Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/66065
Title: Selenium quantum dots : Preparation, structure, and properties
Authors: Qian, F
Li, X
Tang, L
Lai, SK 
Lu, C
Lau, SP 
Issue Date: 2017
Source: Applied physics letters, 2017, v. 110, no. 5, 53104, p. 053104-1-053104-4
Abstract: An interesting class of low-dimensional nanomaterials, namely, selenium quantum dots (SeQDs), which are composed of nano-sized selenium particles, is reported in this study. The SeQDs possess a hexagonal crystal structure. They can be synthesized in large quantity by ultrasound liquid-phase exfoliation using NbSe2 powders as the source material and N-Methyl-2-pyrrolidone (NMP) as the dispersant. During sonication, the Nb-Se bonds dissociate; the SeQDs are formed, while niobium is separated by centrifugation. The SeQDs have a narrow diameter distribution from 1.9 to 4.6 nm and can be dispersed with high stability in NMP without the need for passivating agents. They exhibit photoluminescence properties that are expected to find useful applications in bioimaging, optoelectronics, as well as nanocomposites.
Publisher: American Institute of Physics
Journal: Applied physics letters 
ISSN: 0003-6951
EISSN: 1077-3118
DOI: 10.1063/1.4975358
Rights: © 2017 Author(s).
This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in F. Qian et al., Appl. Phys. Lett. 110, 53104 (2017) and may be found at https://dx.doi.org/10.1063/1.4975358
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

4
Last Week
0
Last month
Citations as of Jul 12, 2020

WEB OF SCIENCETM
Citations

4
Last Week
0
Last month
Citations as of Jul 12, 2020

Page view(s)

163
Last Week
3
Last month
Citations as of Jul 13, 2020

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.