Courbat, J.Linder, M.Dottori, M.Briand, D.Woellenstein, J.de Rooij, N.F.2010-02-032010-02-032010-02-03201010.1109/MEMSYS.2010.5442348https://infoscience.epfl.ch/handle/20.500.14299/46390WOS:000278416400219A polymeric-based colorimetric gas sensor with its associated electronics targeting ammonia detectionat low-cost and low-power is presented. The gas sensitive layer was inkjet printed on a plastic foil used as an optical waveguide. The planarconfiguration of the sensor makes it compatible with large scale fabrication techniques, such as rollto-roll processes. Its power consumption and noise level were measured. The sensor exhibited a good sensitivity to ammonia with a theoretical limit of detection of 104 ppb in a constant operation mode. The power consumption was reduced to the submW range when operating in pulsed mode. It foresees applications in the field of wirelesssystems, for environmental and safety monitoring.text::conference output::conference proceedings::conference paper