Hydrogen Gas Sensors Based on Semiconductor Oxide Nanostructures
By Haoshuang Gu, Zhao Wang, Yongming Hu. Italian National Conference on Sensors, 2012
430 citations recorded by the source corpus.
Recently, the hydrogen gas sensing properties of semiconductor oxide (SMO) nanostructures have been widely investigated. In this article, we provide a comprehensive review of the research progress in the last five years concerning hydrogen gas sensors based on SMO thin film and one-dimensional (1D) nanostructures. The hydrogen sensing mechanism of SMO nanostructures and some critical issues are discussed. Doping, noble metal-decoration, heterojunctions and size reduction have been investigated and proved to be effective methods for improving the sensing performance of SMO thin films and 1D nanostructures. The effect on the hydrogen response of SMO thin films and 1D nanostructures of grain boundary and crystal orientation, as well as the sensor architecture, including electrode size and nanojunctions have also been studied. Finally, we also discuss some challenges for the future applications of SMO nanostructured hydrogen sensors.
Subfields: Bioengineering, Electrical and Electronic Engineering, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/47016841f94f6acbdcaf5a9d75ef6a31de425c30
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Electrical and Electronic Engineering
In Materials Chemistry
Citations in the corpus
- Metal-core@metal oxide-shell nanomaterials for gas-sensing applications: a review (2015, background): “However, despite many worthy advantages, metal oxide gas sensors require high operating temperature, typically 150–500 C (Gu et al. 2012; Su et al. 2012).”