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|Title:||Electroluminescence and field emission of Mg-doped ZnO tetrapods|
|Authors:||Pan, H. |
|Citation:||Pan, H., Zhu, Y., Sun, H., Feng, Y., Sow, C.-H., Lin, J. (2006-10-28). Electroluminescence and field emission of Mg-doped ZnO tetrapods. Nanotechnology 17 (20) : 5096-5100. ScholarBank@NUS Repository. https://doi.org/10.1088/0957-4484/17/20/009|
|Abstract:||ZnO tetrapods doped with Mg (Mg-ZnOTs) were produced by thermally oxidizing Zn and Mg powders. TEM and XRD patterns indicated that Mg-ZnOTs were crystalline with wurtzite structure. The transport measurements of Mg-ZnOT powder demonstrated that Mg-doped ZnO tetrapods are characteristic of a semiconductor with lower threshold voltage. Two peaks were clearly observed in the electroluminescence spectra. The blue light emission is related to the inter-band transition. The green or yellow light emission was induced by impurity centre recombination. Mg-doped ZnO exhibited better field emission properties with higher emission current density and lower turn-on field than pure ZnO nanowires. And ZnO with higher Mg content exhibited better field-emission properties with higher emission current density than ZnO with lower Mg content. © 2006 IOP Publishing Ltd.|
|Appears in Collections:||Staff Publications|
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