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A new type of gas sensor based on the thermovoltaic effect in zinc oxide inhomogeneously doped with mixed-valence impurities |
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| Authors: | I. A. Pronin N. D. Yakushova D. Ts. Dimitrov L. K. Krasteva K. I. Papazova A. A. Karmanov I. A. Averin A. Ts. Georgieva V. A. Moshnikov E. I. Terukov |
| Affiliation: | 1.Penza State University,Penza,Russia;2.State Electrotechnical University (LETI),St. Petersburg,Russia;3.Sv. Kliment Ohridski University of Sofia,Sofia,Bulgaria;4.University of Florida,Gainesville,USA;5.Ioffe Physical Technical Institute,Russian Academy of Sciences,St. Petersburg,Russia |
| Abstract: | We propose a new type of potentiometric gas sensor operating on the basis of the thermovoltaic effect in uniformly heated (without temperature gradients) ZnO/ZnO–Fe sandwich structures obtained by the sol–gel method. It is established that a significant contribution to the gas responsivity of sensors is related to the thickness of the upper doped layer of the structure. |
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