Time-Dependent Growth and Optical Properties of Stannous Oxide Architectures

摘要

The facile template/catalyst-free hydrothermal technique employed to fabricate tin monoxide architectures, is reported in the present study. Novel sheets of cross, square and rectangular shapes of romarchite stannous oxide (α-SnO) based micro-nanostructures were successfully synthesized. Crystalline phase, chemical physics structure, composition and morphology of as-obtained SnO structures was characterized by X-ray diffraction (XRD), Raman spectroscopy, energy-dispersive X-ray (EDX) spectroscopy and field-emission scanning electron microscopy (FE-SEM). FE-SEM results showed that as-synthesized SnO cross-shaped architectures were in the range of 6～9 μm and average size of the crystallite rectangular sheets was about 100 nm. Experimental results confirmed that the hydrothermal reaction time exhibits a strong influence on morphology and particle size of the resulting product. Finally, possible growth mechanisms, information of vibrational modes by Raman spectroscopy, and photoluminescent properties of the as-synthesized SnO materials are discussed.