1. Division of Preparatory Programs for Overseas Chinese Students, National Taiwan Normal University, Linkou, New Taipei City 24449, Taiwan
2. Department of Applied Materials Science and Technology, Minghsin University of Science and Technology, Hsinchu 30401, Taiwan
3. Instrumentation Center, National Taiwan University, Taipei 10617, Taiwan
4. Department of Chemistry, Fu Jen Catholic University, New Taipei City 242, Taiwan