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journal article·2019-04-01Open access

Plasmon-exciton coupling in nanostructured metal-semiconductor composite films

Viktoriia V. Savchuk, Roman V. Gamernyk, Ihor S. Virt, Serhiy Z. Malynych, Anatoliy O. Pinchuk

AIP Advances· Volume 9· Issue 4
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Source abstract

Abstract

Nonlinear optical response of metal-semiconductor Zn0.8Co0.2O/Au nanocomposite films was studied experimentally and theoretically. Z-scan measurements revealed a positive nonlinear index of refraction of the composite film. Fluorescent spectroscopy measurements exhibited a narrow sharp peak that might be attributed to exciton peak of semiconductor nanostructured thin film enhanced by nearby gold nanoparticles. Classical electrodynamic calculations of a quantum dot in close proximity to a gold nanoparticle agree well with the experimentally observed normalized quantum efficiency.
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Research context

NanomaterialsElectronic materialsComposites

OpenAlex topics: Gold and Silver Nanoparticles Synthesis and Applications · Quantum Dots Synthesis And Properties · Plasmonic and Surface Plasmon Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Physics and Energy Sciences, University of Colorado Colorado Springs, and Center for Biofrontiers Institute, University of Colorado 1 , 1420 Austin Bluffs Parkway 80918, Colorado Springs, Colorado, USA

Department of Physics, Ivan Franko National University of Lviv 2 , 79005 Lviv, Ukraine

Department of Engineering Science and Technology, Ivan Franko Drogobych State Pedagogical University 3 , 82106 Drogobych, Ukraine

Department of Electromechanics and Electronics, Hetman Petro Sahaidachnyi National Army Academy 4 , 79012 Lviv, Ukraine

Department of Photonics, Lviv Polytechnic National University 5 , 79013 Lviv, Ukraine

Funding

Ministry of Education and Science of Ukraine · BioFrontiers Institute, University of Colorado Colorado Springs

References (22)

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