中国物理B ›› 2007, Vol. 16 ›› Issue (1): 95-99.doi: 10.1088/1009-1963/16/1/017
周伟列1, 刘春明2, 方丽梅2, 祖小涛3
Liu Chun-Ming(刘春明)a), Fang Li-Mei(方丽梅)a), Zu Xiao-Tao(祖小涛)a)b)†, and Zhou Wei-Lie(周伟列)c)
摘要: The microstructure and optical properties of Ni-doped SnO2 nano-powders are studied in detail. By Ni-doping, not only the grain size reduces, but also the grain shape changes from nano-rods to spherical particles. The crystallization becomes better with annealing temperature increasing. The band gap energy decreases as nickel doping level increases. The sp--d hybridization and alloying effect due to amorphous SnO2-X phase should be responsible for the band gap narrowing effect. Nickel dopant does not change the photoluminescence (PL) peak positions.
中图分类号: (Structure of nanocrystals and nanoparticles ("colloidal" quantum dots but not gate-isolated embedded quantum dots))