FIELD: chemistry.
SUBSTANCE: invention comprises producing nano-heterogeneous material based on whisker crystals of n-type oxides SnO2, ZnO, In2O3 and nano-clusters of p-type oxides CuO, NiO, Co3O4 immobilised on the surface of said crystals. The method includes producing whisker crystals from vapour and impregnating the crystals with salt solutions, followed by annealing to form p-n heterocontacts.
EFFECT: high selective sensitivity of the sensor to H2S and derivatives thereof in air.
3 cl, 2 ex
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