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

Copper oxide nanosensor

A technology of sensors and sensor devices, applied in copper oxide/copper hydroxide, nanotechnology, nanotechnology, etc., capable of solving problems such as complex structures

Inactive Publication Date: 2020-10-30
OKINAWA INST OF SCI & TECH SCHOOL
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The inert gas condensation method of nanoparticle growth has been shown to yield complex and finely tuned structures due to the fast kinetics and non-equilibrium process it requires

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
  • Copper oxide nanosensor
  • Copper oxide nanosensor
  • Copper oxide nanosensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] Embodiments herein include, but are not limited to, methods of developing copper oxide nanowire-based acetone sensors capable of operating at temperatures such as 250°C and 300°C, and also having the ability to detect acetone concentrations as low as 50 ppb. Decorating the nanowires with ruthenium nanoparticles could lower the operating temperature down to 200°C, while significantly improving the signal during sensor operation at a temperature of 250°C versus acetone. The devices discussed herein are capable of detecting eg 10 ppb and 25 ppb acetone respectively (with the ability to respond further at lower concentrations).

[0021] For example and illustration purposes only, the example of sensing acetone will be used. However, the various embodiments of the sensors disclosed herein should not be considered limited to acetone only.

[0022] Figures 1A to 1F Steps in the fabrication process of CuO nanowire sensor 100 are shown. Such as Figure 1A As shown, the senso...

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
band gapaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

A system and method of nanoparticle deposition for achieving an acetone sensitive response based on ruthenium decorated CuO nanowires at temperatures of 200 DEG C and 250 DEG C is disclosed. This method is useful for building sensors. The method used to build the sensor is easily integrable into silicon technology broadly, and into a CMOX compatible device specifically. Additionally, it is expected that this method of nanoparticle deposition can be transferred to other MOx nanowire sensors, such as but not limited to zinc oxide nanowire.

Description

Background technique [0001] Acetone detection is an issue of great interest in the field of gas sensor research. Acetone, a very useful solvent in many scientific fields, produces fumes that are very harmful to human health. Additionally, the detection of acetone at sub-ppm levels has become an area of ​​interest in the biomedical field, as new studies have shown acetone to be a possible biomarker for a variety of diseases, including ketosis, heart failure, and diabetes. Therefore, an acetone sensor operable in this range is very promising as a means to provide non-invasive diagnosis of health problems. [0002] Metal oxide (MOx) based gas sensors are a class of semiconductor sensors that measure gas concentration by resistance measurement. These sensors come in a variety of geometries, including metal-organic frameworks, thin films, microspheres, nanospheres, mesoporous nanoparticle films, nanosheets, nanoflowers, nanowires, and other nanostructures. Nanowires are of parti...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/12
CPCG01N27/12B82Y30/00B82Y15/00B82Y40/00C01G3/02C01P2004/03C01P2004/16C23C28/322G01N27/125
Inventor M·I·索万A·J·博尔科维奇J·威尔尼尔斯S·施泰因豪尔Z·兹阿迪
Owner OKINAWA INST OF SCI & TECH SCHOOL