Synthesis and Characterization of Ce-Doped Y3Al5O12 (YAG:Ce) Nanopowders Used for Solid-State Lighting
Nano-Ce-doped Y3Al5O12 (YAG:Ce) powders were synthesized by using a sol-gel low temperature combustion method, followed by thermal annealing. The annealing temperature for enriching nanoparticles was optimized and found to be 1000°C. The process for enriching uniform nanoparticles of YAG:Ce powder w...
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doaj-3257f9275d92490aba7b78ac65d3fe7e2020-11-24T21:56:00ZengHindawi LimitedJournal of Nanomaterials1687-41101687-41292014-01-01201410.1155/2014/571920571920Synthesis and Characterization of Ce-Doped Y3Al5O12 (YAG:Ce) Nanopowders Used for Solid-State LightingDo Ngoc Chung0Do Ngoc Hieu1Tran Thi Thao2Vo-Van Truong3Nguyen Nang Dinh4University of Engineering and Technology, Vietnam National University, Hanoi, 144 Xuan Thuy Road, Cau Giay District, Hanoi 10000, VietnamUniversity of Engineering and Technology, Vietnam National University, Hanoi, 144 Xuan Thuy Road, Cau Giay District, Hanoi 10000, VietnamUniversity of Engineering and Technology, Vietnam National University, Hanoi, 144 Xuan Thuy Road, Cau Giay District, Hanoi 10000, VietnamDepartment of Physics, Concordia University, 1455 de Maisonneuve Boulevard W, Montreal, QC, H3G 1M8, CanadaUniversity of Engineering and Technology, Vietnam National University, Hanoi, 144 Xuan Thuy Road, Cau Giay District, Hanoi 10000, VietnamNano-Ce-doped Y3Al5O12 (YAG:Ce) powders were synthesized by using a sol-gel low temperature combustion method, followed by thermal annealing. The annealing temperature for enriching nanoparticles was optimized and found to be 1000°C. The process for enriching uniform nanoparticles of YAG:Ce powder was carried out by using the nanosteam technique (NST). The nanoparticles obtained from this NST treatment had a size in the range of 9–20 nm. Measurements of the photoluminescence spectra of the dispersed YAG:Ce nanoparticles solutions showed a blue shift in the photoemission with a value of ca. 10 nm in the green region. WLEDs made from the blue LED chip coated with the nano-YAG:Ce + MEH-PPV composite epoxy exhibit white light with a broad band luminescent spectrum and a high color rending index (CRI). The photoluminescence spectra of the YAG:Ce nanoparticles showed a potential application of the prepared nanostructured YAG:Ce phosphor not only in energy-efficient solid-state lighting, but also in optoelectronic devices, including organic composite solar cells. In addition, it is suggested that NST can be applied for the enrichment of uniform inorganic nanoparticles.http://dx.doi.org/10.1155/2014/571920 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Do Ngoc Chung Do Ngoc Hieu Tran Thi Thao Vo-Van Truong Nguyen Nang Dinh |
spellingShingle |
Do Ngoc Chung Do Ngoc Hieu Tran Thi Thao Vo-Van Truong Nguyen Nang Dinh Synthesis and Characterization of Ce-Doped Y3Al5O12 (YAG:Ce) Nanopowders Used for Solid-State Lighting Journal of Nanomaterials |
author_facet |
Do Ngoc Chung Do Ngoc Hieu Tran Thi Thao Vo-Van Truong Nguyen Nang Dinh |
author_sort |
Do Ngoc Chung |
title |
Synthesis and Characterization of Ce-Doped Y3Al5O12 (YAG:Ce) Nanopowders Used for Solid-State Lighting |
title_short |
Synthesis and Characterization of Ce-Doped Y3Al5O12 (YAG:Ce) Nanopowders Used for Solid-State Lighting |
title_full |
Synthesis and Characterization of Ce-Doped Y3Al5O12 (YAG:Ce) Nanopowders Used for Solid-State Lighting |
title_fullStr |
Synthesis and Characterization of Ce-Doped Y3Al5O12 (YAG:Ce) Nanopowders Used for Solid-State Lighting |
title_full_unstemmed |
Synthesis and Characterization of Ce-Doped Y3Al5O12 (YAG:Ce) Nanopowders Used for Solid-State Lighting |
title_sort |
synthesis and characterization of ce-doped y3al5o12 (yag:ce) nanopowders used for solid-state lighting |
publisher |
Hindawi Limited |
series |
Journal of Nanomaterials |
issn |
1687-4110 1687-4129 |
publishDate |
2014-01-01 |
description |
Nano-Ce-doped Y3Al5O12 (YAG:Ce) powders were synthesized by using a sol-gel low temperature combustion method, followed by thermal annealing. The annealing temperature for enriching nanoparticles was optimized and found to be 1000°C. The process for enriching uniform nanoparticles of YAG:Ce powder was carried out by using the nanosteam technique (NST). The nanoparticles obtained from this NST treatment had a size in the range of 9–20 nm. Measurements of the photoluminescence spectra of the dispersed YAG:Ce nanoparticles solutions showed a blue shift in the photoemission with a value of ca. 10 nm in the green region. WLEDs made from the blue LED chip coated with the nano-YAG:Ce + MEH-PPV composite epoxy exhibit white light with a broad band luminescent spectrum and a high color rending index (CRI). The photoluminescence spectra of the YAG:Ce nanoparticles showed a potential application of the prepared nanostructured YAG:Ce phosphor not only in energy-efficient solid-state lighting, but also in optoelectronic devices, including organic composite solar cells. In addition, it is suggested that NST can be applied for the enrichment of uniform inorganic nanoparticles. |
url |
http://dx.doi.org/10.1155/2014/571920 |
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