National Engineering Research Center of Electromagnetic Radiation Control Materials;
School of Electronic Science and Engineering;
University of Electronic Science and Technology of China;
Chengdu 611731;
China;
State Key Laboratory of Electronic Thin Films and Integrated Devices;
University of Electronic Science and Technology of China;
Chengdu 610054;
China;
Key Laboratory of Multi-Spectral Absorbing Materials and Structures of Ministry of Education;
University of Electronic Science and Technology of China;
Chengdu 610054;
China;