Growth and optical properties of sallow-like hierarchical SnO2 nanostructures.
Novel self-organized hierarchical SnO2 nanostructures have been successfully prepared by vapor phase transport with the assistance of a stainless-steel grid at 950 degrees C. Scanning electron microscopy shows that the synthesized product displays interesting sallow-like morphology, in which numerous secondary branches (beak-like nanowires) are grown randomly around the main stems (microwires). Transmission electron microscopy analysis indicates that the branches grow along a direction of [100] and the beak is formed with the growth direction switching to [110]. A room temperature photoluminescence spectrum of the present SnO2 nanostructures shows a strong emission at 572 and 604 nm(-1).
Department of Electronic Engineering, East China Normal University, Shanghai 200062, PR China.
Feng
F
Xu
Ke
K
Yu
Meirong
M
Shi
Wei
W
Bai
Qiuxiang
Q
Zhang
Qingyan
Q
Wang
Qiong
Q
Li
Ziqiang
Z
Zhu
D002384:Catalysis; D008027:Light; D049449:Luminescence; D053768:Metal Nanoparticles / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D008956:Models, Chemical; D049329:Nanostructures / Q000737:chemistry; D053770:Nanowires; D055095:Optics and Photonics; D010777:Photochemistry / Q000379:methods; D012822:Silicon Dioxide / Q000737:chemistry*; D013696:Temperature; D014961:X-Ray Diffraction
D012822:Silicon Dioxide