One-Step Synthesis and Photoluminescence Evaluation of Cadmium-Containing Quantum Dots

Nisha Shukla; MichaelM. Nigra; Abigail D. Ondeck

doi:10.1007/BF03353692

Issue

Vol. 4 No. 1 (2012)

Issue Published : Jan 1, 2012

One-Step Synthesis and Photoluminescence Evaluation of Cadmium-Containing Quantum Dots

https://doi.org/10.1007/BF03353692

Nisha Shukla

Institute for Complex Engineered Systems, Carnegie Mellon University, Pittsburgh, PA 15213, U.S.A

MichaelM. Nigra

Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, U.S.A

Abigail D. Ondeck

Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, U.S.A

Corresponding Author: Nisha Shukla

nisha@andrew.cmu.edu

Nano-Micro Letters, Vol. 4 No. 1 (2012), Article Number: 52-56
Article Published : Mar 28, 2012

Abstract

We have developed a simple one-step process for synthesis of ternary quantum dots (ZnCdSe, MgCdSe) with photoluminescence wavelengths ranging from the red to the blue region of the visible spectrum. The primary aim of this work was to develop a synthesis for the preparation of Cd-containing quantum dots using a Cd precursor with lower toxicity than those used in common syntheses. This synthesis makes use of Cd(acac)2 which is significantly less toxic than precursors such as CdO and CdCl₂. We have studied the effect of solvent boiling point, precursors and reaction time on the photoluminescence properties of the ternary quantum dots. Ternary quantum dots synthesized from Cd(acac)₂ in low boiling point solvents have photoluminescence wavelengths in the blue region, while those synthesized in high boiling point solvents have photoluminescence wavelengths in the red region.

Keywords

Quantum dots ZnCdSe MgCdSe Photoluminescence

Shukla, Nisha, MichaelM. Nigra, and Abigail D. Ondeck. 2012. “One-Step Synthesis and Photoluminescence Evaluation of Cadmium-Containing Quantum Dots”. Nano-Micro Letters 4 (1):52-56. https://doi.org/10.1007/BF03353692.

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