Identifying the Issue
- Designing gas sensors functioning at room temperature with ultra-fast response and fast recovery is a great challenge.
- Realizing the sensing material which meets the high standard sensing parameters
Objective of the Research
- ZnO/Carbon-black heterostructures are studied for the detection of Volatile Organic Compounds at room temperature
Who should read this?
- Researchers and scientists in materials science and sensor technology
Solution
Engineering the metal oxide semiconductors’ electronic properties and microstructure to meet the desired properties
Key Features and Benefits
- ZnO/C65 heterostructures are reported for the detection of volatile organic compounds at room temperature
- C65 carbonblack incorporation has modified the microstructural as well as orientational growth of the ZnO particles, which has resulted in enhanced gas sensing characteristics compared to the pristine ZnO
- ZnO/C65 nano heterostructures exhibited p-type like response to ethanol sensing, besides enhanced sensitivity, ultra-fast response, and recovery
Impact
- ZnO/C65 heterostructures samples have exhibited ultrafast ethanol sensing response and recovery (2 s) at certain C65 carbon contents
- Change in the sensing mechanism from n-to p-type for ZnO/C65 heterostructures at room temperature
- The unique microstructural features of ZnO nanoparticles and semiconducting ZnO/C65 heterostructure mechanism enable fast ethanol sensing
- ZnO/C65 heterostructure-based ethanol gas sensors demonstrate reliable operation at room temperature, making them suitable for various industrial and commercial applications
Team
Paramesh Gadige *, Upesh kumar, Tanay saha, Sanjay Prasad
Title of paper: “ZnO/carbon black nano‑heterostructures for ultrafast ethanol detection with n to p‑type switching at room temperature“
Read Paper Here: https://doi.org/10.1007/s00339-025-08419-9
