In situ study of ZnO-NaCl system during the growth of ZnO nanorods, Nanotechnologyстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Synchrotron x-ray diffraction and high temperature SEM examinations wereused to study the crystallochemical and morphological evolution of aZnO–NaCl system during thermal processing. Decomposition of ZnOprecursor (Zn2(OH)2CO3 ∗ xH2O) at T < 400 ◦C is accompanied byshrinkage and destruction of its fibre-like particles into nanosized isotropicZnO crystallites. Intensive intergrowth of ZnO nanoparticles and itsinteraction with coarse NaCl crystallites leads at T = 650–700 ◦C to theformation of a continuous sponge-like framework with an elementary unitsize which is far below the initial size of NaCl crystallites. The highertemperature processing at T 700 ◦C is accompanied by the appearance ofnanorods. The role of the metastable liquid phase in the formation of ZnOnanorods at T < 800 ◦C is discussed. Luminescence properties of ZnOnanorods synthesized at 500 and 700 ◦C were demonstrated.