Double-self-assembly molecular layer molecular junction device and preparation method and application thereof

A molecular layer and molecular junction technology, applied in the field of double self-assembled molecular layer molecular junction devices and their preparation, can solve the problems of restricting the development of molecular electronics, inability to realize variable temperature research, difficult construction of top electrodes, etc. Temperature stability, easy transfer effect

Inactive Publication Date: 2020-09-29
TIANJIN UNIV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, all the dual self-assembled structure devices reported so far have the problems of difficult construction of the top electrode, poor repeatability, and poor stability, and without exception, it i

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
  • Double-self-assembly molecular layer molecular junction device and preparation method and application thereof
  • Double-self-assembly molecular layer molecular junction device and preparation method and application thereof
  • Double-self-assembly molecular layer molecular junction device and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] A method for preparing a double self-assembled molecular layer molecular junction device, comprising the following steps:

[0073] 1) Put the bottom electrode into UV-O 3 Irradiate with ultraviolet light in the cleaning machine for 5min, dry, immerse in 10mL of 6-ferrocenehexanethiol (FHT, 6-ferrocenehexanethiol as the first molecule to be tested) in ethanol solution for 12h, take it out and rinse with ethanol , dry, and form the 6-ferrocenyl thiol layer on the bottom electrode, wherein the concentration of 6-ferrocene thiol in the ethanol solution of 6-ferrocene thiol is 1mmol / L ;

[0074] Immerse the gold nanowire flakes in 10mL of 1-undecylthiol (C11) ethanol solution for 12h (1-undecylthiol as the second molecule to be tested), take it out and wash it with ethanol for coating The 1-undecyl mercaptan layer is then put into the electrophoresis solution and ultrasonicated for 10 minutes to obtain a suspended nanowire solution containing gold nanowires, wherein the el...

Embodiment 2

[0092] A method for preparing a double self-assembled molecular layer molecular junction device, comprising the following steps:

[0093] 1) Put the bottom electrode into UV-O 3 Irradiate with ultraviolet light for 10min in the cleaning machine, dry, immerse in 10mL of 6-ferrocenehexanethiol (FHT, 6-ferrocenehexanethiol as the first molecule to be tested) in ethanol solution for 15h, take it out and rinse with ethanol , dry, and form the 6-ferrocenyl thiol layer on the bottom electrode, wherein the concentration of 6-ferrocene thiol in the ethanol solution of 6-ferrocene thiol is 0.5mmol / L;

[0094] Immerse the gold nanowire flakes in 10mL of 1-undecylthiol (C11) ethanol solution for 15h (1-undecylthiol as the second molecule to be tested), take it out and wash it with ethanol for coating The 1-undecyl mercaptan layer is then put into the electrophoresis solution and ultrasonicated for 15 minutes to obtain a suspended nanowire solution containing gold nanowires, wherein the...

Embodiment 3

[0110] A method for preparing a double self-assembled molecular layer molecular junction device, comprising the following steps:

[0111] 1) Put the bottom electrode into UV-O 3 Irradiate with ultraviolet light in the washing machine for 8min, dry, immerse in 10mL of 6-ferrocenehexanethiol (FHT, 6-ferrocenehexanethiol as the first molecule to be tested) in ethanol solution for 24h, take it out and rinse with ethanol , dry, and form the 6-ferrocenyl thiol layer on the bottom electrode, wherein the concentration of 6-ferrocene thiol in the ethanol solution of 6-ferrocene thiol is 5mmol / L ;

[0112] Immerse the gold nanowire flakes in 10mL of 1-undecylthiol (C11) ethanol solution for 24h (1-undecylthiol as the second molecule to be tested), rinse with ethanol after taking it out, and use it for coating The 1-undecyl mercaptan layer is then put into the electrophoretic solution and ultrasonicated for 20 minutes to obtain a suspended nanowire solution containing gold nanowires, w...

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
Widthaaaaaaaaaa
Concentrationaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to view more

Abstract

The invention discloses a double-self-assembly molecular layer molecular junction device and a preparation method and application thereof. The double-self-assembly molecular layer molecular junction device comprises a bottom electrode, a first to-be-detected molecular layer and gold nanowires. The bottom electrode comprises a silicon wafer, a silicon dioxide layer attached to the silicon wafer, amain skeleton, a peripheral frame and floating island electrodes, wherein the main skeleton and the floating island electrodes are located in the peripheral frame, protruding tips are formed on the main skeleton, the number of the tips is the same as that of the floating island electrodes, and each tip is opposite to one floating island electrode; the main skeleton, the peripheral frame and the floating island electrode have the same composition; the gold layer is connected with a first to-be-detected molecular layer; a gold nanowire is connected between each tip and the corresponding floatingisland electrode opposite to the tip; and the gold nanowire is coated with a second to-be-detected molecular layer. The upper electrode and the lower electrode are both made of solid metal gold, which belongs to solid devices, and are high in stability, so that the problem of electric leakage caused by liquid metal or liquid environment is avoided, and it is ensured that the test can be carried out in various environments.

Description

technical field [0001] The invention belongs to the technical field of organic electronics, and specifically relates to a double self-assembled molecular layer molecular junction device and its preparation method and application. Background technique [0002] Molecular electronics studies the transport mechanism of charges in molecules by constructing "electrode-molecule-electrode" structural devices. It is used to reveal the electron transfer process at the microscopic scale, which is of great significance in the study of chemical reaction mechanisms and charge transfer in life systems. Due to the limitations of microfabrication technology and microscale manipulation technology, traditional molecular electronic devices are based on single-layer self-assembled molecular layer devices. When studying the charge transport process of complex systems, it is limited by the difficulty of molecular synthesis and cannot be systematically In-depth study of charge transport mechanisms....

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
IPC IPC(8): H01L51/00G01R31/00B82Y40/00
CPCB82Y40/00G01R31/00H10K71/60H10K30/671H10K2102/00
Inventor 胡文平韩宾于曦
Owner TIANJIN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap