Semiconductor Plasmonic Nanocrystals with a Near-Infrared Localized Surface Plasmon Resonance
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The techniques of preparation of layers of Cu2 – xSe semiconductor plasmonic nanocrystals (SPNC) with plasmonic resonances in near infrared region from toluene colloidal solution are described. It is shown that combining QDs with SPNC layers lead to the enhancement of optical response from the QDs. The PVA film makes it possible to optimize the QDs-SPNC interlayer distance and provide most efficient enhancement.
The authors thank the Ministry of Education and Science of the Russian Federation (Goszadanie no. 16.8981.2017/8.9) for financial support. A.P.L. thanks the Ministry of Education of the Russian Federation for financial support (Scholarship of the President of the Russian Federation for young scientists and graduate students, SP-70.2018.1). A.D. thanks the Government of the Russian Federation (Grant no. 074-U01) through ITMO Postdoctoral Fellowship.
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