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Multi-head zinc oxide nanorods and preparation method thereof

A technology of zinc oxide nanorods and nanorods, which is applied in the direction of zinc oxide/zinc hydroxide, nanotechnology, nanotechnology, etc., to achieve an effect that is beneficial to performance

Active Publication Date: 2014-12-24
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the successful preparation of multi-headed nanorods with nanohead branches in the same growth direction as the main rod on a transparent conductive substrate has not been reported yet.

Method used

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  • Multi-head zinc oxide nanorods and preparation method thereof

Examples

Experimental program
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Embodiment 1

[0015] Embodiment one: Electrochemical deposition process at 0.01 mol / L Zn(NO 3 ) 2 It was carried out in aqueous solution, the power source used was a two-electrode system, the voltage was constant at 2 V, the temperature was constant at 75 °C, and the deposition time was 30 min. The ITO glass substrate is connected to the cathode, and the anode is made of pure platinum, and the two electrodes are kept parallel with a distance of 2 cm. After the deposition was completed, all samples were washed repeatedly with deionized water to remove residual solution ions on the samples. Afterwards, the samples were placed in an air atmosphere heat treatment furnace for annealing at 150 °C. The electrodeposited ZnO nanorod array sample was placed in an ion sputtering device, the sputtering source was a pure ZnO sheet, the sputtering current was adjusted to 50 mA, and the sputtering was performed for 90 s. Then, the sample after sputtering the seed layer was placed in zinc nitrate with...

Embodiment 2

[0017] Embodiment two: Electrochemical deposition process at 0.01 mol / L Zn(NO 3 ) 2 It was carried out in aqueous solution, the power supply used was a two-electrode system, the voltage was constant at 2 V, the temperature was constant at 75 °C, and the deposition time was 40 min. The ITO glass substrate is connected to the cathode, and the anode is made of pure platinum, and the two electrodes are kept parallel with a distance of 2 cm. After the deposition was completed, all samples were washed repeatedly with deionized water to remove residual solution ions on the samples. Afterwards, the samples were placed in an air atmosphere heat treatment furnace for annealing at 150 °C. The electrodeposited ZnO nanorod array sample was placed in an ion sputtering device, the sputtering source was a pure ZnO sheet, the sputtering current was adjusted to 100 mA, and the sputtering was performed for 60 s. Then, the sample after sputtering the seed layer was placed in zinc nitrate wit...

Embodiment 3

[0019] Embodiment three: Electrochemical deposition process at 0.01 mol / L Zn(NO 3 ) 2 It was carried out in aqueous solution, the power supply used was a two-electrode system, the voltage was constant at 2 V, the temperature was constant at 95 °C, and the deposition time was 60 min. The FTO glass substrate is connected to the cathode, and the anode is made of pure platinum, and the two electrodes are kept parallel with a distance of 2 cm. After the deposition was completed, all samples were washed repeatedly with deionized water to remove residual solution ions on the samples. Afterwards, the samples were placed in an air atmosphere heat treatment furnace for annealing at 150 °C. The electrodeposited ZnO nanorod array sample was placed in an ion sputtering device, the sputtering source was a pure ZnO sheet, the sputtering current was adjusted to 150 mA, and the sputtering was performed for 40 s. Then, the sample after sputtering the seed layer was put into zinc nitrate wi...

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Abstract

The invention provides multi-head zinc oxide nanorods and a preparation method thereof. Each nanorod comprises a nano-trunk rod and nano-head branches which are arranged in the direction being consistent with the growth direction of the trunk rod, and the diameter of the nano-trunk rod is 500-1000nm; the number of the nano-head branches is 5-25; and the height of a nano-rod array is 2500-4000nm. A ZnO nano-head nanorod array prepared by the preparation method provided by the invention is a novel nano-array structure. Compared with a single-head nanorod array, the multi-head nanorod array has larger specific surface area and is more conductive to penetration of organic polymers in preparation of organic solar cells and organic LED (light-emitting diode) light-emitting devices.

Description

technical field [0001] The invention relates to a zinc oxide nanorod and a preparation method thereof, in particular to a multi-headed zinc oxide nanorod and a preparation method thereof. Background technique [0002] Fabrication of large-scale upright ZnO nanorod structures on transparent conductive glass has attracted great attention in nanophotocatalytic devices, optoelectronic devices, and photovoltaic devices. At present, the ZnO nanostructures that have been prepared on transparent conductive glass are mainly nanorod arrays, nanotube arrays and nanotree arrays. Nanorods and nanotube arrays have smaller specific surface area than multilevel nanoarray structures, while the nanobranches and trunks of nanotree arrays are perpendicular to each other. This structure is not conducive to the synthesis of polymers during the assembly process of organic-inorganic hybrid nanodevices. penetration. The structure in which the branches of the nanohead are parallel to the main rod n...

Claims

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Application Information

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IPC IPC(8): C01G9/02B82Y40/00B82Y30/00
Inventor 任鑫曹娇袁帅施利毅
Owner SHANGHAI UNIV
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