Silk-hydrogel Lenses for Light-emitting Diodes

Abstract Today the high demand for electronics leads to massive production of waste, thus green materials based electronic devices are becoming more important for environmental protection and sustainability. The biomaterial based hydrogels are widely used in tissue engineering, but their uses in pho...

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Autores principales:	Rustamzhon Melikov, Daniel Aaron Press, Baskaran Ganesh Kumar, Itir Bakis Dogru, Sadra Sadeghi, Mariana Chirea, İskender Yılgör, Sedat Nizamoglu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d69c22eda81646898d913e7159588a63
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spelling	oai:doaj.org-article:d69c22eda81646898d913e7159588a632021-12-02T11:52:59ZSilk-hydrogel Lenses for Light-emitting Diodes10.1038/s41598-017-07817-12045-2322https://doaj.org/article/d69c22eda81646898d913e7159588a632017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07817-1https://doaj.org/toc/2045-2322Abstract Today the high demand for electronics leads to massive production of waste, thus green materials based electronic devices are becoming more important for environmental protection and sustainability. The biomaterial based hydrogels are widely used in tissue engineering, but their uses in photonics are limited. In this study, silk fibroin protein in hydrogel form is explored as a bio-friendly alternative to conventional polymers for lens applications in light-emitting diodes. The concentration of silk fibroin protein and crosslinking agent had direct effects on optical properties of silk hydrogel. The spatial radiation intensity distribution was controlled via dome- and crater-type silk-hydrogel lenses. The hydrogel lens showed a light extraction efficiency over 0.95 on a warm white LED. The stability of silk hydrogel lens is enhanced approximately three-folds by using a biocompatible/biodegradable poly(ester-urethane) coating and more than three orders of magnitude by using an edible paraffin wax coating. Therefore, biomaterial lenses show promise for green optoelectronic applications.Rustamzhon MelikovDaniel Aaron PressBaskaran Ganesh KumarItir Bakis DogruSadra SadeghiMariana Chireaİskender YılgörSedat NizamogluNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Rustamzhon Melikov Daniel Aaron Press Baskaran Ganesh Kumar Itir Bakis Dogru Sadra Sadeghi Mariana Chirea İskender Yılgör Sedat Nizamoglu Silk-hydrogel Lenses for Light-emitting Diodes
description	Abstract Today the high demand for electronics leads to massive production of waste, thus green materials based electronic devices are becoming more important for environmental protection and sustainability. The biomaterial based hydrogels are widely used in tissue engineering, but their uses in photonics are limited. In this study, silk fibroin protein in hydrogel form is explored as a bio-friendly alternative to conventional polymers for lens applications in light-emitting diodes. The concentration of silk fibroin protein and crosslinking agent had direct effects on optical properties of silk hydrogel. The spatial radiation intensity distribution was controlled via dome- and crater-type silk-hydrogel lenses. The hydrogel lens showed a light extraction efficiency over 0.95 on a warm white LED. The stability of silk hydrogel lens is enhanced approximately three-folds by using a biocompatible/biodegradable poly(ester-urethane) coating and more than three orders of magnitude by using an edible paraffin wax coating. Therefore, biomaterial lenses show promise for green optoelectronic applications.
format	article
author	Rustamzhon Melikov Daniel Aaron Press Baskaran Ganesh Kumar Itir Bakis Dogru Sadra Sadeghi Mariana Chirea İskender Yılgör Sedat Nizamoglu
author_facet	Rustamzhon Melikov Daniel Aaron Press Baskaran Ganesh Kumar Itir Bakis Dogru Sadra Sadeghi Mariana Chirea İskender Yılgör Sedat Nizamoglu
author_sort	Rustamzhon Melikov
title	Silk-hydrogel Lenses for Light-emitting Diodes
title_short	Silk-hydrogel Lenses for Light-emitting Diodes
title_full	Silk-hydrogel Lenses for Light-emitting Diodes
title_fullStr	Silk-hydrogel Lenses for Light-emitting Diodes
title_full_unstemmed	Silk-hydrogel Lenses for Light-emitting Diodes
title_sort	silk-hydrogel lenses for light-emitting diodes
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/d69c22eda81646898d913e7159588a63
work_keys_str_mv	AT rustamzhonmelikov silkhydrogellensesforlightemittingdiodes AT danielaaronpress silkhydrogellensesforlightemittingdiodes AT baskaranganeshkumar silkhydrogellensesforlightemittingdiodes AT itirbakisdogru silkhydrogellensesforlightemittingdiodes AT sadrasadeghi silkhydrogellensesforlightemittingdiodes AT marianachirea silkhydrogellensesforlightemittingdiodes AT iskenderyılgor silkhydrogellensesforlightemittingdiodes AT sedatnizamoglu silkhydrogellensesforlightemittingdiodes
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Silk-hydrogel Lenses for Light-emitting Diodes

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