Benzenedicarboxylic acid-assisted synthesis of ZnO micro-hexagons from zinc hydroxide nanostrands and their photoluminescence properties

ZnO micro-hexagons with controllable morphologies were synthesized with the assist of benzenedicarboxylic acid (BDC) from zinc hydroxide nanostrands at 120 °C. With increasing the concentration of BDC, the structures evolved from hexagonal disks to hexagonal pyramids and eventually to coarse hexagon...

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Bibliographic Details
Published in:Applied physics. A, Materials science & processing Materials science & processing, 2015-02, Vol.118 (2), p.683-690
Main Authors: Li, Junwei, Mao, Yiyin, Cao, Wei, Sun, Luwei, Peng, Xinsheng
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Condensed Matter Physics
Disks
Hexagons
Hydroxides
Machines
Manufacturing
Nanostructure
Nanotechnology
Optical and Electronic Materials
Photoluminescence
Physics
Physics and Astronomy
Processes
Pyramids
Surfaces and Interfaces
Thin Films
Zinc
Zinc oxide
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Summary:ZnO micro-hexagons with controllable morphologies were synthesized with the assist of benzenedicarboxylic acid (BDC) from zinc hydroxide nanostrands at 120 °C. With increasing the concentration of BDC, the structures evolved from hexagonal disks to hexagonal pyramids and eventually to coarse hexagonal pyramid flakes. The reason was that the growth along the c axis was preferentially suppressed at relatively low BDC concentration, while at higher concentration, the BDC could uniformly adsorbed on the whole surface. The photoluminescence properties of the obtained ZnO hexagons were also investigated at room and low temperature. The ZnO hexagonal disks with lowest defect showed the best optical performance.
ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-014-8780-x