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dc.contributor.authorİncel, Anıl
dc.contributor.authorGüner, Tuğrul
dc.contributor.authorParlak, Onur
dc.contributor.authorDemir, Mustafa M.
dc.date.accessioned2016-07-15T07:32:12Z
dc.date.available2016-07-15T07:32:12Z
dc.date.issued2015-12
dc.identifier.citationİncel, A., Güner, T., Parlak, O., and Demir, M. M. (2015). Null extinction of ceria@silica hybrid particles: Transparent polystyrene composites. ACS Applied Materials and Interfaces, 49, 27539-27546. doi:10.1021/acsami.5b09818en_US
dc.identifier.issn1944-8244
dc.identifier.urihttp://doi.org/10.1021/acsami.5b09818
dc.identifier.urihttp://hdl.handle.net/11147/1908
dc.description.abstractScattering of light in optical materials, particularly in composites based on transparent polymer and inorganic pigment nanoparticles, is a chronic problem. It might originate mainly from light scattering because of a refractive index mismatch between the particles and transparent polymer matrix. Thus, the intensity of light is rapidly diminished and optical transparency is reduced. Refractive index matching between the pigment core and the surrounding transparent matrix using a secondary component at the interface (shell) has recently appeared as a promising approach to alter light scattering. Here, CeO2 (ceria) nanoparticles with a diameter of 25 nm are coated with a SiO2 (silica) shell with various thicknesses in a range of 6.5-67.5 nm using the Stöber method. When the hybrid core-shell particles are dispersed into transparent polystyrene (PS), the transmission of the freestanding PS composite films increases over both the ultraviolet (UV) and visible region as the shell thickness increases particularly at 37.5 nm. The increase of transmission can be attributed to the reduction in the scattering coefficient of the hybrid particles. On the other hand, the particles in tetrahydrofuran (THF) absorb over UV and the intensity of absorption shows a systematic decrease as the shell thickness increases. Thus, the silica shell suppresses not only the scattering coefficient but also the molar absorptivity of the core ceria particles. The experimental results regarding the target shell thickness to develop low extinction (scattering + absorption) composites show a qualitative agreement with the predictions of Effective Medium Theory.en_US
dc.description.sponsorshipTurkish Academy of Sciences (TÜBA-GEBİP 2013)en_US
dc.language.isoengen_US
dc.publisherAmerican Chemical Societyen_US
dc.relation.isversionof10.1021/acsami.5b09818en_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectShellsen_US
dc.subjectAbsorptionen_US
dc.subjectCore shell particlesen_US
dc.subjectIndex matchingen_US
dc.subjectLight scatteringen_US
dc.subjectPolymer nanocompositesen_US
dc.subjectComposite filmsen_US
dc.titleNull extinction of ceria@silica hybrid particles: Transparent polystyrene compositesen_US
dc.typearticleen_US
dc.contributor.authorIDTR130614en_US
dc.contributor.institutionauthorİncel, Anıl
dc.contributor.institutionauthorGüner, Tuğrul
dc.contributor.institutionauthorParlak, Onur
dc.contributor.institutionauthorDemir, Mustafa M.
dc.relation.journalACS Applied Materials and Interfacesen_US
dc.contributor.departmentIzmir Institute of Technology. Materials Science and Engineeringen_US
dc.identifier.volume7en_US
dc.identifier.issue49en_US
dc.identifier.startpage27539en_US
dc.identifier.endpage27546en_US
dc.identifier.wosWOS:000366873900061
dc.identifier.scopusSCOPUS:2-s2.0-84950257009
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US


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