In-doped zinc oxide dodecagonal nanometer thick disks

In-doped ZnO nanometer thick disks were successfully fabricated by thermal evaporation of a powder mixture of Zn, In 2O 3 and graphite without catalyst. SEM images show that some ZnO disks have perfect dodecagon shape. These disks are about 1∼3 μm in size and 40∼100 nm in thickness. XRD, TEM and EDS...

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Bibliographic Details
Published in:Materials letters 2006-09, Vol.60 (21), p.2623-2626
Main Authors: Liu, Juan, Zhang, Yue, Qi, Junjie, Huang, Yunhua, Zhang, Xiaomei, Liao, Qingliang
Format: Article
Language:English
Subjects:
Disk
In-doping
ZnO
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Summary:In-doped ZnO nanometer thick disks were successfully fabricated by thermal evaporation of a powder mixture of Zn, In 2O 3 and graphite without catalyst. SEM images show that some ZnO disks have perfect dodecagon shape. These disks are about 1∼3 μm in size and 40∼100 nm in thickness. XRD, TEM and EDS observations show that the disks are single-crystalline ZnO with wurtzite structure. The disks grow mainly along the twelve symmetric directions of and , while the growth along [0001] is suppressed. The In content of the disks reaches 27.4 at.%. Room temperature photoluminescence spectra show that the UV emission peak blueshifts and become broader after doping.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2006.01.051