Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Oguz Han Asnaz"'
Publikováno v:
Communications Physics, Vol 5, Iss 1, Pp 1-8 (2022)
Plasma created nanoparticles have become a valuable technological product in many fields, from solar cells to pharmaceutical applications. The authors use self-excited dust density waves to study the properties of an electron depleted plasma containi
Externí odkaz:
https://doaj.org/article/7372fed30c1445fd83b1819ef9cfac66
Autor:
Oguz Han Asnaz, Jonas Drewes, Marie Elis, Thomas Strunskus, Franko Greiner, Oleksandr Polonskyi, Franz Faupel, Lorenz Kienle, Alexander Vahl, Jan Benedikt
Publikováno v:
Nanoscale Advances. 5:1115-1123
A novel combined setup of a gas aggregation source and a secondary radio frequency discharge is used to generate, confine, and coat nanoparticles. The approach is demonstrated by generating Ag@SiO2 nanoparticles with a well-defined surface coating.
Publikováno v:
Plasma Processes and Polymers. 19:2100190
Publikováno v:
Plasma Sources Science and Technology. 30:035011
We present an electrostatic particle extractor system (EPEX) which extracts particles from a reactive, particle-growing plasma by using the electrostatic force. The system is able to extract eight samples during a single growth cycle without the need
Publikováno v:
Physics of Plasmas. 26:053701
An in-situ method to measure the radii of single microparticles in plasmas with high precision is presented. The particles are trapped in the plasma sheath and illuminated with laser light. Using out-of-focus imaging and polarizing optics, the angle-
Publikováno v:
Journal of Plasma Physics. 82
The fundamentals of the ‘resonance method’ are presented. The method relies on evaluating the dynamic response of one or more dust particles in the sheath of a laboratory plasma to small external perturbations. It allows one to make in situ high-
Publikováno v:
Physics of Plasmas. 25:073702
The charging process of micrometer-sized irregularly shaped particles in the sheath of a radio frequency discharge is measured using a combination of long-distance microscopy and the phase-resolved resonance method. The applicability of the method is
Publikováno v:
Physics of Plasmas. 24:083701
This article presents two measurement techniques to determine the diameter of a single dust particle during plasma operation. Using long-distance microscopy (LDM), the particle is imaged from outside the plasma chamber. In combination with phase-reso
Publikováno v:
Physics of Plasmas. 22:053702
The structure of the ion wake behind a dust particle in the plasma sheath of an rf discharge is studied in a two-particle system. The wake formation leads to attractive forces between the negatively charged dust and can cause a reduction of the charg