Dependence of the energetic structure of the diamond NV centre on nanodiamond surface termination: quantum chemical calculations

0342645 - FZÚ 2011 BE eng A - Abstrakt
Kovalenko, A. - Taylor, A. - Kratochvílová, Irena - Fendrych, František - Řezáčová, V. - Petrák, Václav - Záliš, Stanislav - Šebera, Jakub
Dependence of the energetic structure of the diamond NV centre on nanodiamond surface termination: quantum chemical calculations.
Hasselt Diamond Workshop 2010. Hasselt: Hasselt University, 2010. s. 94. ISBN N.
[Hasselt Diamond Workshop 2010. 22.02.2010.-24.02.2010, Hasselt]
Grant CEP: GA AV ČR KAN401770651
Výzkumný záměr: CEZ:AV0Z10100520; CEZ:AV0Z40400503
Klíčová slova: nanodiamond * NV colour centre * luminescence shifts
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
http://www.imo.uhasselt.be/SBDD2010/

Trapping of a vacancy at a nitrogen impurity in diamond leads to the formation of a luminescent defect, called the NV colour centre, being either neutral (NV0) or negatively charged (NV-). Both of these centres are photostable and can be detected in individual 10-100 nm sized particles, which allows application of nanodiamonds for intracellular imaging. However the charge transfer between the NVo and NV- causes luminescence shifts [1]. In our previous work we have studied such shifts by measuring PL response of oxidised and hydrogen terminated diamond nanoparticles and established differences in relative weight of NVo and NV- luminescence upon the surface functionalisation changes.
Trvalý link: http://hdl.handle.net/11104/0005879