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

Light current spectrum high throughput testing device of materials under atmosphere environment

A technology of photocurrent spectroscopy and atmospheric environment, which is applied in the direction of measuring devices, measuring electrical variables, material excitation analysis, etc., to achieve the effect of multiple controllable environments and high degree of automation

Active Publication Date: 2012-09-19
HUAZHONG UNIV OF SCI & TECH
View PDF6 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The traditional material testing method is single-point testing, that is, only one sample can be tested during the testing process

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
  • Light current spectrum high throughput testing device of materials under atmosphere environment
  • Light current spectrum high throughput testing device of materials under atmosphere environment
  • Light current spectrum high throughput testing device of materials under atmosphere environment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The present invention is described in more detail below by means of examples, but the following examples are only illustrative, and the protection scope of the present invention is not limited by these examples.

[0018] Such as figure 1 As shown, the test device provided by the present invention includes a light source assembly 1 , an environment control assembly 2 , a test chamber 3 , a signal acquisition module 4 and a control unit 5 .

[0019] The light source assembly 1 can provide monochromatic light with a continuously changing wavelength of 200-1100 nm. The monochromatic light wavelength step minimum value is between 0.5-2nm, and the half-maximum width of the monochromatic light peak shape is less than 5nm. The step speed of monochromatic light is between 0.1s / nm and 10s / nm. In particular, in the test, the wavelength of monochromatic light needs to increase and decrease the change.

[0020] The light in the light source assembly 1 passes into the test cavity ...

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 belongs to a material performance analyzing and testing technology which can be used for testing the light current performance of a plurality of materials in an atmosphere and provides evidences for estimating the air-sensitive performance of the materials under optical excitation and evaluating a photoelectric catalysis performance of the materials. The method is composed of a light source part, an environment control assembly, a testing chamber, a signal collecting part and a control part. The method can be used for testing the light current change in a specific environment and in a full light spectrum range, and provides evidences for determining the best responding range of photoelectric responses of the materials, material intrinsic characteristics, defect energy grades and content. The method disclosed by the invention has the characteristics of controllable environments, high automation degree of a system and a plurality of testing samples in one time.

Description

technical field [0001] The invention belongs to the material performance analysis and testing technology, which can test the photocurrent performance of various materials in the atmosphere, and provides a basis for evaluating the gas-sensing performance of the material under light excitation and the photoelectric catalytic performance of the material, and specifically relates to an atmosphere environment Material photocurrent spectroscopy high-throughput testing device. Background technique [0002] Metal oxide semiconductor materials have good photoresponse performance, so they are widely used in the fields of photocatalytic materials, photoconductive devices, photoexcited gas sensors, photoelectric energy storage materials, and solar cells. In these applications, when the photons emitted by the light source are absorbed by the metal oxide semiconductor material, electrons and holes are generated in the conduction band and forbidden band of the material. Photogenerated ele...

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): G01N21/63G01R19/00
Inventor 李华曜谢长生杨其成张顺平
Owner HUAZHONG UNIV OF SCI & TECH