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Preparation and Thermal Conductivity Enhancement of Boron Nitride Nano-Material PiG Composite

With the improvement of the conversion efficiency of LED chip and fluorescent material and the increasing demand for high-brightness light sources, LED technology has begun to move toward the direction of high-power. However, there is a huge problem that high-power LED must face with a large amount...

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Detalles Bibliográficos
Autores principales: Chen, Zhenhua, Wei, Qinhua, Tang, Gao, Shi, Hongsheng, Qin, Laishun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10053831/
https://www.ncbi.nlm.nih.gov/pubmed/36986000
http://dx.doi.org/10.3390/nano13061106
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author Chen, Zhenhua
Wei, Qinhua
Tang, Gao
Shi, Hongsheng
Qin, Laishun
author_facet Chen, Zhenhua
Wei, Qinhua
Tang, Gao
Shi, Hongsheng
Qin, Laishun
author_sort Chen, Zhenhua
collection PubMed
description With the improvement of the conversion efficiency of LED chip and fluorescent material and the increasing demand for high-brightness light sources, LED technology has begun to move toward the direction of high-power. However, there is a huge problem that high-power LED must face with a large amount of heat generated by high power causing a high temperature thermal decay or even thermal quenching of the fluorescent material in the device, resulting in a reduction of the luminous efficiency, color coordinates, color rendering index, light uniformity, and service life of LED. In order to solve this problem, fluorescent materials with high thermal stability and better heat dissipation were prepared to enhance their performance in high-power LED environments. A variety of boron nitride nanomaterials were prepared by the solid phase-gas phase method. By adjusting the ratio of boric acid to urea in the raw material, different BN nanoparticles and nanosheets were obtained. Moreover, the control of catalyst amount and synthesis temperature can be used to synthesize boron nitride nanotubes with various morphologies. By adding different morphologies and quantities of BN material in PiG (phosphor in glass), the mechanical strength, heat dissipation, and luminescent properties of the sheet can be effectively controlled. PiG prepared by adding the right number of nanotubes and nanosheets has higher quantum efficiency and better heat dissipation after being excited by high power LED.
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spelling pubmed-100538312023-03-30 Preparation and Thermal Conductivity Enhancement of Boron Nitride Nano-Material PiG Composite Chen, Zhenhua Wei, Qinhua Tang, Gao Shi, Hongsheng Qin, Laishun Nanomaterials (Basel) Article With the improvement of the conversion efficiency of LED chip and fluorescent material and the increasing demand for high-brightness light sources, LED technology has begun to move toward the direction of high-power. However, there is a huge problem that high-power LED must face with a large amount of heat generated by high power causing a high temperature thermal decay or even thermal quenching of the fluorescent material in the device, resulting in a reduction of the luminous efficiency, color coordinates, color rendering index, light uniformity, and service life of LED. In order to solve this problem, fluorescent materials with high thermal stability and better heat dissipation were prepared to enhance their performance in high-power LED environments. A variety of boron nitride nanomaterials were prepared by the solid phase-gas phase method. By adjusting the ratio of boric acid to urea in the raw material, different BN nanoparticles and nanosheets were obtained. Moreover, the control of catalyst amount and synthesis temperature can be used to synthesize boron nitride nanotubes with various morphologies. By adding different morphologies and quantities of BN material in PiG (phosphor in glass), the mechanical strength, heat dissipation, and luminescent properties of the sheet can be effectively controlled. PiG prepared by adding the right number of nanotubes and nanosheets has higher quantum efficiency and better heat dissipation after being excited by high power LED. MDPI 2023-03-20 /pmc/articles/PMC10053831/ /pubmed/36986000 http://dx.doi.org/10.3390/nano13061106 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Chen, Zhenhua
Wei, Qinhua
Tang, Gao
Shi, Hongsheng
Qin, Laishun
Preparation and Thermal Conductivity Enhancement of Boron Nitride Nano-Material PiG Composite
title Preparation and Thermal Conductivity Enhancement of Boron Nitride Nano-Material PiG Composite
title_full Preparation and Thermal Conductivity Enhancement of Boron Nitride Nano-Material PiG Composite
title_fullStr Preparation and Thermal Conductivity Enhancement of Boron Nitride Nano-Material PiG Composite
title_full_unstemmed Preparation and Thermal Conductivity Enhancement of Boron Nitride Nano-Material PiG Composite
title_short Preparation and Thermal Conductivity Enhancement of Boron Nitride Nano-Material PiG Composite
title_sort preparation and thermal conductivity enhancement of boron nitride nano-material pig composite
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10053831/
https://www.ncbi.nlm.nih.gov/pubmed/36986000
http://dx.doi.org/10.3390/nano13061106
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