Light-induced mass transport in amorphous chalcogenides/gold nanoparticles composites

• Published in: Semiconductor Physics Quantum Electronics & Optoelectronics
• Date: 2013
• Main Authors: Trunov, M.L., Lytvyn, P.M., Nagy, P.M., Oberemok, O.S., Durkot, M.O., Tarnaii, A.A., Prokopenko, I.V., Rubish, V.M.
• Format: Article
• Language: English
• Published: Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України 2013
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/117815
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Light-induced mass transport in amorphous chalcogenides/gold
 nanoparticles composites / M.L.Trunov, P.M. Lytvyn, P.M. Nagy, O.S. Oberemok, M.O. Durkot, A.A. Tarnaii, I.V. Prokopenko, V.M. Rubish // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2013. — Т. 16, № 4. — С. 354-361. — Бібліогр.: 28 назв. — англ.

We have established that mass-transport processes in two types of amorphous
 materials, based on light-sensitive inorganic compounds like Se and As₂₀Se₈₀ chalcogenide
 glasses (ChG), can be enhanced at the nanoscale in the presence of localized plasmonic
 fields generated by visible light in gold nanoparticles (GNPs), if the condition of surface
 plasmon resonance (SPR) is fulfilled. It was found that irradiation by light in the presence of
 SPR produces profound surface nanostructurizations, and variation in topography follows
 closely and permanently the underlying near field intensity pattern. We have proposed a
 model of mass-transport in which the existence of moving anisotropic dipolar units and
 internal electric field in ChG as a main driving force of this movement is suggested.