Investigation of nanomechanical oscillators based on amorphous carbon whiskers in vacuum and at ambient pressure

18th International Conference PhysicA.SPb

Lukashenko, S.^1,3 ; Mukhin, I.^1,2 ; Veniaminov, A.^4 ; Sapozhnikov, I.^3 ; Mozharov, A.^1,2 ; Kupriyanov, D.^5 ; Golubok, A.^1,3

Department of Material Science and Nanotechnology, ITMO University, Kronverkskiy pr. 49, Saint-Petersburg

197101, Russia^1

Laboratory of Renewable Energy Sources, St Petersburg Academic University RAS, Khlopina, 8/3, Saint-Petersburg

194021, Russia^2

Nanotechnology Department, Institute for Analytical Instrumentation RAS, Rizhsky pr. 26, Saint-Petersburg

190103, Russia^3

Center for Information Optical Technologies, ITMO University, Birzhevaya ln. 14-16, Saint-Petersburg

199034, Russia^4

Mechatronics Department, ITMO University, Kronverkskiy pr. 49, Saint-Petersburg

197101, Russia^5

关键词: Ambient pressures;    Confocal laser scanning microscope;    In-vacuum;    Low pressures;    Nanomechanical oscillators;    Quality factors;    Resonant oscillation;    Vacuum condition;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/769/1/012062/pdf
DOI  :  10.1088/1742-6596/769/1/012062

来源: IOP

【 摘 要 】

Nanomechanical oscillators (NMO) on the base of amorphous C nanowhiskers, localized on the tops of W needles have been created and studied. Trajectories of resonant oscillations were visualized using a scanning electron microscope and a confocal laser scanning microscope. Resonant frequencies and the quality factor of NMO were determined at low pressure and in air. Reduction of the nanomechanical oscillators quality factor after the transition from vacuum condition to ambient pressure was not observed.