1. International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Shaanxi 710049, China
2. Department of Physics, Tamkang University, 151 Yingzhuan Road, New Taipei City 25137, Taiwan
3. Department of Electrophysics, National Chiao Tung University, 101 Hsin-Ann Road, Hsinchu Science Park, Hsinchu 30076, Taiwan