CuO/SnO2 thin film heterostructures as chemical sensors to H2Sстатья
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Дата последнего поиска статьи во внешних источниках: 29 мая 2015 г.
Аннотация:CuO/SnO2 heterostructures as well as SnO2(CuO) polycrystalline films have been studied for H2S sensing. Gas sensing properties of these materials have been compared in conditions: 25-300 ppm H2S in N-2 at 100-250 degrees C. A shorter response time of the heterostructures as compared to that of the SnO2(CuO) films has been found. It is suggested that the improvement of dynamic sensor properties of SnO2/CuO heterostructures is caused by the localization of electrical barrier between CuO and SnO2 layers. (C) 1998 Elsevier Science S.A. All rights reserved.