[Deng, Zhixiang; Fan, Dianyuan; Chen, Yu; Liu, Jun] Shenzhen Univ, Int Collaborat Lab 2D Mat Optoelect Sci & Technol, Key Lab Optoelect Devices & Syst, Minist Educ & Guangdong Prov,Coll Optoelect Engn, Shenzhen 518060, Peoples R China.
[Deng, Zhixiang] Univ South China, Sch Elect Engn, Hengyang 421001, Peoples R China.
[Liu, Jun] Aston Univ, Aston Inst Photon Technol, Sch Engn & Appl Sci, Birmingham B4 7ET, W Midlands, England.
[Zhao, Chujun] Hunan Univ, Lab Micro Nano Optoelect Devices, Minist Educ, IFSA Collaborat Innovat Ctr,Sch Phys & Elect, Changsha 410082, Hunan, Peoples R China.