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

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https://www.spiedigitallibrary.org/conference-proceedings-of-spie/9758/97580G/Enhanced-absorption-with-quantum-dots-metal-nanoparticles-and-2D-materials/10.1117/12.2213054.full

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https://doi.org/10.1117/12.2213054
 http://hdl.handle.net/11603/38783

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UMBC Data Science
UMBC Computer Science and Electrical Engineering Department

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Author/Creator ORCID

https://orcid.org/0000-0001-9075-7071

Date

2016-03-15

Type of Work

conference papers and proceedings
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Citation of Original Publication

Simsek, Ergun, Bablu Mukherjee, Asim Guchhait, and Yin Thai Chan. “Enhanced Absorption with Quantum Dots, Metal Nanoparticles, and 2D Materials.” Quantum Dots and Nanostructures: Growth, Characterization, and Modeling XIII 9758 (March 15, 2016): 39–44. https://doi.org/10.1117/12.2213054.

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©2016 Society of Photo-Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

Subjects

UMBC Computational Photonics Laboratory

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.