http://reply.papertrans.cn/1/23/2291/2291-31.png
Submitted on: 04 June 2018.
Revised on: 03 September 2018.
Accepted on: 01 November 2018.
___________________APPLIED SURFACE SCIENCE---ELSEVIER
Submitted on: 14 May 2001.
Revised on: 11 August 2001.
Accepted on: 06 October 2001.
___________________APPLIED SURFACE SCIENCE---ELSEVIER
Submitted on: 28 December 2011.
Revised on: 24 January 2012.
Accepted on: 17 March 2012.
___________________APPLIED SURFACE SCIENCE---ELSEVIER
Submitted on: 25 August 2004.
Revised on: 27 October 2004.
Accepted on: 10 November 2004.
___________________APPLIED SURFACE SCIENCE---ELSEVIER
http://reply.papertrans.cn/1/23/2291/2291-36.png