Publication:
Self-Assembly of Fluorescent Photonic Crystal Structures in Binary Water-Glycerol Solvent Droplets

Date
2020
Authors
Savenko, O. A.
Stepko, A. S.
Shevchenko, N. N.
Koshkin, A. V.
Lebedev-Stepanov, P.
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Институт нанотехнологий в электронике, спинтронике и фотонике
Институт ИНТЭЛ занимается научной деятельностью и подготовкой специалистов в области исследования физических принципов, проектирования и разработки технологий создания компонентной базы электроники гражданского и специального назначения, а также построения современных приборов на её основе. ​Наша основная цель – это создание и развитие научно-образовательного центра мирового уровня в области наноструктурных материалов и устройств электроники, спинтроники, фотоники, а также создание эффективной инновационной среды в области СВЧ-электронной и радиационно-стойкой компонентной базы, источников ТГц излучения, ионно-кластерных технологий материалов.​
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Abstract
The morphology of photonic-crystal structures formed by the self-assembly of fluorescent marker nanoparticles from evaporating droplets of a binary water-glycerol solvent, the components of which differ appreciably from each other in the viscosity and evaporation rate, being infinitely mutually soluble under normal conditions, was has been studied experimentally for the first time. It has been shown that the main self-assembly disordering factor is Marangoni vortex flows, and the change in the initial concentration ratio between binary mixture components enables the control over the degree of disordering in the solid phase, which is formed after the solvent is evaporated from a droplet and distributed over the substrate. A low initial concentration of any component corresponds to the most ordered distribution, whereas their medium concentrations correspond to the most disordered distribution. The characteristic values of Marangoni numbers in experiments have been calculated. It has been demonstrated that the average radius of the distribution of an ensemble of marker particles over a substrate may serve as a descriptor for the degree of ordering.
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Citation
Self-Assembly of Fluorescent Photonic Crystal Structures in Binary Water-Glycerol Solvent Droplets / Savenko, OA [et al.] // Doklady Physics. - 2020. - 65. - № 12. - P. 424-430. - 10.1134/S1028335820120071
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https://www.doi.org/10.1134/S1028335820120071
 https://www.scopus.com/record/display.uri?eid=2-s2.0-85101745232&origin=resultslist
 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000622332100003
 https://openrepository.mephi.ru/handle/123456789/23137
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