title: SnO₂@CdS nanowire-quantum dots heterostructures: tailoring optical properties of SnO₂ for enhanced photodetection and photocatalysis.
abstract: Rationally designed SnO2@CdS nanowire-quantum dots (QDs) heterostructures were realized by a wet-chemical method via hydroxide cluster growth mechanism on high crystalline quality SnO2 nanowires, which were synthesized by a vapor transport method. The heterostructures showed enhanced photon harvesting capability and photodetection sensitivity at visible regime than that of wide band gap homogeneous SnO2 nanowires, as characterized by UV-Vis absorption and photoconductivity measurements. In addition, the SnO2@CdS nanowire-QDs heterostructures showed enhanced photocatalytic activity by more than 109% in a conceptual demonstration of photodegradation of methylene blue solution. Our results suggest that the SnO2@CdS nanowire-QDs heterostructures exhibit considerable promise for highly sensitive visible-light photodetectors and highly efficient photocatalysis.
authors: State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, China. jun.pan@csu.edu.cn
authors: Jun
authors: J
authors: Pan
authors: Jiangtian
authors: J
authors: Li
authors: Zilai
authors: Z
authors: Yan
authors: Banghong
authors: B
authors: Zhou
authors: Hanshuo
authors: H
authors: Wu
authors: Xiang
authors: X
authors: Xiong