UM
Microwave-Assisted Heating Method toward Multicolor Quantum Dot-Based Phosphors with Much Improved Luminescence
Zhou D.3; Wang Y.1; Tian P.2; Jing P.3; Sun M.1; Chen X.1; Xu X.1; Li D.3; Mei S.2; Liu X.2; Zhang W.2; Guo R.2; Qu S.3; Zhang H.1
2018-08-15
Source PublicationACS Applied Materials and Interfaces
ISSN19448252 19448244
Volume10Issue:32Pages:27160-27170
AbstractSolid-state highly photoluminescent quantum dot (QD)-based phosphors attract great scientific interests as color converters because of an increasing demand for white-light-emitting devices. Herein, a microwave-assisted heating method is presented to fabricate multicolor QD-based phosphors within 30 s through microwave-assisted heating of the mixture of QDs and sodium silicate aqueous solution. In the composites, the formed cross-linked networks not only play as a matrix to prevent QD aggregation in solid state but also cause the variation of the refractive index around QDs and the QD surface optimization, which contributes to good stabilities and twice enhancement in photoluminescence quantum yields (69%) compared with the initial QD aqueous solution (33%). Using the QD-based phosphors as color conversion layers, white-light-emitting diodes were realized with controllable color temperature, high color purity, and high color-rendering index (90.3), which show a great potential in display and illumination. Furthermore, the luminescence lifetime of the QD-based phosphors is less than 25 ns. The potential application of the QD-based phosphors in visible light communication was also demonstrated, with the modulation bandwidth achieving 42 MHz.
Keywordaqueous quantum dot phosphors sodium silicate visible light communication white-light-emitting diode
DOI10.1021/acsami.8b06323
URLView the original
Language英語
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Cited Times [WOS]:2   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.Jilin University
2.Fudan University
3.Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences
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Zhou D.,Wang Y.,Tian P.,et al. Microwave-Assisted Heating Method toward Multicolor Quantum Dot-Based Phosphors with Much Improved Luminescence[J]. ACS Applied Materials and Interfaces,2018,10(32):27160-27170.
APA Zhou D..,Wang Y..,Tian P..,Jing P..,Sun M..,...&Zhang H..(2018).Microwave-Assisted Heating Method toward Multicolor Quantum Dot-Based Phosphors with Much Improved Luminescence.ACS Applied Materials and Interfaces,10(32),27160-27170.
MLA Zhou D.,et al."Microwave-Assisted Heating Method toward Multicolor Quantum Dot-Based Phosphors with Much Improved Luminescence".ACS Applied Materials and Interfaces 10.32(2018):27160-27170.
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