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Quantum Dot–Acrylic Acrylate Oligomer Hybrid Films for Stable White Light-Emitting Diodes

[Image: see text] White light-emitting diodes (LEDs) have been achieved using photopolymerization. Red and green CdSe/ZnS core–shell quantum dots (QDs) are dispersed in photopolymerized aliphatic acrylic acrylate resins, cured by using 36 W UV light for 1.5 min producing QD–acrylate nanocomposites,...

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Autores principales: Chou, Cheng-Chun, Wang, Tzong-Liu, Chen, Wen-Janq, Yang, Chien-Hsin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2019
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6648638/
https://www.ncbi.nlm.nih.gov/pubmed/31459540
http://dx.doi.org/10.1021/acsomega.8b03241
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author Chou, Cheng-Chun
Wang, Tzong-Liu
Chen, Wen-Janq
Yang, Chien-Hsin
author_facet Chou, Cheng-Chun
Wang, Tzong-Liu
Chen, Wen-Janq
Yang, Chien-Hsin
author_sort Chou, Cheng-Chun
collection PubMed
description [Image: see text] White light-emitting diodes (LEDs) have been achieved using photopolymerization. Red and green CdSe/ZnS core–shell quantum dots (QDs) are dispersed in photopolymerized aliphatic acrylic acrylate resins, cured by using 36 W UV light for 1.5 min producing QD–acrylate nanocomposites, and then a hybrid LED device is achieved using the QD–acrylate nanocomposite with two emission wavelengths excited by using a blue InGaN LED chip. The cured QD–acrylate nanocomposite films are characterized by using ultraviolet–visible, fluorescence, scanning electron microscopy, atomic force microscopy, and thermogravimetric analysis measurements. Photopolymerization is conveniently employed to adjust several parameters of the CIE-1931 coordinate (x, y), color temperature, and color rending index (CRI). Good white balance of the red-green hybrid device achieves a luminance of 7976 lm/m(2) at a 30 mA working current. The light emission efficiency, CRI, and color temperature of 14%, 47, and 11 204 K, respectively, are attained at this working current.
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spelling pubmed-66486382019-08-27 Quantum Dot–Acrylic Acrylate Oligomer Hybrid Films for Stable White Light-Emitting Diodes Chou, Cheng-Chun Wang, Tzong-Liu Chen, Wen-Janq Yang, Chien-Hsin ACS Omega [Image: see text] White light-emitting diodes (LEDs) have been achieved using photopolymerization. Red and green CdSe/ZnS core–shell quantum dots (QDs) are dispersed in photopolymerized aliphatic acrylic acrylate resins, cured by using 36 W UV light for 1.5 min producing QD–acrylate nanocomposites, and then a hybrid LED device is achieved using the QD–acrylate nanocomposite with two emission wavelengths excited by using a blue InGaN LED chip. The cured QD–acrylate nanocomposite films are characterized by using ultraviolet–visible, fluorescence, scanning electron microscopy, atomic force microscopy, and thermogravimetric analysis measurements. Photopolymerization is conveniently employed to adjust several parameters of the CIE-1931 coordinate (x, y), color temperature, and color rending index (CRI). Good white balance of the red-green hybrid device achieves a luminance of 7976 lm/m(2) at a 30 mA working current. The light emission efficiency, CRI, and color temperature of 14%, 47, and 11 204 K, respectively, are attained at this working current. American Chemical Society 2019-02-14 /pmc/articles/PMC6648638/ /pubmed/31459540 http://dx.doi.org/10.1021/acsomega.8b03241 Text en Copyright © 2019 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes.
spellingShingle Chou, Cheng-Chun
Wang, Tzong-Liu
Chen, Wen-Janq
Yang, Chien-Hsin
Quantum Dot–Acrylic Acrylate Oligomer Hybrid Films for Stable White Light-Emitting Diodes
title Quantum Dot–Acrylic Acrylate Oligomer Hybrid Films for Stable White Light-Emitting Diodes
title_full Quantum Dot–Acrylic Acrylate Oligomer Hybrid Films for Stable White Light-Emitting Diodes
title_fullStr Quantum Dot–Acrylic Acrylate Oligomer Hybrid Films for Stable White Light-Emitting Diodes
title_full_unstemmed Quantum Dot–Acrylic Acrylate Oligomer Hybrid Films for Stable White Light-Emitting Diodes
title_short Quantum Dot–Acrylic Acrylate Oligomer Hybrid Films for Stable White Light-Emitting Diodes
title_sort quantum dot–acrylic acrylate oligomer hybrid films for stable white light-emitting diodes
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6648638/
https://www.ncbi.nlm.nih.gov/pubmed/31459540
http://dx.doi.org/10.1021/acsomega.8b03241
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