Semiconductor Oxide Gas Sensors
Name of the Curricular Unit: Semiconductor Oxide Gas Sensors
Lecturer: Pedro Faia (email@example.com)
Characterisation of semiconducting oxide gas sensors. Oxides surface: basic surface reactions. Conduction mechanisms and electrical response of the sensors. Semiconducting oxides: electrical response due to semiconducting material type. Surface oxygen relation with adsorption and desorption process. Oxidizing and reducing gases. Sensor type, function of the sensing principle. Measuring electrodes: adhesion and geometry influence, in the sensors electrical response. Catalysts.
The evaluation of the course is the sum of two components: 1) 50% of the final mark consists in a seminar work, preparatory of the experimental work which will follow; 2) the remaining 50% will be the experimental work itself. At the end, the full work, will be evaluated after public presentation and discussion.