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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Microwave-Assisted Preparation of Luminescent Inorganic Materials: A Fast Route to Light Conversion and Storage Phosphors

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Author(s):
de Carvalho, Jose Miranda [1] ; Santos Pedroso, Cassio Cardoso [2] ; de Nichile Saula, Matheus Salgado [3] ; Franca Cunha Felinto, Maria Claudia [4] ; de Brito, Hermi Felinto [3]
Total Authors: 5
Affiliation:
[1] Univ Sao Paulo, Inst Phys, BR-05508900 Sao Paulo, SP - Brazil
[2] Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 - USA
[3] Univ Sao Paulo, Inst Chem, BR-05508000 Sao Paulo, SP - Brazil
[4] Nucl & Energy Res Inst, BR-05508000 Sao Paulo, SP - Brazil
Total Affiliations: 4
Document type: Review article
Source: Molecules; v. 26, n. 10 MAY 2021.
Web of Science Citations: 0
Abstract

Luminescent inorganic materials are used in several technological applications such as light-emitting displays, white LEDs for illumination, bioimaging, and photodynamic therapy. Usually, inorganic phosphors (e.g., complex oxides, silicates) need high temperatures and, in some cases, specific atmospheres to be formed or to obtain a homogeneous composition. Low ionic diffusion and high melting points of the precursors lead to long processing times in these solid-state syntheses with a cost in energy consumption when conventional heating methods are applied. Microwave-assisted synthesis relies on selective, volumetric heating attributed to the electromagnetic radiation interaction with the matter. The microwave heating allows for rapid heating rates and small temperature gradients yielding homogeneous, well-formed materials swiftly. Luminescent inorganic materials can benefit significantly from the microwave-assisted synthesis for high homogeneity, diverse morphology, and rapid screening of different compositions. The rapid screening allows for fast material investigation, whereas the benefits of enhanced homogeneity include improvement in the optical properties such as quantum yields and storage capacity. (AU)

FAPESP's process: 20/10228-2 - Development of MI2MIISn3O8 and MI1.6MII1.6Sn2.8O8 stannate materials doped with rare earth ions with persistent luminescence emission
Grantee:Matheus Salgado de Nichile Saula
Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
FAPESP's process: 17/05195-5 - Structure-property relations of inorganic luminescent materials obtained by microwave-assisted synthesis method
Grantee:Jose Miranda de Carvalho Junior
Support Opportunities: Scholarships in Brazil - Post-Doctoral