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Proceedings Paper

Preparation of fluorescent nanodiamond suspensions using bead-assisted ultrasonic disintegration
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Paper Abstract

Nitrogen-vacancy (N-V) centers are the most widely studied crystallographic defect in the diamond lattice since their presence causes strong and stable fluorescence. The negative charge state of the defect (NV-) is especially desired because of its potential for quantum information processing. In this study, fluorescent suspensions of diamond particles have been produced by microbead-assisted ultrasonic disintegration of commercially obtained diamond powder containing N-V color centers. Zirconium dioxide ZrO2 was chosen as an abrasive and a mixture of deionized water and dimethyl sulfoxide (DMSO) was used as a solvent. Raman spectrum of the starting material has been obtained and the resulting liquids have been measured in terms of photoluminescence. Moreover, thin layer of the diamond particles has been deposited on a silicon substrate and examined using scanning electron microscopy (SEM). During the course of the experiment a new method, which uses sodium chloride NaCl as an abrasive, has been proposed. The results of fluorescence measurements of the suspension prepared using this technique are highly promising.

Paper Details

Date Published: 1 September 2017
PDF: 6 pages
Proc. SPIE 10455, 12th Conference on Integrated Optics: Sensors, Sensing Structures, and Methods, 104550E (1 September 2017); doi: 10.1117/12.2281681
Show Author Affiliations
Maciej J. Głowacki, Gdansk Univ. of Technology (Poland)
Mateusz Gardas, Gdansk Univ. of Technology (Poland)
Mateusz Ficek, Gdansk Univ. of Technology (Poland)
Mirosław Sawczak, The Szewalski Institute of Fluid-Flow Machinery (Poland)
Robert Bogdanowicz, Gdansk Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 10455:
12th Conference on Integrated Optics: Sensors, Sensing Structures, and Methods
Przemyslaw Struk; Tadeusz Pustelny, Editor(s)

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