Microwave assisted hydrothermal synthesis of zinc hydroxystannate films on glass substrates
2012 (English)In: Journal of Sol-Gel Science and Technology, ISSN 0928-0707, E-ISSN 1573-4846, Vol. 62, no 3, 495-504 p.Article in journal (Refereed) Published
Zinc stannate (ZnSnO 3, Zn 2SnO 4) and its precursor, i.e. zinc hydroxystannate (ZnSn(OH) 6), have emerged as technological nanomaterials for different applications. Herein, we report synthesis of polycrystalline zinc hydroxystannate (ZHS) film on glass substrate through facile and efficient microwave assisted hydrothermal growth. The method comprises of three steps; deposition of ZnO seed films on glass substrates through spray pyrolysis, growth of ZnO nanorod arrays over the seeded substrates through microwave assisted hydrothermal method and transformation of the as-synthesized ZnO nanorod arrays into the ZHS films through microwave treatment in aqueous precursor solution of SnCl 4 and NaOH. The films were characterized by energy dispersive X-ray spectroscopy, X-ray diffraction and scanning electron microscopy (SEM). The films contain two crystalline phases namely ZnO with  as preferred growth direction and ZnSn(OH) 6 preferably grown along  vector. The obtained ZHS films consist of crystals of exclusively cubic structure with sizes up to several microns. Microwave irradiation time, NaOH/SnCl 4 molar ratio, concentration of Sn 4+ ions, and the applied power are the four parameters which influence the size, aerial density and growth rate of ZHS microblocks.
Place, publisher, year, edition, pages
Springer, 2012. Vol. 62, no 3, 495-504 p.
IdentifiersURN: urn:nbn:se:kth:diva-176528DOI: 10.1007/s10971-012-2754-2ISI: 000303885100030ScopusID: 2-s2.0-84861956597OAI: oai:DiVA.org:kth-176528DiVA: diva2:914364
QC 201603292016-03-232015-11-072016-03-29Bibliographically approved