Li, Yue and Guo, Yanqun and Tan, Ruiqin and Cui, Ping and Li, Yong and Song, Weijie (2009) Synthesis of SnO2 nano-sheets by a template-free hydrothermal method. Materials Letters, 63 (24-25). 2085- 2088.
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Official URL: http://www.sciencedirect.com/science/article/B6TX9...
Abstract
Square SnO2 nano-sheets have been successfully synthesized by a template-free hydrothermal method basing on the reaction between SnCl2 and NaOH in ethanol/water solution. The products have been characterized by X-ray diffraction, scanning electron microscope, and transmission electron microscope. The size and morphology of nano-sheets could be controlled by changing the ratio of ethanol to water. Compared experiments showed that the addition of NaOH was crucial to the formation of SnO2 nano-sheets, and the addition of glycol could induce the formation of cabbage-like structure. The nano-sheets show a strong absorption peak around 330 nm, corresponding to a band gap value of 3.75 eV. This blue shift of the band gap energy was possibly induced by the spatial confinement of excitons in the nano-sheet structures.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Nanomaterials; Hydrothermal; SnO2; Microstructure; Nano-sheets |
| Subjects: | Material Science > Nanofabrication processes and tools |
| ID Code: | 6590 |
| Deposited By: | SPI |
| Deposited On: | 10 Feb 2010 17:39 |
| Last Modified: | 10 Feb 2010 17:39 |
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