Tunable edge bands and optical properties in black phosphorus nanoribbons under electric field<xref rid="cpb_27_12_127301fn1" ref-type="fn">*</xref> <fn id="cpb_27_12_127301fn1"> <label>*</label> <p>Project supported by the National Natural Science Foundation of China (Grant No. 10947004) and the Jiangsu Government Scholarship for Overseas Studies.</p> </fn>

Tunable edge bands and optical properties in black phosphorus nanoribbons under electric field* *

Project supported by the National Natural Science Foundation of China (Grant No. 10947004) and the Jiangsu Government Scholarship for Overseas Studies.

Liu Hong^†

(color online) The geometrical structure of nZZ-BPNR with the width N_w = 20 (the number of atoms in one unit cell). The unit cell is shown in the dashed rectangle frame.