1. Guangxi Key Laboratory of Optical and Electronic Materials and Devices Guilin University of Technology Guilin 541004 China
2. Sauvage Laboratory for Smart Materials School of Materials Science and Engineering Harbin Institute of Technology Shenzhen 518055 China
3. Department of Machine Intelligence and Systems Engineering Faculty of Systems Science and Technology Akita Prefectural University Yurihonjo 015-0055 Japan