Highly Sensitive Gas Sensor In High Humidity Environments.pdf

- Patent Title: Gas Sensor Based on Carbon Nanomaterials for Enhanced Sensitivity in High Humidity Environments
- Patent Number: 10-1817334
- Filing Date: September 1, 2016
- Publication Date: January 10, 2018
- Inventors: Taeseong Chan (Yonsei University), Youngmo Jeong (Private Address), Seok (Yonsei University), and others
- Assignees: Yonsei University and Korea Institute of Science and Technology
- Abstract:
The invention relates to a gas sensor based on carbon nanomaterials that exhibits enhanced sensitivity in high humidity environments. The sensor comprises a first sensing unit made of carbon nanomaterials, electrodes, and a second sensing unit with hydrophilic functional groups. In high humidity conditions, the second sensing unit forms a hydronium ion-based conduction path, enhancing the sensor's sensitivity and detection limit.
- Claims:
The patent includes 9 claims, with the main claim describing a gas sensor comprising:
- a substrate,
- a first sensing unit on the substrate, made of carbon nanomaterials (graphene, oxidized graphene, carbon nanotubes, etc.),
- electrodes connected to the first sensing unit, and
- a second sensing unit on the first sensing unit, with hydrophilic functional groups that form a hydronium ion-based conduction path in high humidity environments.
- Background Art:
The patent discusses the advantages of graphene and other carbon nanomaterials for gas sensing applications and the challenges of maintaining sensitivity in high humidity environments. It also mentions related art, including previous research on graphene-based biosensors and DNA-based logic gates.