Institution: | [1]Key Laboratory of Ministry of Education for Opto-Electronic Technology and Intelligent Control, Lanzhou Jiaotong University, Lanzhou 730070, China [2]Department of Materials Science and Engineering, Akita University, Tegata Gakuen-machi, Akita 010-8502, Japan [3]Venture Business Laboratory, Akita University, Tegata Gakuen-machi, Akita 010-8502, Japan |