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dc.contributor.authorTopçu, Gökhan
dc.contributor.authorGüner, Tuğrul
dc.contributor.authorDemir, Mustafa Muammer
dc.date.accessioned2020-01-08T13:56:44Z
dc.date.available2020-01-08T13:56:44Z
dc.date.issued2018-05en_US
dc.identifier.citationTopçu, G., and Güner, T., and Demir, M. M. (2018). Non-iridescent structural colors from uniform-sized SiO2 colloids. Photonics and Nanostructures - Fundamentals and Applications, 29, 22-29. doi:10.1016/j.photonics.2018.01.002en_US
dc.identifier.issn1569-4410
dc.identifier.urihttps://doi.org/10.1016/j.photonics.2018.01.002
dc.identifier.urihttps://hdl.handle.net/11147/7575
dc.description.abstractStructural colors have recently attracted interest from diverse fields of research due to their ease of fabrication and eco-friendliness. These types of colors are, in principle, achieved by periodically arranged submicron-diameter colloidal particles. The interaction of light with a structure containing long-range ordered colloidal particles leads to coloration; this usually varies depending on the angle of observation (iridescence). However, the majority of the applications demand constant color that is independent of the viewing angle (non-iridescence). In this work, silica colloids were obtained using the Stöber method at different sizes from 150 to 300 nm in an alcoholic dispersion. The casting of the dispersion on a substrate leaves behind a photonic crystal showing a colorful iridescent film. However, centrifugation and redispersion of the SiO2 particles into fresh solvent may cause the formation of small, aggregated silica domains in the new dispersion. The casting of this dispersion allows for the development of photonic glass, presumably due to the accumulation of aggregates showing stable colloidal film independent of viewing angle. Moreover, depending on the size of the silica colloids, non-iridescent photonic glasses with various colors (violet, blue, green, and orange) are obtained.en_US
dc.description.sponsorshipTurkish Academy of Sciencesen_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.isversionof10.1016/j.photonics.2018.01.002en_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectAggregatesen_US
dc.subjectIridescenceen_US
dc.subjectNon-iridescenceen_US
dc.subjectPhotonic crystalsen_US
dc.subjectPhotonic glassen_US
dc.subjectColloidsen_US
dc.titleNon-iridescent structural colors from uniform-sized SiO2 colloidsen_US
dc.typearticleen_US
dc.contributor.authorID0000-0003-1309-3990en_US
dc.contributor.iztechauthorTopçu, Gökhan
dc.contributor.iztechauthorGüner, Tuğrul
dc.contributor.iztechauthorDemir, Mustafa Muammer
dc.relation.journalPhotonics and Nanostructures - Fundamentals and Applicationsen_US
dc.contributor.departmentIzmir Institute of Technology. Materials Science and Engineeringen_US
dc.identifier.volume29en_US
dc.identifier.startpage22en_US
dc.identifier.endpage29en_US
dc.identifier.wosWOS:000428974900004
dc.identifier.scopusSCOPUS:2-s2.0-85041432086
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US


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