Publication:
Novel approach of controllable stoichiometric fabrication of alloyed Au/Ag nanoparticles by nanosecond laser ablation of thin bi-layered films in water

Дата
2019
Авторы
Nastulyavichus, A. A.
Smirnov, N. A.
Rudenko, A. A.
Busleev, N. I.
Kudryashov, S. I.
Kharin, A. Yu.
Journal Title
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Volume Title
Издатель
Научные группы
Организационные подразделения
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Организационная единица
Инженерно-физический институт биомедицины
Цель ИФИБ и стратегия развития – это подготовка высококвалифицированных кадров на базе передовых исследований и разработок новых перспективных методов и материалов в области инженерно-физической биомедицины. Занятие лидерских позиций в биомедицинских технологиях XXI века и внедрение их в образовательный процесс, что отвечает решению практикоориентированной задачи мирового уровня – диагностике и терапии на клеточном уровне социально-значимых заболеваний человека.
Выпуск журнала
Аннотация
A novel approach was proposed and demonstrated to fabricate in a controllable manner alloyed colloidal Ag/Au nanoparticles with pre-determined stoichiometry from thin, magnetron-deposited bi-layered (Ag/Au) films of variable layer thickness by their nanosecond laser ablation in water. The optical properties of the obtained colloidal solutions were systematically analyzed, both experimentally and theoretically, indicating the alloyed character of the bimetallic nanoparticles as a monotonic 'red' spectral displacement of the localized plasmon resonance position, as well as gradual variation of its amplitude and width with increasing gold content in the bi-layered films. Transmission electron microscopy and energy dispersive x-ray spectroscopy support the alloyed rather than fragmentary character of the bimetallic nanoparticles, with the increasing gold content resulting in an increasing average nanoparticle size. This approach appears to be highly promising for the controllable on-demand fabrication of different bi- and poly-metallic nanoparticles with pre-determined stoichiometries.
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Цитирование
Novel approach of controllable stoichiometric fabrication of alloyed Au/Ag nanoparticles by nanosecond laser ablation of thin bi-layered films in water / Nastulyavichus, AA [et al.] // Laser Physics Letters. - 2019. - 16. - № 9. - 10.1088/1612-202X/ab35cf
URI
https://www.doi.org/10.1088/1612-202X/ab35cf
 https://www.scopus.com/record/display.uri?eid=2-s2.0-85076263766&origin=resultslist
 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000480398500001
 https://openrepository.mephi.ru/handle/123456789/18542
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