Highly quality 2D Bi_(2)Te_(3)nanoplates are obtained via solvothermal synthesis and cations with different chemical valences(Ag^(+)/Cu^(2+)/In^(3+))are doped into Bi_(2)Te_(3)by a cation exchange reaction in ethanol ...Highly quality 2D Bi_(2)Te_(3)nanoplates are obtained via solvothermal synthesis and cations with different chemical valences(Ag^(+)/Cu^(2+)/In^(3+))are doped into Bi_(2)Te_(3)by a cation exchange reaction in ethanol solution at room temperature.By combining precise XRD,SEM,HRTEM and XPS characterization,the cations are shown to be doped into the lattice of Bi_(2)Te_(3)bringing lattice defects and distortion,and cation-doping caused a change in chemical state but without obvious changes in the hexagonal morphology.This research provides a possible general strategy for obtaining cation-doped bismuth telluride.展开更多
基金supported by the Technology Plan of Shenzhen City(Grant no.JCYJ20170412171554022)the National Natural Science Foundation of China(Grant no.51631001,21643003,51702016,51501010,21673058)+2 种基金the Science and Technology Innovation Commission of Shenzhen(Grant no.JCYJ20150529164656097,JSGG20160226201833790,JCYJ20170818093832350)the Guangdong Natural Science Fund for Distinguished Young Scholars(Grant no.2016A030306020)the Guangdong Youth Talent Plan(Grant no.2015TQ01C536).
文摘Highly quality 2D Bi_(2)Te_(3)nanoplates are obtained via solvothermal synthesis and cations with different chemical valences(Ag^(+)/Cu^(2+)/In^(3+))are doped into Bi_(2)Te_(3)by a cation exchange reaction in ethanol solution at room temperature.By combining precise XRD,SEM,HRTEM and XPS characterization,the cations are shown to be doped into the lattice of Bi_(2)Te_(3)bringing lattice defects and distortion,and cation-doping caused a change in chemical state but without obvious changes in the hexagonal morphology.This research provides a possible general strategy for obtaining cation-doped bismuth telluride.
