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Magnetical and optical properties of nanodiamonds can be tuned by particles surface chemistry: theoretical and experimental study

  1. 1.
    0434519 - FZÚ 2015 RIV US eng J - Článek v odborném periodiku
    Kratochvílová, Irena - Šebera, Jakub - Ashcheulov, Petr - Golan, Martin - Ledvina, Miroslav - Mičová, Júlia - Mravec, F. - Kovalenko, A. - Zverev, D. - Yavkin, B. - Orlinskii, S. - Záliš, Stanislav - Fišerová, Anna - Richter, Jan - Šefc, L. - Turánek, J.
    Magnetical and optical properties of nanodiamonds can be tuned by particles surface chemistry: theoretical and experimental study.
    Journal of Physical Chemistry C. Roč. 118, č. 43 (2014), s. 25245-25252. ISSN 1932-7447. E-ISSN 1932-7455
    Grant CEP: GA TA ČR TA01011165; GA ČR(CZ) GA14-10279S
    Institucionální podpora: RVO:68378271 ; RVO:61388971 ; RVO:61388963 ; RVO:61388955
    Klíčová slova: nanodiamond particles * NV luminescent centers * surface functionalization * DFT
    Kód oboru RIV: CF - Fyzikální chemie a teoretická chemie
    Impakt faktor: 4.772, rok: 2014

    In this paper, new steps towards better understanding and utilization of high-pressure high-temperature nanodiamonds (NDs) containing nitrogen-vacancy (NV) centres have been taken. NV−-related long-term luminescence of oxygenated particles increased in comparison to plasma hydrogenated NDs’ NV− luminescence. The optically detected NV– electron spin resonance process can be also significantly affected by ND termination. For H-terminated ND particles the NV−to NV0 conversion energy is lower than the NV– excitation energy, so that the delocalised triplet electrons can be more easily released from the original positions and drawn to the electron-attracting localities in the material. The final result of this study was application of luminescent NDs in cells, showing the detectability of luminescent NDs in a standard confocal microscope and ND subcellular distribution in the cells by TEM.
    Trvalý link: http://hdl.handle.net/11104/0243489

     
     
Počet záznamů: 1  

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