Unlock instant, AI-driven research and patent intelligence for your innovation.

Construction method of plasma nano-array for enhancing quantum dot fluorescence

A nano-array, plasma technology, applied in the fields of nanotechnology, nanotechnology, nano-optics for materials and surface science, can solve the problems of complex preparation process and low efficiency, and achieve the effect of enhancing fluorescence intensity

Active Publication Date: 2019-06-04
HENAN UNIVERSITY
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects that the preparation process of the existing metal surface and the fluorescent material spacer layer is relatively complicated and the efficiency is not high, and to provide a simple method for constructing a plasmonic nanoarray for enhancing the fluorescence of quantum dots

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
  • Construction method of plasma nano-array for enhancing quantum dot fluorescence
  • Construction method of plasma nano-array for enhancing quantum dot fluorescence
  • Construction method of plasma nano-array for enhancing quantum dot fluorescence

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 Shown, a kind of construction method that is used to enhance the plasmonic nano-array of quantum dot fluorescence, it comprises the following steps:

[0035] ①Preparation of plasmonic nano-arrays: Si nano-pillar arrays with a period of 500 nm, a square column size of 275 nm×275 nm, and a square column height of 300 nm produced by Danish NIL Technology Company were used as templates, and the IPS substrate (provided by Obducat Company of Sweden) was used as a template. ) to construct an IPS square hole array by nanoimprinting technology, and then use resistive thermal evaporation to deposit a gold film to obtain a plasmonic nanoarray with a sub-wavelength EOT phenomenon, and at the same time obtain a gold nanoarray substrate with a specific SPR peak position.

[0036] The conditions for nanoimprinting are as follows: first, the temperature was raised to 150 °C and kept at normal pressure for 5 s, and then kept at 20 bar for 30 s, and then the temperature ...

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

No PUM Login to View More

Abstract

The invention relates to a construction method of a plasma nano-array for enhancing quantum dot fluorescence, which comprises the following steps: 1) preparation of the plasma nano-array: constructingan IPS substrate through a nano-imprinting technology to obtain an IPS square hole array, and then carrying out resistance thermal evaporation to deposit a gold film to obtain the plasma nano-array;and 2) spin-coating the surface of the plasma nano array, prepared in the step 1), with the quantum dot solution, and naturally airing the solution to obtain the product. The method disclosed by the invention is simple, convenient to operate and stable in structure, and is beneficial to realizing fluorescence enhancement of different metal nano arrays.

Description

technical field [0001] The invention belongs to the technical field of semiconductor quantum dots, and in particular relates to a method for constructing a plasma nano-array for enhancing quantum dot fluorescence. Background technique [0002] The phenomenon of metal-enhanced fluorescence has attracted widespread attention due to its excellent characteristics in the fields of biosensing, optoelectronic devices, and fluorescence imaging. Many researchers have found a variety of methods for fluorescence quenching of fluorescent substances that are in direct contact with metal surfaces due to energy transfer. A method to control the distance between the metal surface and the fluorescent substance, such as using polyelectrolyte to precisely control the distance between the two by layer-by-layer self-assembly, and using the different numbers of base pairs of DNA to realize the random change of the distance between the two, outside the quantum dot An insulating layer such as silic...

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): C09K11/88C09K11/02B82Y20/00B82Y30/00B82Y40/00
Inventor 杜祖亮牛丽红孟凡帅
Owner HENAN UNIVERSITY