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

Gas sensor based on ultrathin two-dimensional semiconductor material coated quartz tuning fork

A two-dimensional semiconductor and gas sensor technology, applied in the field of laser spectroscopy, can solve the problems of responsivity and sensitivity to be improved, and achieve the effect of good flexibility, low chemical stability and simple structure

Active Publication Date: 2020-10-02
ANHUI UNIVERSITY
View PDF12 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Therefore, a new type of detector based on quartz tuning fork (QCTF) was proposed to replace the above-mentioned traditional detector, and it was applied to absorption spectroscopy gas sensing technology without cooling, but the responsivity and sensitivity still need to be improved However

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
  • Gas sensor based on ultrathin two-dimensional semiconductor material coated quartz tuning fork
  • Gas sensor based on ultrathin two-dimensional semiconductor material coated quartz tuning fork

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1. This embodiment takes Fe-CoO thin film coating as an example.

[0028] Such as figure 1 As shown, a gas sensor based on ultra-thin two-dimensional semiconductor material coated quartz tuning fork, including tunable laser 1, fiber collimator 2, gas cell 3, CaF 2 Lens 4, quartz tuning fork 5, low-noise preamplifier 6, data acquisition system 7, computer 8, dual-channel DAQ9; the laser emitting optical path of the tunable laser 1 is sequentially provided with a fiber collimator 2, a gas cell 3, and a gas cell The two ends of the gas cell 3 are respectively provided with a light entrance and a light exit, and the side of the light exit of the gas cell 3 is sequentially provided with CaF 2 The lens 4, the quartz tuning fork 5, the quartz tuning fork 5 is electrically connected to the low-noise preamplifier 6, the signal output end of the low-noise preamplifier 6 is electrically connected to the signal input end of the data acquisition system 7, and the signal of...

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
Diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses an absorption spectrum gas sensor based on an ultrathin two-dimensional semiconductor coated quartz tuning fork, which is characterized by comprising a tunable laser (1), an optical fiber collimator (2), a gas pool (3), a CaF2 lens (4), a quartz tuning fork (5), a low-noise preamplifier (6), a data acquisition system (7), a computer (8) and a dual-channel DAQ (9). The wavelength modulation spectrum (WMS) gas sensor provided by the invention is low in cost and simple in structure, methane (CH4) gas is adopted as target gas, and the feasibility of a two-dimensional iron-doped cobalt oxide coating QCTF for photoelectric detection is verified. The gas sensor has the advantages of being good in flexibility and chemical stability and low in cost.

Description

technical field [0001] The invention relates to the technical field of laser spectroscopy, in particular to a gas sensor based on an ultra-thin two-dimensional semiconductor material coated with a quartz tuning fork. Background technique [0002] Current GaN, Silicon, InGaAs, PbS, InAsSb, HgCdTe, and quantum well infrared (IR) photodetectors have good performance, but some of them are expensive and require low temperature operation, making it difficult to directly integrate into various optoelectronic platforms. In addition, mid-infrared MCT detectors are usually limited to a narrow wavelength range limited by the tunable direct bandgap. Therefore, there is still a need to investigate novel photodetectors for integration and efficient detection. [0003] Therefore, a new type of detector based on quartz tuning fork (QCTF) was proposed to replace the above-mentioned traditional detector, and it was applied to absorption spectroscopy gas sensing technology without cooling, bu...

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): G01N21/39G01N21/01G01N21/03G01J3/28
CPCG01N21/39G01N21/01G01N21/03G01J3/28G01N2021/399G01N2021/0112
Inventor 周胜蒋童童孙晓园李劲松俞本立
Owner ANHUI UNIVERSITY
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com