Das, Rupali and Phadke, Parikshit and Khichar, Naveen and Chawla, Santa (2014) Plasmonic enhancement of dual mode fluorescence in a silver nano-antenna-ZnO:Er3+ hybrid nanostructure. Journal of Materials Chemistry C, 2 (42). pp. 8880-8885. ISSN 2050-7526

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Tuning of surface plasmon resonance (SPR) of silver nanoparticles (Ag NPs) through shape tailoring make them frequency tunable multipolar optical nano antennas that can be harnessed for optical enhancements in a fluorophore placed in optimal proximity. Such SPR tuning has been achieved with Ag nano-hexagons in which enhancements in both down (under UV excitation) and up (under IR excitation) conversion fluorescence from rare earth Er3+-doped ZnO nanoparticles are realised. The near field generated by the pure Ag NPs and their hybrids under UV and IR incident light is simulated using a finite difference time domain method, and a direct correlation with the observed fluorescence enhancement is established.

Item Type: Article
Subjects: Materials Science
Depositing User: Dr. Rajpal Walke
Date Deposited: 03 Nov 2015 05:52
Last Modified: 03 Nov 2015 05:52
URI: http://npl.csircentral.net/id/eprint/1466

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