Résultats de recherche
Il y a 15 heures · Contents. UNESCO. The United Nations Educational, Scientific and Cultural Organization ( UNESCO; pronounced / juːˈnɛskoʊ /) [1] [a] is a specialized agency of the United Nations (UN) with the aim of promoting world peace and security through international cooperation in education, arts, sciences and culture.
Il y a 15 heures · In this article, we report undoped SnO2 and PbO-doped SnO2 thick films to study their microstructural and sensing behaviours. Three samples have been fabricated using a screen-printing technique on an alumina substrate and these are S1 (undoped SnO2), S2 (1 wt% PbO-doped SnO2 firing at 800°C) and S3 (1 wt% PbO-doped SnO2 firing at 900°C). XRD and AFM techniques are used to observe the ...
