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Synthesis of CdSe quantum dots with luminescence in the violet region of the solar spectrum

✍ Scribed by Nisha Shukla; Michael M. Nigra

Publisher: John Wiley and Sons
Year: 2009
Tongue: English
Weight: 351 KB
Volume: 25
Category: Article
ISSN: 1522-7235
DOI: 10.1002/bio.1134

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✦ Synopsis

Abstract

We have designed a simple, one‐step synthesis of CdSe quantum dots with photoluminescence frequencies ranging from the red through to the violet region of the solar spectrum. The photoluminescence peaks have FWHM of 30 nm indicating absorption over a narrow range of wavelengths. The effect of solvent type and solvent boiling point on the physical and photoluminescence properties of the quantum dots has been studied. High boiling point, non‐polar solvents shift the photoluminescence peak to longer wavelengths and low boiling point, polar solvents shift the photoluminescence peak to shorter wavelengths. Copyright © 2009 John Wiley & Sons, Ltd.

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