PQDs), with excellent optical properties and spectacular characteristics of direct and tunable bandgaps, strong light‐absorption coefficients, high defect tolerance, and low nonradiative recombination rates, are highly attractive for modern optoelectronic devices. However, the stability issue of PQDs remains a critical challenge of this newly emerged material despite the recent rapid progress. Here, the encapsulation strategies to improve the stability of PQDs are comprehensively reviewed. A special emphasis is put on the effects of encapsulation, ranging from the improvement of chemical stability, to the inhibition of light‐induced decomposition, to the enhancement of thermal stability. Particular attention is devoted to summarizing the encapsulation approaches, including the sol–gel method, the template method, physical blending, and microencapsulation. The selection principles of encapsulation materials, including the rigid lattice or porous structure of inorganic compounds, the low penetration rate of oxygen or water, as well as the swelling–deswelling process of polymers, are addressed systematically. Special interest is put on the applications of the encapsulated PQDs with improved stability in white light‐emitting diodes, lasers, and biological applications. Finally, the main challenges in encapsulating PQDs and further investigation directions are discussed for future research to promote the development of stable metal halide perovskite materials.

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Thermal flexibility of microporous titanosilicate with distorted pharmacosiderite structure

Ferdov

2012

Microporous and Mesoporous Materials

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Photoluminescence of Eu3+-doped nanosized microporous titanosilicate—A structural analogue of the mineral pharmacosiderite

Cited by 6 publications

References 11 publications

The sensitized emission of Eu3+ and Tb3+ by 4-fluorobenzophenone confined in zeolite L microcrystals

The sensitized emission of Eu3+ and Tb3+ by 4-fluorobenzophenone confined in zeolite L microcrystals

Improving the Stability of Metal Halide Perovskite Quantum Dots by Encapsulation

Thermal flexibility of microporous titanosilicate with distorted pharmacosiderite structure

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