Aare Floren

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Pulsed laser deposition was applied to chromia-titania solid solutions (CTO) with the aim to study electrical and gas sensing properties on (ultra)thin films of this material. The films with different compositions (5% to 33.3% of Ti from total cationic amount) were characterized by XRD, XRR, AFM, and EPMA. The electrical conductivity of the films was(More)
A model is presented for describing the conductivity dependencies of p-type thin film sensors from oxygen and CO pressures. The model basis on the kinetic equations, composed for the processes of dissociative ionization of O<inf>2</inf> and oxidation of CO on the surface, and taking into the account the charge balance between the adsorbed species and the(More)
Responses of enzymatic bio-optrodes in flow regime were studied and an original model was proposed with the aim of establishing a reliable method for a quick determination of biosensor signal parameters, applicable for biosensor calibration. A dual-optrode glucose biosensor, comprising of a glucose bio-optrode and a reference oxygen optrode, both placed(More)
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