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Surface strengthened substrate preparation and performance calibration method

A surface enhancement and substrate technology, applied in the field of surface enhancement substrate preparation and calibration performance, can solve the problems of high cost, poor repeatability, complicated preparation process, etc., and achieve the effect of low cost, high repeatability and high sensitivity

Inactive Publication Date: 2017-08-04
徐州赛恩斯源新材料科技有限公司
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Problems solved by technology

At present, some special methods for preparing nanomaterials such as noble metal sol-gel method, nanosphere arrangement method, electrochemical corrosion method, electron beam lithography method, template method and dynamic shadow deposition technology can obtain SERS activity that satisfies the conditions. Substrate, which generally has defects such as complicated preparation process, high cost, and poor repeatability

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  • Surface strengthened substrate preparation and performance calibration method
  • Surface strengthened substrate preparation and performance calibration method
  • Surface strengthened substrate preparation and performance calibration method

Examples

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Embodiment 1

[0021] Example 1: This implementation provides a method for preparing and calibrating performance of a surface-enhanced substrate. Through dynamic shadow deposition technology, electron beam evaporation thin film deposition system is used to grow uniformly on a clean glass sheet under high vacuum conditions. An array of silver nanorods arranged obliquely, specifically comprising the following steps:

[0022] (1) Cut the glass piece into a square with a size of 1×1 cm2, soak it in the mixed washing solution and boil for 20 minutes, take it out, rinse it with secondary deionized water three times, dry it with nitrogen, and put it into the deposition chamber;

[0023] (2) Confirm whether the volume of the evaporation material silver and titanium in the crucible accounts for 70% of the crucible volume, confirm whether the life of the film thickness sensor is greater than 30%, check whether the cooling water circulation of the whole machine is normal, and whether the sample stage ro...

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Abstract

The invention discloses a method for preparing and calibrating performance of a surface-enhanced substrate. By using a dynamic shadow deposition technology and an electron beam evaporation film deposition system, silver nanorods uniformly arranged obliquely are grown on a clean glass sheet under high vacuum conditions. Array, the surface-enhanced substrate prepared by this method has a special silver nanorod array structure, which makes it have high sensitivity and superior stability. The surface-enhanced substrate produced by this method has high repeatability, and the same batch of different surface-enhanced substrates The SERS intensity varies by less than 10%, and the SERS intensity of different batches of substrates varies by less than 15%. Compared with other nanostructure preparation technologies, it has strong controllability, low cost, high repeatability, and is suitable for large-scale production.

Description

technical field [0001] The invention relates to a method for preparing and calibrating performance of a surface enhanced substrate. Background technique [0002] For many years, people have used different methods to adjust the size and gap of nanostructures to obtain ideal SERS active substrates. At present, some special methods for preparing nanomaterials such as noble metal sol-gel method, nanosphere arrangement method, electrochemical corrosion method, electron beam lithography method, template method and dynamic shadow deposition technology can obtain SERS activity that satisfies the conditions. Substrates generally have defects such as complicated preparation process, high cost, and poor repeatability. Contents of the invention [0003] In order to solve the above problems, the present invention provides a method for preparing and calibrating surface-enhanced substrates. The surface-enhanced substrate prepared by this method has a special silver nanorod array structu...

Claims

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Application Information

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IPC IPC(8): C23C14/18C23C14/16C23C14/30G01N21/65B82Y30/00B82Y40/00
CPCC23C14/18B82Y30/00B82Y40/00C23C14/16C23C14/30G01N21/658
Inventor 张新民万巧云禚昌岩
Owner 徐州赛恩斯源新材料科技有限公司
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