Title :
Observation of W(100) and W(110) surface modified by praseodymium oxide by using XPS and LEED
Author :
Yoshihara, Jungo ; Nakane, Hideaki
Author_Institution :
Dept. of Electr. & Electron. Eng., Muroran Inst. of Technol., Muroran, Japan
Abstract :
When the surface of W(100) was modified by Pr-oxide, the work function of the W surface was reduced to 2.7 eV. The reducing mechanism of the work function has not been understood completely. In this report, Pr-oxide/W(110) surface was observed by using X-ray photoelectron spectroscopy (XPS) and low energy electron diffraction (LEED) and was compared with Pr-oxide/W(100) surface to understand the reducing mechanism of the work function.
Keywords :
X-ray photoelectron spectra; low energy electron diffraction; praseodymium compounds; tungsten; work function; LEED; Pr2O3-W; X-ray photoelectron spectroscopy; XPS; low energy electron diffraction; praseodymium oxide; work function; Chemical analysis; Crystallization; Electrons; Energy measurement; Heating; Spectroscopy; Surface cleaning; Surface structures; Temperature; X-ray diffraction;
Conference_Titel :
Vacuum Nanoelectronics Conference, 2009. IVNC 2009. 22nd International
Conference_Location :
Shizuoka
Print_ISBN :
978-1-4244-3587-6
Electronic_ISBN :
978-1-4244-3588-3
DOI :
10.1109/IVNC.2009.5271571
