Citation:
LIU Juan, ZHANG Yue, QI Jun-jie, HE Jian, HUANG Yun-hua, ZHANG Xiao-mei. Fabrication and Characterization of In-doped Zinc Oxide Nanodisks[J]. Acta Physico-Chimica Sinica,
;2006, 22(01): 38-42.
doi:
10.3866/PKU.WHXB20060108
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In-doped ZnO nanodisks were successfully fabricated by thermal evaporation Zn, In2O3, and graphite powder mixture without catalyst. SEM images show that some ZnO nanodisks have perfect hexa nal shape, and others have dodeca n shape. These nanodisks are about 1~3 μm in size and 40~100 nm in thickness. XRD, TEM, and EDS investigations confirm single-crystalline ZnO with wurtzite structure. The hexa nal nanodisks grow mainly along the six symmetric directions of <10-10>, and the dodeca nal nanodisks grow along <2-1-10> and <10-10>, with both kinds of nanodisks′ growth along [0001] being suppressed. The In content of nanodisks reaches 2.2%. A possible mechanism is also proposed. Room temperature photoluminescence spectra of the nanodisks shows that the UV emission peak blueshifts and becomes broader after doping. These materials as building blocks have potential in applications such as optoelectronics.
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Keywords:
- In-doped;ZnO;Nanodisk;Photoluminescence
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