Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Somsakul Watcharinyanon"'
Autor:
Chariya Virojanadara, Erik Janzén, Rositza Yakimova, Somsakul Watcharinyanon, Alexei A. Zakharov, Tihomir Iakimov, Jawad Ul Hassan, Chao Xia, Leif I. Johansson
Publikováno v:
Crystals, Vol 3, Iss 1, Pp 1-13 (2013)
Graphene grown on C-face SiC substrates using two procedures, high and low growth temperature and different ambients, was investigated using Low Energy Electron Microscopy (LEEM), X-ray Photo Electron Electron Microscopy (XPEEM), selected area Low En
Externí odkaz:
https://doaj.org/article/bf815698a7a74e9684cab63b6989d072
Autor:
Chariya Virojanadara, Rositza Yakimova, Yuran Niu, Somsakul Watcharinyanon, Chao Xia, Leif I. Johansson, Alexei Zakharov
Publikováno v:
Materials, Vol 8, Iss 8, Pp 4768-4777 (2015)
Materials
Volume 8
Issue 8
Pages 4768-4777
Materials
Volume 8
Issue 8
Pages 4768-4777
An investigation of how electron/photon beam exposures affect the intercalation rate of Na deposited on graphene prepared on Si-face SiC is presented. Focused radiation from a storage ring is used for soft X-ray exposures while the electron beam in a
Autor:
Chao Xia, Chariya Virojanadara, Rositsa Yakimova, Leif I. Johansson, Alexei Zakharov, Somsakul Watcharinyanon
Publikováno v:
Surface Science. 613:88-94
The effects induced by Na deposited on furnace grown graphene on SiC(0001) and after subsequent annealing are investigated using LEEM, mu-LEED, mu-PES and XPEEM. Intercalation in between carbon layers and at the interface is observed to occur both on
Autor:
Axel Meyer, Chariya Virojanadara, Leif I. Johansson, Somsakul Watcharinyanon, Jan Ingo Flege, Jens Falta, Chao Xia
Publikováno v:
Graphene. :66-73
The rare-earth metal, ytterbium (Yb), was deposited on graphene grown on Si-face SiC, kept at room temperature. Yb was not found to intercalate, destroy or dope the graphene layer before subsequent heating, unlike alkali metals such as Li and Na. Our
Autor:
Rositza Yakimova, Chariya Virojanadara, Somsakul Watcharinyanon, Leif I. Johansson, Alexei Zakharov
Publikováno v:
Materials Science Forum. :613-616
Graphene samples were grown on the C-face of SiC, at high temperature in a furnace and an Ar ambient, and were investigated using LEEM, XPEEM, LEED, XPS and ARPES. Formation of fairly large grains (crystallographic domains) of graphene exhibiting sha
Autor:
Jens Falta, J. I. Flege, Somsakul Watcharinyanon, Axel Meyer, Chariya Virojanadara, Jawad ul Hassan, Erik Janzén, Ivan Gueorguiev Ivanov, Leif I. Johansson
Publikováno v:
Materials Science Forum. :605-608
We report graphene thickness, uniformity and surface morphology dependence on the growth temperature and local variations in the off-cut of Si-face 4H-SiC on-axis substrates. The transformation of the buffer layer through hydrogen intercalation and t
Publikováno v:
Surface Science. 606:401-406
The effects of Li deposition on hydrogenated bilayer graphene on SiC(0001) samples, i.e. on quasi-freestanding bilayer graphene samples, are studied using low energy electron microscopy, micro-low-energy electron diffraction and photoelectron spectro
Publikováno v:
Surface Science. 605:1918-1922
Epitaxial graphene grown on the silicon-terminated SiC(0001) is doped by alkali metals deposited on the surface. The synchrotron radiation based photoelectron spectroscopy results presented reveal ...
Autor:
Leif I. Johansson, Alexei Zakharov, Chariya Virojanadara, Roger Uhrberg, Jacek R. Osiecki, Somsakul Watcharinyanon, Rositsa Yakimova
Publikováno v:
Surface Science. 605:1662-1668
Atomic hydrogen exposures on a monolayer graphene grown on the SiC(0001) surface are shown to result in hydrogen intercalation. The hydrogen intercalation induces a transformation of the monolayer graphene and the carbon buffer layer to bi-layer grap
Autor:
Jan-Erling Bäckvall, Ellen Moons, Somsakul Watcharinyanon, Lars Johansson, Emmanuelle Göthelid, Carla Puglia
Publikováno v:
Surface Science. 603:1026-1033
Tetraphenylporphyrins bearing four linkers consisting of thioacetyl-functionalized carbon chains were immobilized on a gold surface via thiolate-gold bonds using two different preparation routes. T ...