Thesis supervisor: Miklós Veres
Location of studies (in Hungarian): HUN-REN Wigner Research Centre for Physics Abbreviation of location of studies: WFK
Description of the research topic:
Diamond, which is normally considered to be a metastable form of carbon, can be converted to graphite by appropriate pulsed laser treatment. The process works both on diamond micro- and nanocrystals and nanodiamond thin films, and can be used, for example, to create electrically conductive channels in the inherently insulating diamond structure. By fine-tuning the conditions of the pulsed laser treatment, it is also possible to achieve the formation of defect sites instead of graphitic transformation in the diamond structure, with well-defined light emission properties, being important for practical applications.
The aim of the research is to create defects in nanocrystalline diamond thin films by femtosecond laser treatment: to prepare nanodiamond thin films of different morphologies and thicknesses and then perform their femtosecond laser irradiation by varying the wavelength, pulse energy and irradiation time; to determine the correlations between the structural changes and the light emission properties of the diamond and the irradiation parameters.
Number of students who can be accepted: 1
Deadline for application: 2024-06-30
2024. IV. 17. ODT ülés Az ODT következő ülésére 2024. június 14-én, pénteken 10.00 órakor kerül sor a Semmelweis Egyetem Szenátusi termében (Bp. Üllői út 26. I. emelet).
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