Chapter 2
Gas Phase NanoficationA Strategy to Impart Fast Response in Sensors
Abstract
Sensing mechanism is predominantly surface-dominated. Benign surface features in terms of small grain size, large surface area, high aspect ratio, and open and connected porosity are required to realize a successful sensor material. Such morphological artefacts could be incorporated in a number of promising semiconducting oxide-based gas sensors by employing a technique based on the thermodynamics of metal/metal oxide coexistence. By modulating the equilibrium oxygen partial pressure across the metal/metal oxide proximity line, renewed formulation and growth of an oxide ...
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