Unlock instant, AI-driven research and patent intelligence for your innovation.

Controllable preparation method of Sb monocrystal nanowires in different growth directions

A growth direction, single crystal nanotechnology, applied in the direction of single crystal growth, crystal growth, single crystal growth, etc., can solve the problems of single crystal Sb nanowire arrays that have not been reported, and achieve industrial production, simple equipment, easy-to-handle effects

Inactive Publication Date: 2012-09-26
HEFEI UNIV OF TECH
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many different methods to prepare Sb single substance nanowire arrays in alumina templates, including closed vapor deposition method, cyclic voltammetry and direct current electrodeposition method, etc., but the preparation of single crystal Sb nanowire arrays with controllable growth direction has so far been difficult. did not see the report

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Controllable preparation method of Sb monocrystal nanowires in different growth directions
  • Controllable preparation method of Sb monocrystal nanowires in different growth directions
  • Controllable preparation method of Sb monocrystal nanowires in different growth directions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1. Preparation of porous alumina template: the porous alumina template was prepared in an oxalic acid solution with a molar concentration of 0.3M by the secondary anodic oxidation method, and the oxidation voltage was 40V to obtain an alumina template with a pore diameter of 60nm and a thickness of 45μm; Deposit a layer of 200nm thick Au film on the reverse side of the alumina template by evaporation method as the cathode;

[0033] 2. Prepare the electrolyte: first prepare the electrolyte containing C 6 h 8 o 7 and C 6 h 5 Na 3 o 7 buffered aqueous solution, buffered aqueous solution C 6 h 8 o 7 、C 6 h 5 Na 3 o 7 The concentrations are 2.88g / 150ml and 3.87g / 150ml respectively; SbCl is added to the buffered aqueous solution at a concentration of 0.68g / 150ml 3 , stirred for 1 hour using a magnetic stirrer, and 2 SO 4 Adjust the pH value of the solution to 2.0;

[0034] 3. Deposition device: A computer-controlled dual-electrode deposition device is used. Th...

Embodiment 2

[0045] Steps 1, 3, and 4 are the same as in Example 1;

[0046] Step 2, preparation of electrolyte: first prepare the electrolyte containing C 6 h 8 o 7 and C 6 h 5 Na 3 o 7 buffered aqueous solution, buffered aqueous solution C 6 h 8 o 7 、C 6 h 5 Na 3 o 7 The concentrations are 2.88g / 150ml and 3.87g / 150ml respectively; SbCl is added to the buffered aqueous solution at a concentration of 0.68g / 150ml 3 , using a magnetic stirrer to stir for 1 hour; finally adding sodium lauryl sulfate at a concentration of 0.01g / 150ml, using a magnetic stirrer to stir for 1 hour, and 2 SO 4 Adjust the pH value of the solution to 1.8;

[0047] Step 5. Electrodeposition process: Sb single crystal nanowires are prepared by using a computer-controlled double-electrode deposition device, with a pulse voltage of -3.0V and a pulse time of T on and relaxation time T off Both are 500μs. Using the pretreated porous alumina template as the cathode material and graphite as the anode, afte...

Embodiment 3

[0051] Steps 1, 3, 4, 5, and 6 are the same as in Example 2.

[0052] Step 2, preparation of electrolyte: first prepare the electrolyte containing C 6 h 8 o 7 and C 6 h 5 Na 3 o 7 buffered aqueous solution, buffered aqueous solution C 6 h 8 o 7 、C 6 h 5 Na 3 o 7 The concentrations are 2.88g / 150ml and 3.87g / 150ml respectively; SbCl is added to the buffered aqueous solution at a concentration of 0.68g / 150ml 3 , using a magnetic stirrer to stir for 1 hour; finally adding sodium dodecyl sulfate at a concentration of 0.3g / 150ml, using a magnetic stirrer to stir for 1.3 hours, and 2 SO 4 Adjust the pH of the solution to 1.9.

[0053] Figure 4 It is the XRD diffraction pattern of the Sb nanowire obtained in step 6 of embodiment 3. From Figure 4 (012), (110), (024) diffraction peaks can be seen, and the peak intensity of (012) is much greater than other peaks. This indicates that the Sb nanowires electrodeposited and grown in the porous alumina template by the met...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
lengthaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a controllable preparation method of Sb monocrystal nanowires in different growth directions, which is characterized in that: on an aluminium oxide template with uniform pores, on the basis of electrolytes with different amounts of additives, preparing a hexagonal crystal structure Sb nanowire arrays which respectively grow in the directions of [110] and [012] by using a pulse electrodeposition method, wherein the cell parameters are as follows: a=b=0.4307nm and c=1.127nm; and the additive added to the electrolyte is sodium lauryl sulfate C12H25NaO4S. The method is used for preparing Sb monocrystal nanowire arrays in different growth directions by using the electrodeposition principle under the mild conditions of an open system at room temperature, has the advantages of simple equipment and easy operation, and is suitable for industrial production.

Description

technical field [0001] The invention relates to a simple semiconductor nanometer material and a preparation method thereof, in particular to a method for controllably preparing Sb nanowires with different growth directions by pulse electrodeposition. Background technique [0002] With the advancement of science and technology and the continuous deepening of research on nanomaterials, people are more and more interested in low-dimensional nanomaterials. Especially in recent years, the synthesis and application of nanowires has become one of the hot spots that people pay attention to. The highly ordered nanowire array has novel physical properties, and its preparation has broad application prospects in high-density perpendicular magnetographs, optoelectronic devices, and so on. The alumina template has a highly ordered quasi-one-dimensional nanopore structure, which provides an ideal prerequisite for the confinement growth of ordered nanowire arrays, thereby realizing artifici...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C30B29/02C30B29/62C30B30/02
Inventor 杨友文陈延彪陈祥迎刘飞
Owner HEFEI UNIV OF TECH