Gas-sensitive nanostructured ZnO films praseodymium and europium doped: Electrical conductivity, selectivity, influence of UV irradiation and humidity

Artem S. Mokrushin,Ilya A. Nagornov,Tatiana L. Simonenko,Nikolay P. Simonenko,Philipp Yu. Gorobtsov,Ivan A. Arkhipushkin,Elizaveta P. Simonenko,Vladimir G. Sevastyanov,Nikolay T. Kuznetsov

Applied Surface Science（2022）

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摘要

•Powders of rod-shaped ZnO nanoparticles Eu and Pr doped were synthesized by the solvothermal method.•Pneumatic microextrusion printing has been used for applying gas-sensitive coatings.•According to XPS data on the surface of ZnO praseodymium and europium are in the oxidation states + 3/+4 and + 2/+3.•Samples doped with Eu and Pr showed improved kinetic characteristics when detecting NO2 and increased response in a humid atmosphere.

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关键词

MOS gas sensor,Zinc oxide (ZnO),Praseodymium (Pr),Europium (Eu),Humidity,NO2

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