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1 September 2017 Preparation of fluorescent nanodiamond suspensions using bead-assisted ultrasonic disintegration
Maciej J. Głowacki, Mateusz Gardas, Mateusz Ficek, Mirosław Sawczak, Robert Bogdanowicz
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Proceedings Volume 10455, 12th Conference on Integrated Optics: Sensors, Sensing Structures, and Methods; 104550E (2017) https://doi.org/10.1117/12.2281681
Event: Twelfth Integrated Optics – Sensors, Sensing Structures and Methods Conference, 2017, Szczyrk-Gliwice, Poland
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.
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Maciej J. Głowacki, Mateusz Gardas, Mateusz Ficek, Mirosław Sawczak, and Robert Bogdanowicz "Preparation of fluorescent nanodiamond suspensions using bead-assisted ultrasonic disintegration", Proc. SPIE 10455, 12th Conference on Integrated Optics: Sensors, Sensing Structures, and Methods, 104550E (1 September 2017); https://doi.org/10.1117/12.2281681
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KEYWORDS
Luminescence
Ultrasonics
Color centers
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