T. Tanaka et al., Measurement of X-ray absorption spectra (XAS) of insulators by the partialelectron yield method using an electron flood gun, J ELEC SPEC, 114, 2001, pp. 1077-1081
Citations number
8
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA
X-ray absorption spectra (XAS) of bulk insulator samples were successfully
obtained by using the partial electron yield method, which involves a low-e
nergy flood gun, floating Ar ion gun, and an electron detector. The low-ene
rgy flood gun and floating Ar ion gun are used to avoid charging of the ins
ulator surface during the measurement. A retarding mesh located in front of
the electron detector was used to reject the law-energy electrons scattere
d by the sample surface. For two polymer samples (polytetrafluoroethylene f
ilm and polyimide film) and one insulating ceramic disk (hexagonal boron-ni
tride), the optimal operating conditions for the electron flood gun, Ar ion
gun, and retarding voltage were sample-dependent. (C) 2001 Elsevier Scienc
e BN. All rights reserved.