1. Department of Chemistry; National Taiwan University; Taipei 106 Taiwan
2. Institute of Applied Materials Science; Vietnam Academy of Science and Technology; Hochiminh City 700000 Vietnam
3. Institute of Experimental Physics; University of Gdansk; Wita Stwosza 57 80-952 Gdansk Poland
4. Department of Mechanical Engineering and Graduate Institute of Manufacturing Technology; National Taipei University of Technology; Taipei 106 Taiwan