A new type of gas sensor based on the thermovoltaic effect in zinc oxide inhomogeneously doped with mixed-valence impurities

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

doi:10.1134/S1063785017090255

A new type of gas sensor based on the thermovoltaic effect in zinc oxide inhomogeneously doped with mixed-valence impurities

Autores: Pronin I.¹^,2, Yakushova N.¹, Dimitrov D.³, Krasteva L.³, Papazova K.³, Karmanov A.¹, Averin I.¹, Georgieva A.⁴, Moshnikov V.¹^,2, Terukov E.⁵
Afiliações:
1. Penza State University
2. State Electrotechnical University (LETI)
3. Sv. Kliment Ohridski University of Sofia
4. University of Florida
5. Ioffe Physical Technical Institute
Edição: Volume 43, Nº 9 (2017)
Páginas: 825-827
Seção: Article
URL: https://journals.rcsi.science/1063-7850/article/view/205973
DOI: https://doi.org/10.1134/S1063785017090255
ID: 205973

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Resumo

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.