Please use this identifier to cite or link to this item:
Title: Controlled synthesis, asymmetrical transport behavior and luminescence properties of Lanthanide doped ZnO mushroom-like 3D hierarchical structures
Authors: Yue, D
Lu, W
Jin, L
Li, CY
Luo, W
Wang, MN
Wang, ZL
Hao, JH 
Issue Date: 2014
Source: Nanoscale, 2014, v. 6, no. 22, p. 13795-13802
Abstract: Lanthanide doped ZnO mushroom-like 3D hierarchical structures have been fabricated by polyolmediated method and characterized by various microstructural and optical techniques. The results indicate that the as-prepared ZnO:Ln(3+) (Ln = Tb, Eu) samples have a hexagonal phase structure and possess a mushroom-like 3D hierarchical morphology. The length of the whole mushroom from stipe bottom to pileus top is about 1.0 mu m, and the diameters of pileus and stipe are about 0.8 mu m and 0.4 mu m, respectively. It is found that the flow of N-2 is the key parameter for the formation of the novel ZnO structure and the addition of (NH4)(2)HPO4 has a prominent effect on the phase structure and the growth of mushroom-like morphology. The potential mechanism of forming this morphology is proposed. The pileus of the formed mushroom is assembled by several radial ZnO:Ln(3+) nanorods, whereas the stipe is composed of over layered ZnO:Ln(3+) nanosheets. Moreover, asymmetrical I-V characteristic curves of ZnO:Ln(3+) mushrooms indicate that the texture composition of the 3D hierarchical morphology might lead to the asymmetrical transport behavior of electrical conductivity. Lanthanide doped ZnO samples can exhibit red or green emission under the excitation of UV tight.
Publisher: Royal Society of Chemistry
Journal: Nanoscale 
ISSN: 2040-3364
EISSN: 2040-3372
DOI: 10.1039/c4nr04359f
Appears in Collections:Journal/Magazine Article

View full-text via PolyU eLinks SFX Query
Show full item record


Last Week
Last month
Citations as of Jul 9, 2020


Last Week
Last month
Citations as of Jul 9, 2020

Page view(s)

Last Week
Last month
Citations as of Feb 16, 2020

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.