1. Research Center for Applied SciencesAcademia Sinica Taipei 11529 Taiwan
2. Department of PhysicsNational (Taiwan) University Taipei 10617 Taiwan
3. Nano Science and TechnologyTaiwan International Graduate ProgramAcademia Sinica and National (Taiwan) University Taiwan
4. Department of ChemistryNational (Taiwan) University Taipei 10617 Taiwan
5. Institute of Atomic and Molecular ScienceAcademia Sinica Taipei 10617 Taiwan
6. Department of Materials Science and EngineeringNational Tsing Hua University Hsinchu 30013 Taiwan
7. College of EngineeringChang Gung University Taoyuan City 333 Taiwan