Photochromic properties of modified nanodiamonds

A functionalization of the surface of detonation nanodiamonds by photochromic spirocompounds from the classes of spiropyrans and spirooxazines has been carried out for the first time. A comparative study of the interaction of nanodiamonds with positive and negative potential is performed by the spec...

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Bibliographic Details
Published in:Optics and spectroscopy 2017-05, Vol.122 (5), p.729-734
Main Authors: Venidiktova, O. V., Valova, T. M., Barachevsky, V. A., Ait, A. O., Lebedev-Stepanov, P. V., Vul, A. Ya, Koltsova, L. S., Shienok, A. I., Zaichenko, N. L.
Format: Article
Language:English
Subjects:
Absorption spectra
Condensed-Matter Spectroscopy
Detonation
Diamonds
Lasers
Nanostructure
Optical Devices
Optics
Photochromism
Photonics
Physics
Physics and Astronomy
Spiropyrans
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Summary:A functionalization of the surface of detonation nanodiamonds by photochromic spirocompounds from the classes of spiropyrans and spirooxazines has been carried out for the first time. A comparative study of the interaction of nanodiamonds with positive and negative potential is performed by the spectral–kinetic method, which shows the possibility of surface modification by only functionalized molecules of spirocompounds with the formation of surface proton complexes. This is confirmed by the hypsochromic shift of the absorption bands of the photoinduced merocyanine forms of adsorbed molecules of spirocompounds and by the decrease of the speed of their dark relaxation to the initial state in the presence of nanodiamonds with a negative potential.
ISSN:0030-400X
1562-6911
DOI:10.1134/S0030400X17050204