Size-dependent fluorescence in CdSe quantum dots-Reference-Cited by-同舟云学术

Size-dependent fluorescence in CdSe quantum dots

Published:2012-06 Issue:3 Volume:1 Page:117-120
ISSN:2046-0147
Container-title:Emerging Materials Research
language:en
Short-container-title:Emerging Materials Research

Author:

Dey Suhash C.¹,Nath Siddhartha S.²

Affiliation:

1. Department of Physics, Assam University, Assam, India

2. Central Instrumentation Laboratory and Department of Physics, Assam University, Silchar, Assam, India; Gauhati University, Guwahati, Assam, India

Abstract

In this study, the authors adopt a non-toxic chemical route for synthesis of cadmium selenium quantum dots (QD) of five different size distributions. They have been characterized by UV/Vis absorption spectroscopy and transmission electron microscopy. Fluorescence spectroscopy is performed to investigate their optical emission with size-variation. By UV/Vis spectroscopy, a blue-shift is revealed and the band gap is calculated in each case. Transmission electron micrographs show QD of different size distributions (in the range 2–8 nm) and fluorescence spectra reveal green–orange luminescence depending upon the size distribution.

Publisher

Thomas Telford Ltd.

Subject

Condensed Matter Physics,General Materials Science

Link

https://www.icevirtuallibrary.com/doi/pdf/10.1680/emr.11.00004

Reference22 articles.

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2. Electroluminescence of colloidal ZnSe quantum dots

3. FLUORESCENCE STUDY OF CdSe QUANTUM DOTS SUSPENDED IN LIQUID PARAFFIN

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