Luminescence of nanodiamond driven by atomic functionalization: Towards novel detection principles

0376576 - FZÚ 2013 RIV DE eng J - Článek v odborném periodiku
Petráková, V. - Taylor, Andrew - Kratochvílová, Irena - Fendrych, František - Vacík, Jiří - Kučka, Jan - Štursa, Jan - Cígler, Petr - Ledvina, Miroslav - Fišerová, Anna - Kneppo, P. - Nesládek, M.
Luminescence of nanodiamond driven by atomic functionalization: Towards novel detection principles.
Advanced Functional Materials. Roč. 22, č. 4 (2012), s. 812-819. ISSN 1616-301X. E-ISSN 1616-3028
Grant CEP: GA AV ČR KAN200100801; GA AV ČR KAN301370701; GA AV ČR(CZ) KAN400480701
Výzkumný záměr: CEZ:AV0Z10100520; CEZ:AV0Z10480505; CEZ:AV0Z40550506; CEZ:AV0Z50200510
Klíčová slova: nanodiamond * nanoparticles * luminescent centers * NV * surface functionalization * molecular imaging
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
Impakt faktor: 9.765, rok: 2012
http://arxiv.org/abs/1103.1397

Here we present a novel method for remote monitoring of chemical processes in biological environments based on color changes from photoluminescence of NV centers in ND. We propose to drive the NV luminescence chemically, by alternating the surface electric field developed by interacting atoms and molecules with the diamond surface. We demonstrate this phenomenon on oxidized and hydrogenated ND as well as single crystal diamond containing engineered NV centers to the nm-depth. The hydrogenation of NDs leads to quenching of luminescence related to negatively charged (NV-) centers and this way produces changes in the intensity ratio between NV- (636 nm) to neutral NV0 (575nm) centers. We discuss how the reduction of diamond size increases the magnitude of NV color shift mechanism.
Trvalý link: http://hdl.handle.net/11104/0208940