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Zirconia/phenylsiloxane nano-composite for LED encapsulation with high and stable light extraction efficiency
To obtain a rapid processible LED encapsulant that leads to high and stable light extraction efficiency (LEE), UV curable ZrO(2)/phenyl-siloxane nano-composite (ZSC) double-layer encapsulants were prepared and optimized. The highly crystalline ZrO(2) nanoparticles with a diameter of ∼14 nm were synt...
Autores principales: | , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9033391/ https://www.ncbi.nlm.nih.gov/pubmed/35480915 http://dx.doi.org/10.1039/d1ra02230j |
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author | Lu, Ying Zhao, Zhihang Fan, Xianpeng Cao, Xinyu Hai, Mingtan Yang, Zhou Zheng, Kun Lu, Jiaxin Zhang, Jingnan Ma, Yongmei Zhang, Rongben Fang, Shibi |
author_facet | Lu, Ying Zhao, Zhihang Fan, Xianpeng Cao, Xinyu Hai, Mingtan Yang, Zhou Zheng, Kun Lu, Jiaxin Zhang, Jingnan Ma, Yongmei Zhang, Rongben Fang, Shibi |
author_sort | Lu, Ying |
collection | PubMed |
description | To obtain a rapid processible LED encapsulant that leads to high and stable light extraction efficiency (LEE), UV curable ZrO(2)/phenyl-siloxane nano-composite (ZSC) double-layer encapsulants were prepared and optimized. The highly crystalline ZrO(2) nanoparticles with a diameter of ∼14 nm were synthesized through a modified hydrothermal method at mild conditions, and a UV curable methacryl-diphenyl-polysiloxane (MDPS) with a refractive index (RI) of 1.54 (at 633 nm) was synthesized from self-condensation of diphenylsilanediol and an end-capping reaction. High refractive indexes (RIs) from 1.54–1.61 have been obtained for ZSC composites by adding 0–20 wt% ZrO(2). Before and after sulfur vapor erosion, the double-layer encapsulated sample (M-10/M) showed 11.2% and 64.8% higher LEE respectively than that of Dow Corning OE-7662. Meanwhile, the variation of LED light color temperature (T(c)) was less than 1%. The effect of the ZrO(2) nanoparticle content on LEE of double-layer and single-layer encapsulation were compared and discussed based on Fresnel loss and Rayleigh scattering theories. The double-layered UV curing processing took only 1/6 of the time needed for common thermal curing. |
format | Online Article Text |
id | pubmed-9033391 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90333912022-04-26 Zirconia/phenylsiloxane nano-composite for LED encapsulation with high and stable light extraction efficiency Lu, Ying Zhao, Zhihang Fan, Xianpeng Cao, Xinyu Hai, Mingtan Yang, Zhou Zheng, Kun Lu, Jiaxin Zhang, Jingnan Ma, Yongmei Zhang, Rongben Fang, Shibi RSC Adv Chemistry To obtain a rapid processible LED encapsulant that leads to high and stable light extraction efficiency (LEE), UV curable ZrO(2)/phenyl-siloxane nano-composite (ZSC) double-layer encapsulants were prepared and optimized. The highly crystalline ZrO(2) nanoparticles with a diameter of ∼14 nm were synthesized through a modified hydrothermal method at mild conditions, and a UV curable methacryl-diphenyl-polysiloxane (MDPS) with a refractive index (RI) of 1.54 (at 633 nm) was synthesized from self-condensation of diphenylsilanediol and an end-capping reaction. High refractive indexes (RIs) from 1.54–1.61 have been obtained for ZSC composites by adding 0–20 wt% ZrO(2). Before and after sulfur vapor erosion, the double-layer encapsulated sample (M-10/M) showed 11.2% and 64.8% higher LEE respectively than that of Dow Corning OE-7662. Meanwhile, the variation of LED light color temperature (T(c)) was less than 1%. The effect of the ZrO(2) nanoparticle content on LEE of double-layer and single-layer encapsulation were compared and discussed based on Fresnel loss and Rayleigh scattering theories. The double-layered UV curing processing took only 1/6 of the time needed for common thermal curing. The Royal Society of Chemistry 2021-05-21 /pmc/articles/PMC9033391/ /pubmed/35480915 http://dx.doi.org/10.1039/d1ra02230j Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Lu, Ying Zhao, Zhihang Fan, Xianpeng Cao, Xinyu Hai, Mingtan Yang, Zhou Zheng, Kun Lu, Jiaxin Zhang, Jingnan Ma, Yongmei Zhang, Rongben Fang, Shibi Zirconia/phenylsiloxane nano-composite for LED encapsulation with high and stable light extraction efficiency |
title | Zirconia/phenylsiloxane nano-composite for LED encapsulation with high and stable light extraction efficiency |
title_full | Zirconia/phenylsiloxane nano-composite for LED encapsulation with high and stable light extraction efficiency |
title_fullStr | Zirconia/phenylsiloxane nano-composite for LED encapsulation with high and stable light extraction efficiency |
title_full_unstemmed | Zirconia/phenylsiloxane nano-composite for LED encapsulation with high and stable light extraction efficiency |
title_short | Zirconia/phenylsiloxane nano-composite for LED encapsulation with high and stable light extraction efficiency |
title_sort | zirconia/phenylsiloxane nano-composite for led encapsulation with high and stable light extraction efficiency |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9033391/ https://www.ncbi.nlm.nih.gov/pubmed/35480915 http://dx.doi.org/10.1039/d1ra02230j |
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