Generation of silicon nanostructures by atmospheric microplasma jet: the role of hydrogen admixture

0456666 - FZÚ 2016 RIV DE eng J - Článek v odborném periodiku
Barwe, B. - Stein, A. - Cibulka, Ondřej - Pelant, Ivan - Ghanbaja, J. - Belmonte, T. - Benedikt, J.
Generation of silicon nanostructures by atmospheric microplasma jet: the role of hydrogen admixture.
Plasma Processes and Polymers. Roč. 12, č. 2 (2015), s. 132-140. ISSN 1612-8850. E-ISSN 1612-8869
Institucionální podpora: RVO:68378271
Klíčová slova: atmospheric pressure plasmas * HRTEM * microplasmas * photoluminescence * silicon nanocrystals
Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech
Impakt faktor: 2.713, rok: 2015

Silicon nanostructures are synthesized with a DC atmospheric pressure microplasma jet using an Ar/SiH4/H-2 gas mixture. The plasma is characterized by OES and imaged using an EMCCD camera. The effect of hydrogen admixture to the formed structures is studied by transmission electron microscopy. Under specific conditions, crystalline silicon nanoparticles grow in an amorphous matrix investigated by electron energy loss spectroscopy. As-grown silicon nanoparticles are collected in ethanol for dynamic light scattering and photoluminescence measurements. The size distribution peaks at 4nm. The silicon nanocrystals exhibit roomtemperature photoluminescence that peaks at approximate to 415 and approximate to 465 nm.
Trvalý link: http://hdl.handle.net/11104/0257159