1. Nano Science and Technology Program, Taiwan International Graduate Program, Institute of Physics, Academia Sinica, 128, Sec. 2, Academia Road, Nankang, Taipei 11529, Taiwan
2. Department of Engineering and System Science, National Tsing Hua University, ESS New Building, 101, Sec. 2, Kuang-Fu Road, Hsinchu 30013, Taiwan
3. Institute of Physics, Academia Sinica, 128, Sec. 2, Academia Road, Nankang, Taipei 11529, Taiwan
4. Department of Chemistry, National Taiwan University, 1, Sec. 4, Roosevelt Road, Daan, Taipei 10617, Taiwan
5. Research Centre for Applied Sciences, Academia Sinica, 128, Sec. 2, Academia Road, Nankang, Taipei 11529, Taiwan
6. Genomic Research Centre, Academia Sinica, 128, Sec. 2, Academia Road, Nankang, Taipei 11529, Taiwan