Title of article
Well-aligned ZnO microprism arrays with umbrella-like tips: Low-temperature preparation, structure and UV photoluminescence improvement
Author/Authors
H.B. Lu، نويسنده , , L. Liao، نويسنده , , H. Li، نويسنده , , D.F. Wang، نويسنده , , J.C. Li، نويسنده , , Q. Fu، نويسنده , , B.P. Zhu، نويسنده , , Y. Wu، نويسنده ,
Issue Information
دوهفته نامه با شماره پیاپی سال 2008
Pages
6
From page
2931
To page
2936
Abstract
Catalyst-free, low-temperature (430 °C), high-density, well-aligned, single-crystalline zinc oxide (ZnO) microprism (ZMP) arrays have been synthesized over the entire c-ZnO/poly-Zn-coated Si substrates by simple thermal evaporation of Zn powder. Specially, the microprisms obtained possess hexagonal umbrella-like tips on which vertical thin ZnO nanowires grow. The growth mechanism of a three-stage thermodynamic process was discussed. Photoluminescence spectra show a strong ultraviolet (UV) emission enhancement of the ZMPs after H+ (hydrogen ions) implantation. This kind of special ZnO microstructure may find potential applications in field emission, UV laser emission devices, multifunctional microdevices and highly integrated multichannel nano-optoelectronic devices.
Keywords
ZnO , Crystal growth , Microstructures , H+ implantation , Optical properties
Journal title
Physica E Low-dimensional Systems and Nanostructures
Serial Year
2008
Journal title
Physica E Low-dimensional Systems and Nanostructures
Record number
1047473
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