Batch preparation device and method of scanning tunneling microscope (STM) probes

A preparation device and probe technology, which is applied in the batch preparation device and field of STM probes, can solve the problems of time-consuming and labor-consuming, single STM probe preparation, etc., and achieve the effect of convenient use

Pending Publication Date: 2020-02-21
NANJING VOCATIONAL UNIV OF IND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the existing STM probes mentioned in the background technology are all single-piece preparation, time-consuming and labor-intensive, and mainly rely on the experience of the operator, the embodiment of the present application provides a batch preparation device for STM probes, Enables batch preparation

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  • Batch preparation device and method of scanning tunneling microscope (STM) probes
  • Batch preparation device and method of scanning tunneling microscope (STM) probes
  • Batch preparation device and method of scanning tunneling microscope (STM) probes

Examples

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Effect test

Embodiment 1

[0036] refer to Figure 1-7 , a batch preparation device for STM probes provided by an embodiment of the present invention, including a mounting base 1, a metal rod assembly 2, a metal ring assembly 3, and a liquid replenishment assembly 4, and the metal rod assembly 2, the metal ring assembly 3, and the liquid replenishment assembly 4 are all Set on the installation base plate 1. The distance between the metal ring assembly 3 and the liquid replenishment assembly 4 relative to the metal rod assembly 2 is adjustable, so that after the probe is prepared by electrochemical corrosion at the lower end of the metal rod fixed in the metal rod assembly 2, the metal ring assembly 3 and the liquid replenishment assembly can be placed Component 4 approaches the metal rod component 2, and continues to prepare probes through electrochemical corrosion on the metal rod, so that multiple probes can be prepared for each metal rod by only adjusting the metal ring component 3 and the liquid rep...

Embodiment 2

[0049] Basically the same as embodiment 1, the difference is:

[0050] This embodiment also provides a batch preparation method for STM probes, including:

[0051] Prepare 32 metal rods 5. In this embodiment, the size of the metal rods is 0.3 mm in diameter and 100 mm in length. Use sandpaper to remove oxides on the surface of the metal rods, and use acetone to ultrasonically clean the metal rods for 20 minutes. The metal rods are treated before the reaction , to prevent the oxide on the surface of the metal rod from affecting the electrochemical corrosion.

[0052] Put the metal rings 32 in the metal ring assembly 3 into the electrolyte as a whole, so that a liquid film is formed in all the metal rings 32;

[0053] Insert the metal ring slider 34 in the metal ring assembly 2 into the first chute 331, slide the metal ring slider 34 along the first chute 331 to the first positioning hole 332 located at the bottom, adopt the metal ring assembly Fasteners 36 secure the ferrule ...

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Abstract

The invention discloses a batch preparation device of scanning tunneling microscope (STM) probes. The batch preparation device of the STM probes comprises a mounting base plate, a metal rod assembly and a metal ring assembly, and the metal rod assembly and the metal ring assembly are both arranged on the mounting base plate. The metal rod assembly includes a chuck fixing member and a plurality ofmetal rod chucks, the chuck fixing member is fixedly connected with the mounting base plate, and one ends of the metal rod chucks are fixed to the chuck fixing member. Each metal rod chuck is internally provided with a metal rod insertion hole, and a metal rod which can be used as an anode can be inserted and fixed into each metal rod insertion hole. The metal ring assembly includes a metal ring fixing member and a plurality of metal rings which can be used as cathodes, and the metal rings are fixedly connected with the metal ring fixing member. The number of the metal rings is equal to the number of the metal rod chucks, and the metal rod chucks and the metal rings are arranged relative to each other in a one-to-one mode. The metal rods inserted into the metal rod chucks can penetrate through the corresponding metal rings, and the metal ring fixing member is fixedly connected with the mounting base plate. The probes can be prepared in batches, time is shortened, effort is saved, and installing and using are convenient.

Description

technical field [0001] The invention belongs to the field of microfabrication, and in particular relates to a batch preparation device and a preparation method of STM probes. Background technique [0002] A scanning tunneling microscope (STM for short) is an instrument that uses the tunneling effect of quantum theory to detect the surface structure of substances. The main principle is to measure the surface structure of a substance through the interaction between the probe tip and the surface atoms of the substance. Its discovery enables scientists to observe and manipulate individual atoms, and its powerful functions make it of great significance and broad application prospects in surface science, material science, life science and other fields. Currently, there are various methods for preparing STM probes, such as electrochemical etching, mechanical cutting, etc. Although there are many methods, they are all prepared by a single root, which is time-consuming and labor-in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01Q60/16C25F3/02C25F7/00
CPCC25F3/02C25F7/00G01Q60/16
Inventor 吴修娟费圣
Owner NANJING VOCATIONAL UNIV OF IND TECH
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