Low Residual Carrier Concentration and High Mobility in 2D Semiconducting Bi2O2Se Wu, Jinxiong ; Qiu, Chenguang ; Fu, Huixia ; Chen, Shulin ; Zhang, Congcong ; Dou, Zhipeng ; Tan, Congwei ; Tu, Teng ; Li, Tianran ; Zhang, Yichi ; Zhang, Zhiyong ; Peng, Lian-Mao ; Gao, Peng ; Yan, Binghai ; Peng, Hailin Abstract Publication: Nano Letters Pub Date: January 2019 DOI: 10.1021/acs.nanolett.8b03696 Bibcode: 2019NanoL..19..197W