Nanogaps for Sensing
|Periodical||Advances in Science and Technology (Volume 71)|
|Main Theme||12th INTERNATIONAL CERAMICS CONGRESS PART J|
|Edited by||Pietro VINCENZINI, Maurizio FERRARI and Mrityunjay SINGH|
|Citation||Frédéric Favier, 2010, Advances in Science and Technology, 71, 1|
|Online since||October, 2010|
|Keywords||Bottom-up, Chemical Sensing, Hybrid Method, Nano/Mesogap Fabrication, Top-Down|
Modern resistive chemical sensors include discontinuous nano/mesostructures. Sensing performances are then governed by the chemical nature of the nanostructure gap as well as by the sensor design at the nanogap scale. Various top-down, bottom-up and hybrid fabrication routes of discontinuous/nanogaped metal nano and mesostructures have been developed. These structures are assembled/organized on insulating surfaces for integration of resistor based devices for the specific sensing of chemicals in gaseous as well as in liquid media. Hydrogen sensing based on discontinuous/gaped palladium nano/mesostructures is a chosen case-study for the evaluation of various nano/mesogap fabrication methods.