Thermo-controllable self-assembled structures of single-layer 4, 4″-diamino-p-terphenyl molecules on Au (110)<sup>

Thermo-controllable self-assembled structures of single-layer 4, 4″-diamino-p-terphenyl molecules on Au (110)

Ren Junhai^¹, Bao De-Liang^¹, Dong Li^¹, Gao Lei^¹, Wu Rongting^¹, Yan Linghao^¹, Wang Aiwei^¹, Yan Jiahao^¹, Wang Yeliang^{¹, ²}, Du Shi-Xuan^{¹, ², †}, Huan Qing^{¹, ², ‡}, Gao Hong-Jun^{¹, ²}

(color online) The comparison of the DAT molecular structures in the Au (110)-(1 × 5) reconstruction after annealing the monolayer sample at 100 ° and 200 °C, respectively. (a), (b), and (c) High-resolution STM image, structural models, and simulated STM image of DAT molecules in (1 × 5) reconstruction after annealing at 100 °C, respectively. (d) A line profile in Fig. 2(a). (e), (f), and (g) High-resolution STM image, structural models, and simulated STM image of DAT molecules in (1 × 5) reconstruction after annealing at 200 °C, respectively. (h) A line profile in Fig. 2(e). The scanning conditions are −1.33 V, 0.1 nA in panel (a) and −0.76 V, 0.1 nA in panel (e), respectively.