1. Department of Applied Chemistry, Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yamaguchi 35203, Japan
2. Mechanical Engineering Department, College of Engineering and Computing, University of South Carolina, Columbia, South Carolina 29208, United States
3. Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
4. School of Physical and Mathematical Sciences and School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore
5. Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
6. NUSNNI-Nanocore, Singapore 119077, Singapore