Please use this identifier to cite or link to this item:
|Title:||XPS studies on aluminum ions modified polyimide with the PIII technique|
|Citation:||Han, Z.J., Tay, B.K., Ha, P.C.T., Sze, J.Y., Chua, D.H.C. (2007). XPS studies on aluminum ions modified polyimide with the PIII technique. Journal of Applied Physics 101 (5) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.2709578|
|Abstract:||Polyimide samples modified by aluminum (Al) ions produced by filtered cathodic vacuum arc (FCVA) with plasma immersion ion implantation (PIII) technique, under ambient argon and oxygen gases (flow rate Ar: O2 =2:1) were investigated by x-ray photoelectron spectroscopy (XPS). The working pressure was about 8× 10-4 Torr and the plasma density was estimated to be 109 ions cm3. The applied bias voltages were varied from 5 to 12.5 kV but with fixed frequency at 900 Hz and duty time of 15 μs. For 1 min process time, C 1s and O 1s spectra for modified samples clearly indicated that the carbonyl group (C=O) was largely destroyed by incident Al ions while Al 2p spectra suggested Al atoms remain inside polyimide matrices in the form of C-O-Al complexes. For a 5 min process time, when the ion fluence became large, both C 1s and O 1s spectra suggested a structure of "aluminum oxide-mixed layer-polyimide" and Al 2p spectra confirmed that most Al atoms were bonded to oxygen atoms on the top surface. These XPS results revealed the chemical bonds between implanted and deposited Al ions and polyimide matrix by using the PIII technique. The structural information can also be suggested. Furthermore in this paper, some discussions with the theoretical [the stopping and range of ions in matter (SRIM)] simulation were also mentioned in order to explore the effectiveness of Al ions irradiation on polyimide..|
|Source Title:||Journal of Applied Physics|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Mar 21, 2019
WEB OF SCIENCETM
checked on Mar 12, 2019
checked on Nov 16, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.