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Surface plasma transmission device, manufacturing method and application

A technology of surface plasmon and transmission devices, which is applied in the direction of waveguide devices, cable/conductor manufacturing, electrical components, etc., can solve the problems that the transmission speed and transmission volume can not meet the requirements, can not transmit electrons at the same time, limitations, etc., to achieve structural Simple, small size, the effect of improving transmission speed and transmission volume

Inactive Publication Date: 2014-07-30
宋明霞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the nanowaveguide in the surface plasmon transmission device can only transmit the surface plasmon, but cannot transmit electrons at the same time, and the transmission speed and transmission volume cannot meet the requirements, so it is limited in practical applications

Method used

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  • Surface plasma transmission device, manufacturing method and application
  • Surface plasma transmission device, manufacturing method and application
  • Surface plasma transmission device, manufacturing method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1 Preparation of silver nanowires

[0029] (1). Add 12ml EG (ethylene glycol) to the three-necked round-bottomed flask, stir magnetically (about 260rpm), heat to 150oC, and then heat to reflux at this temperature for 1h;

[0030] (2). Add 4ml AgNO to the three-necked round bottom flask within 10s 3 ethylene glycol solution (0.2M), then add 4ml of ethylene glycol solution of PVP K30 (22.2 mg / ml, PVP is the abbreviation of polyvinylpyrrolidone) within 5min, react for 1h, observe the white flocculent reactant, to stop the reaction. The longer the reaction time, the longer and thicker the obtained silver nanowires will be.

[0031] (3). In the reaction solution after step (2), add acetone (the volume ratio of the reaction solution to acetone is 1:3), carry out ultrasonic cleaning for 20min, centrifuge at 3000rpm for 20min, take the precipitate, add distilled water or ethanol to resuspend , 3000rpm centrifugation for 20min, repeated twice, and then added ethanol ...

Embodiment 2

[0033] Example 2 Preparation of Surface Plasmon Transport Device

[0034] (1). The silver nanowire ethanol suspension prepared in Example 1 was diluted with ethanol and used for later use.

[0035] (2) Using a field emission scanning electron microscope, the designed mark pattern is etched on one side of the substrate by means of electron beam etching ( figure 2 ). The material of the substrate may be a glass substrate. The method of electron beam etching is as follows: spin coat a layer of resist with a thickness of about 350nm, the material is polymethyl methacrylate (PMMA), and dry at 170 °C; use the focused electron beam to etch the resist on the substrate Expose; sputter a gold conductive film with a thickness of about 20 nm; develop with a mixture of methyl isobutyl ketone and isoacetone (volume ratio of 1:3); deposit a 70 nm gold film by thermal evaporation; finally immerse In acetone, heated to 70°C, the gold film outside the marking pattern was peeled off to obta...

Embodiment 3

[0044] Example 3 Transmission performance of surface plasmon transport devices

[0045] 1. A method of synchronously transporting plasma and electrons

[0046] The surface plasmon transmission device prepared in Example 2 was placed on the sample stage of the leakage radiation microscope, and the silver nanowires and the two gold electrodes (numbered as A and B) connected to the silver nanowires were searched with the help of the microscope. The two probes connected to the voltage are connected to the gold electrodes A and B to form a series loop, so that the current passes through the silver nanowires. The specific process is as Figure 4 shown.

[0047] Above the silver nanowire, focusing the laser to one end of the silver nanowire can successfully excite surface plasmons in the silver nanowire. Depend on Figure 5 (a) Surface plasmons (bright lines on both sides of the nanowire) can be seen propagating in the nanowire connected to the gold electrode, and the bright spo...

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Abstract

The invention provides a surface plasma transmission device, a manufacturing method and an application, and relates to the field of electronic parts and components. The surface plasma transmission device comprises a substrate, a nanometer waveguide and electrodes, wherein the nanometer waveguide and the electrodes are arranged on the substrate, the nanometer waveguide is connected with at least two electrodes, and the endpoints of the nanometer waveguide are exposed out of the electrodes. The manufacturing method of the surface plasma transmission device comprises the steps that a mark is manufactured on one side of the substrate through electron beam lithography; then, a silver nanowire is formed on the side with the mark of the substrate in a sedimentation mode; the silver nanowire is positioned according to the mark, the electrodes are etched on the substrate through electron beam lithography, wherein the silver nanowire is connected with at least two electrodes, and the two endpoints of the silver nanowire are exposed out of the electrodes. The surface plasma transmission device is small in size and capable of transmitting plasma and electrons at the same time, so that the transmission speed and transmission quantity of an existing information transmission device are increased remarkably, and the surface plasma transmission device can be applied to nanometer parts and components. The manufacturing method of the surface plasma transmission device is novel and ingenious.

Description

technical field [0001] The invention relates to the field of electronic components, in particular to a surface plasma transmission device, a preparation method and an application. Background technique [0002] In the era of information expansion, the high speed and high capacity of information processing requires high miniaturization and integration of related functional components. As the current development of electronic components has approached the limit of its transmission speed and transmission volume, it cannot meet the growing demand for information. However, due to the limitation of light diffraction, the emerging photonic circuits cannot be compatible with nano-sized electronic components in size. Surface plasmon is an electromagnetic surface wave whose field strength is the largest at the surface and exponentially decays in the direction perpendicular to the interface. The special properties of surface plasmons make plasmonic circuits considered a promising and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P3/10H01P11/00H01B5/14H01B13/00
Inventor 宋明霞
Owner 宋明霞
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