Supporting Information Performance Investigation of Multilayer MoS 2 Thin-Film Transistors Fabricated via Mask-free Optically Induced Electro-deposition Meng Li 1,2 , Na Liu 3 , Pan Li 1,2 , Jialin Shi 1,2 , Guangyong Li 1,4 , Ning Xi 1,5 , Yuechao Wang 1 ,and Lianqing Liu* ,1 1 State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China 2 University of the Chinese Academy of Sciences, Beijing 100049, China 3 School of Mechatronics Engineering and Automation, Shanghai University, Shanghai 200072, China. 4 University of Pittsburgh Pittsburgh, PA United States 5 Emerging Technologies Institute, Department of Industrial & Manufacturing Systems Engineering, University of Hong Kong Pokfulam, Hong Kong, China * Corresponding authors Email：lqliu@sia.cn S-1