Synthesis, characterization and electrochemical behavior of Sb-doped ZnO microsphere film
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- 作者：Qian Li ; Kui Cheng ; Wenjian Weng ; Piyi Du ; Gaorong Han
- 关键词：Sb-doped ZnO microsphere film ; Hydrothermal growth ; Electrochemical behaviors ; Hydrogen peroxide biosensor
- 刊名：Thin Solid Films
- 出版年：2013
- 出版时间：1 October, 2013
- 年：2013
- 卷：544
- 期：Complete
- 页码：466-471
- 全文大小：1006 K
文摘
Sb-doped ZnO microsphere film was fabricated by a carboxylate ion assisted hydrothermal route coupled with a post-calcination process. The structure, chemical composition and optical band gap of the Sb-doped ZnO microsphere film were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, inductively couple plasma optical emission spectroscopy and UV-visible spectrophotometry, and compared with the un-doped ZnO microsphere film. The results suggest that the formation of zinc-antimony tartrate complex species during hydrothermal growth is the key to realize Sb-doped ZnO microstructures, and the present hydrothermal method with post-calcination is an effective way to dope Sb into ZnO. Furthermore, the Sb-doped ZnO microsphere film based electrochemical biosensor exhibits a good sensing performance for the detection of hydrogen peroxide, with a sensitivity of 271 ¦ÌA mM? 1 cm? 2 which is more than three times higher than that of the un-doped ZnO biosensor.