Publication:
Silk-hydrogel lenses for light-emitting diodes

dc.contributor.coauthorMelikov, Rustamzhon
dc.contributor.coauthorPress, Daniel Aaron
dc.contributor.coauthorKumar, Baskaran Ganesh
dc.contributor.coauthorDogru, Itir Bakis
dc.contributor.coauthorSadeghi, Sadra
dc.contributor.coauthorChirea, Mariana
dc.contributor.departmentDepartment of Chemistry
dc.contributor.departmentDepartment of Electrical and Electronics Engineering
dc.contributor.kuauthorNizamoğlu, Sedat
dc.contributor.kuauthorYılgör, İskender
dc.contributor.schoolcollegeinstituteCollege of Engineering
dc.contributor.schoolcollegeinstituteCollege of Sciences
dc.date.accessioned2024-11-09T13:24:20Z
dc.date.issued2017
dc.description.abstractToday 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.
dc.description.fulltextYES
dc.description.indexedbyWOS
dc.description.indexedbyScopus
dc.description.indexedbyPubMed
dc.description.openaccessYES
dc.description.publisherscopeInternational
dc.description.sponsoredbyTubitakEuTÜBİTAK
dc.description.sponsorshipMarie Curie Career Integration Grant (PROTEINLED)
dc.description.sponsorshipTurkish Academy of Sciences
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TÜBİTAK)
dc.description.versionPublisher version
dc.description.volume7
dc.identifier.doi10.1038/s41598-017-07817-1
dc.identifier.embargoNO
dc.identifier.filenameinventorynoIR01317
dc.identifier.issn2045-2322
dc.identifier.quartileQ2
dc.identifier.scopus2-s2.0-85026810019
dc.identifier.urihttps://doi.org/10.1038/s41598-017-07817-1
dc.identifier.wos406889500087
dc.keywordsBioinspired materials
dc.keywordsOrganic LEDs
dc.language.isoeng
dc.publisherNature Publishing Group (NPG)
dc.relation.grantno631679
dc.relation.grantno114F317
dc.relation.grantno114E194
dc.relation.ispartofScientific Reports
dc.relation.urihttp://cdm21054.contentdm.oclc.org/cdm/ref/collection/IR/id/3078
dc.subjectChemistry
dc.titleSilk-hydrogel lenses for light-emitting diodes
dc.typeJournal Article
dspace.entity.typePublication
local.contributor.kuauthorYılgör, İskender
local.contributor.kuauthorNizamoğlu, Sedat
local.publication.orgunit1College of Sciences
local.publication.orgunit1College of Engineering
local.publication.orgunit2Department of Chemistry
local.publication.orgunit2Department of Electrical and Electronics Engineering
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