1. Institute of Condensed Matter Physics, Zhejiang Institute of Photoelectronics & Zhejiang Institute for Advanced Light Source, Zhejiang Normal University, Jinhua 321004, China
2. Institute of Textiles and Clothing, The Hong Kong Polytechnic University Hung Hom, Kowloon, Hong Kong 999077, China
3. Department of Fiber Science and Apparel Design, Cornell University, Ithaca, New York 14853-4401, United States