1. Tianjin Key Laboratory of Film Electronic and Communication Devices Engineering Research Center of Optoelectronic Devices & Communication Technology Ministry of Education School of Integrated Circuit Science and Engineering Tianjin University of Technology Tianjin 300384 China
2. Frontier Institute of Chip and System Fudan University Shanghai 200433 China
3. State Key Laboratory of Functional Materials for Informatics Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Shanghai 200050 China