Triphenylene adsorption on Cu(111) and relevant graphene self-assembly

Chen Qiao-Yue¹, Song Jun-Jie³, Jing Liwei¹, Huang Kaikai¹, He Pimo^{1, 2, ‡}, Zhang Hanjie^{1, †}

(a) STM image of graphene self-assembly on Cu(111) substrate via TP molecules after 1000 K annealing (100 nm × 100 nm, V_T = −0.645 V, I_T = 0.661 nA). The blue arrow refers to graphene boundaries. (b) Moiré pattern of graphene on Cu(111) at 7° misorientation angle (15 nm × 15 nm, V_T = −0.987 V, I_T = 0.282 nA), and the blue circle in the figure indicates defects found on the surface. Both the black arrows indicate the [110] direction of Cu(111).