Enhanced absorption with quantum dots, metal nanoparticles, and 2D materials

Ergun Simsek; Bablu Mukherjee; Asim Guchhait; Yin Thai Chan

doi:10.1117/12.2213054

15 March 2016 Enhanced absorption with quantum dots, metal nanoparticles, and 2D materials

Ergun Simsek, Bablu Mukherjee, Asim Guchhait, Yin Thai Chan

Proceedings Volume 9758, Quantum Dots and Nanostructures: Growth, Characterization, and Modeling XIII; 97580G (2016) https://doi.org/10.1117/12.2213054
Event: SPIE OPTO, 2016, San Francisco, California, United States

Abstract

We fabricate and characterize mono- and few- layers of MoS₂ and WSe₂ on glass and SiO₂/Si substrates. PbS quantum dots and/or Au nanoparticles are deposited on the fabricated thin metal dichalcogenide films by controlled drop casting and electron beam evaporation techniques. The reflection spectra of the fabricated structures are measured with a spatially resolved reflectometry setup. Both experimental and numerical results show that surface functionalization with metal nanoparticles can enhance atomically thin transition metal dichalcogenides’ absorption and scattering capabilities, however semiconducting quantum dots do not create such effect.

Citation Download Citation

Ergun Simsek, Bablu Mukherjee, Asim Guchhait, and Yin Thai Chan "Enhanced absorption with quantum dots, metal nanoparticles, and 2D materials", Proc. SPIE 9758, Quantum Dots and Nanostructures: Growth, Characterization, and Modeling XIII, 97580G (15 March 2016); https://doi.org/10.1117/12.2213054

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