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Spectroscopic Characterization of Nanodiamond Solutions using Photothermal and Fluorescence Measurements

Published online by Cambridge University Press:  29 August 2014

Gour Pati ,
Z. Warren ,
M. J. Williams ,
A. Marcano  and
Renu Tripathi
Gour Pati
Affiliation:
Department of Physics & Engineering, Delaware State University, Dover, DE – 19901, U.S.A.
Z. Warren
Affiliation:
Department of Physics & Engineering, Delaware State University, Dover, DE – 19901, U.S.A.
M. J. Williams
Affiliation:
Department of Physics & Engineering, Delaware State University, Dover, DE – 19901, U.S.A.
A. Marcano
Affiliation:
Department of Physics & Engineering, Delaware State University, Dover, DE – 19901, U.S.A.
Renu Tripathi
Affiliation:
Department of Physics & Engineering, Delaware State University, Dover, DE – 19901, U.S.A.
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Abstract

Absorption, scattering and fluorescent properties of several different types of nanodiamond samples are measured to characterize them for various applications. Two different methods, spectrophotometry and photothermal spectroscopy were used to measure absorption properties of nanodiamonds suspended in aqueous solutions. Photothermal spectroscopy provides the advantage of measuring absorption of photoactive nanodiamonds with high-sensitivity. Spectral fluorescence properties of nanodiamond samples were studied using a commercial spectrofluorometer and a home-built inverted microscope integrated with a light-sensitive imaging spectrograph. Characteristic fluorescence spectrum of nitrogen-vacancy defects in single diamond nanocrystals was obtained using the light-sensitive instrument.

Keywords

absorptiondiamondoptical
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1703: Symposium PP – Nanodiamonds—Fundamentals and Applications , 2014 , mrss14-1703-pp07-07
Copyright
Copyright © Materials Research Society 2014 

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References

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