A process for manufacturing silver wires at the nanometer level for applications in Raman signal amplification (SERS) substrates.

Abstract

A process for manufacturing silver wire at the nanometer level for applications in Raman signal amplification substrates. (SERS) which consists of a process of preparing a silver film on a silicon substrate by cleaning. A silicon substrate is used, followed by a titanium coating before the silver film is applied. This is part of the synthesis process. A solid-state electrolyte of silver sulfide introduces a silver film onto a silicon substrate obtained from the following process: Prepare a silver film on a silicon substrate and immerse it in a 2-10 mmol sodium sulfide solution. For 6-24 hours, a redox reaction occurs to form a solid electrolyte plate of beta-sil. The transulfide ((formula)-Ag2S) coating is applied as a silver film on a silicon substrate, followed by a wire fabrication process. Silver at the nanometer level was detected using a prepared solid electrolyte plate of beta-silver sulfide ((formula)-Ag2S). From the synthesis process of a solid-state electrolyte of silver sulfide, an electron beam is then shone into the microscope. Scanning electron microscopy is used to create nanometer-sized silver wires on an electrolytic plate. Solid beda silver sulfide ((formula)-Ag2S)

Claims

1. The process of fabricating nanometer-scale silver wires for application in Raman Signal Extension Systems (SERS) consists of:

1. Preparation of a silver film on a silicon substrate by cleaning the silicon substrate and coating it with titanium before applying the unique silver film.

2. Synthesis of a solid-state electrolyte of silver sulfide. The silver film on the silicon substrate obtained from the preparation step is immersed in a 2-10 mmol sodium sulfide solution for 6-24 hours, inducing a redox reaction to create a solid-state electrolyte of beta-silver sulfide ((formula)-Ag2S) coated on the silver film on the silicon substrate.

3. Fabrication of nanometer-scale silver wires. The solid-state electrolyte of beta-silver sulfide ((formula)-Ag2S) prepared in the synthesis step is electron-beamed under a scanning electron microscope to create nanometer-scale silver wires on the solid-state electrolyte of beta-silver sulfide ((formula)-Ag2S).The fabrication of nanometer-scale silver wires for surface Raman signal enhancement (SERS) applications under Patent 1, where the preparation of the silver film on a silicon substrate involves coating the silver film using the AREF magnetron sputtering technique.

3. Nanometer-scale silver wires prepared by the fabrication of nanometer-scale silver wires for surface Raman signal enhancement (SERS) applications under Patent 1 or 2, where these nanometer-scale silver wires are mounted on a solid electrolyte coating of silver sulfide as the top layer of a silicon substrate to enhance the Raman signal or Surface Enhanced Raman Spectroscopy (SERS).