Characterization of tungsten surfaces by simultaneous work function and secondary electron emission measurements

被引：49

作者：

Vida, G

Josepovits, VK

Gyor, M

Deák, P

机构：

[1] Budapest Univ Technol & Econ, Dept Atom Phys, Surface Phys Lab, H-1111 Budapest, Hungary

[2] Gen Elect hungary Tungsram Lighting, High Intens Discharge Lamp Technol, H-1042 Budapest, Hungary

来源：

MICROSCOPY AND MICROANALYSIS | 2003年 / 9卷 / 04期

关键词：

tungsten; work function; secondary electron emission; discharge lamps;

D O I：

10.1017/S143192760303023X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The changes of the work function (Phi) and the secondary electron emission (SEE) of oxygen covered polycrystalline tungsten occurring after ion sputtering and heat treatments have been investigated. The chemical composition was analyzed by X-ray photoelectron spectroscopy (XPS), and the electron emission properties by work function spectroscopy (WFS). We observed in what manner the chemical changes of the surface are reflected in the work function and SEE. The simultaneous change of Phi and SEE in the case of oxygen covered tungsten have been pointed out and a direct relationship between them can be supposed.

引用

页码：337 / 342

页数：6

共 23 条

[1] ADSORPTION OF OXYGEN ON W(100) - ADSORPTION-KINETICS AND STRUCTURE
BAUER, E
POPPA, H
VISWANATH, Y
[J]. SURFACE SCIENCE, 1976, 58 (02) : 517 - 549
[2] THE SURFACE-POTENTIAL BARRIER IN SECONDARY-EMISSION FROM SEMICONDUCTORS
BOUCHARD, C
CARETTE, JD
[J]. SURFACE SCIENCE, 1980, 100 (01) : 251 - 268
[3] INFLUENCE OF ELECTRIC-FIELDS ON ADSORBED GASES - FEM OF OXYGEN ON TUNGSTEN SINGLE-CRYSTAL FACES
DOMKE, M
BLOCK, JH
DRECHSLER, M
[J]. SURFACE SCIENCE, 1975, 51 (02) : 451 - 468
[4] ADSORPTION STUDIES BASED ON THERMIONIC EMISSION MEASUREMENTS .3. OXYGEN ON POLYCRYSTALLINE W,MO,TA,AND RE
GREAVES, W
STICKNEY, RE
[J]. SURFACE SCIENCE, 1968, 11 (03) : 395 - &
[5] ADSORPTION OF OXYGEN ON SURFACES OF (110) AND (100) ORIENTED TUNGSTEN SINGLE CRYSTALS
HOPKINS, BJ
PENDER, KR
[J]. SURFACE SCIENCE, 1966, 5 (01) : 155 - &
[6] JENKINS RO, 1965, ELECT ION EMISSION
[7] KATSCHER H, 1979, GMELIN HDB ANORGANIS
[8] KATSCHER H, 1978, GMELIN HDB ANORGANIS
[9] DETERMINATION OF THE RATES OF BOTH WORK FUNCTION CHANGE AND RESIDUAL-GAS ADSORPTION ON A TUNGSTEN SURFACE HEATED IN A HIGH-VACUUM
KAWANO, H
OHGAMI, K
FUNATO, K
NAKAMURA, J
[J]. VACUUM, 1995, 46 (8-10) : 1145 - 1148
[10] Dependencies of secondary electron yields on work function for metals by electron and ion bombardment
Kudo, M
Sakai, Y
Ichinokawa, T
[J]. APPLIED PHYSICS LETTERS, 2000, 76 (23) : 3475 - 3477

← 1 2 3 →