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Proceedings Paper

Optical enhancement of photoluminescence with colloidal quantum dots
Author(s): Gabrielle Abraham; David A. French; Pooja Bajwa; Colin D. Heyes; Joseph B. Herzog
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Paper Abstract

This work investigates colloidal, semiconductor Cadmium Selenide (CdSe) QDs with optical spectroscopy measurements. A custom-built microscope has been used for photoluminescence spectroscopy and has collected images, videos, and spectra of samples to study the effects of substrates, sample density, uniformity, and QD aging with time. This set up will be used to detect single to a few molecules, shown by fluorescent intermittency, or QD blinking. Differences in the spectrum will be noted as related to the age of samples, the density of the quantum dots, and the concentration of samples. Further experiments include the potential plasmonic enhancement of QD photoluminescence by gold nanoparticles or nanostructures.

Paper Details

Date Published: 20 August 2015
PDF: 6 pages
Proc. SPIE 9556, Nanoengineering: Fabrication, Properties, Optics, and Devices XII, 95561C (20 August 2015); doi: 10.1117/12.2188362
Show Author Affiliations
Gabrielle Abraham, Univ. of Arkansas (United States)
David A. French, Univ. of Arkansas (United States)
Pooja Bajwa, Univ. of Arkansas (United States)
Colin D. Heyes, Univ. of Arkansas (United States)
Joseph B. Herzog, Univ. of Arkansas (United States)

Published in SPIE Proceedings Vol. 9556:
Nanoengineering: Fabrication, Properties, Optics, and Devices XII
Eva M. Campo; Elizabeth A. Dobisz; Louay A. Eldada, Editor(s)

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