1. Key Laboratory for Thin Film and Microfabrication Technology of Ministry of Education, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
2. Shanghai Engineering Research Center for Intelligent Diagnosis and Treatment Instrument, 800 Dongchuan Road, Shanghai 200240, P. R. China
3. Key Laboratory of Thin Film and Microfabrication (Ministry of Education), Department of Micro/Nano Electronics, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
4. School of Biomedical Engineering, Institute for Personalized Medicine, Shanghai Jiao Tong University, Shanghai 200030, P. R. China
5. Department of Physics, Fudan University, Shanghai 200433, P. R. China