期刊文献+

Fe^(3+)/Bi^(3+)对纯相BiFeO_3薄膜的影响及生长机理研究

Influence of Fe^(3+)/Bi^(3+) on preparation of pure phase BiFeO_3 films by liquid phase self-assembled method and study of growth mechanism
下载PDF
导出
摘要 以Bi(NO3)3.5H2O,Fe(NO3)3.9H2O为原料,柠檬酸为螯合剂,用液相自组装法,在ITO玻璃基片上制备了纯相BiFeO3薄膜。研究了前驱液中Fe3+/Bi 3+摩尔比对BiFeO3薄膜的影响。利用XRD,EDS,XPS,FE-SEM和FT-IR等测试手段对BiFeO3薄膜进行了表征。结果表明,由于柠檬酸对Fe3+的掩蔽作用,使得Bi 3+络合物比Fe3+络合物沉积速率大,导致薄膜出现Bi2O3和Bi2O2.33相,随着Fe3+/Bi 3+摩尔比增加到2.6时,制备了纯相BiFeO3薄膜;薄膜表面平整致密,颗粒均匀,生长完好,薄膜厚度约为275nm;BiFeO3薄膜中Fe原子的氧化态是Fe3+;Bi 3+和Fe3+的络合物以不同的速率被—OH诱导吸附到ITO玻璃基片上,形成牢固的化学键结合,退火处理后形成晶态BiFeO3薄膜。 Pure phase BiFeO3 films were successfully prepared on ITO/glass substrates by liquid phase self-assembled method using Bi(NO3)3·5H2O,Fe(NO3)3·9H2O as raw materials and citrate acid as chelating agent.The influence of Fe3+/Bi3+ molar ratio on the preparation of BiFeO3 films was studied.The BiFeO3 films were characterized by XRD,EDS,XPS,FE-SEM and FT-IR.The results indicated that:the covering effect of citrate acid to Fe3+ is responsible for the larger deposition rates of the chelates of Bi3+,which made the Bi2O3 and Bi2O2.33 phase could be observed,and the pure phase BiFeO3 films are obtained when the Fe3+/Bi3+ molar ratio was added to 2.6;the films are dense,smooth,grown well,the thickness of the pure phase BFO thin film is approximately 275 nm;the oxidation state of Fe atom is Fe3+ in the films;the chelates of Bi3+ and Fe3+ are induced and adsorbed onto the ITO/glass substrates with different rates through the —OH,which form strong chemical bonding,the crystalline BiFeO3 films are obtained after annealing process.
出处 《功能材料》 EI CAS CSCD 北大核心 2011年第4期598-600,604,共4页 Journal of Functional Materials
基金 国家自然科学基金资助项目(50872077) 陕西科技大学科研创新团队基金资助项目(TD09-05)
关键词 自组装 BIFEO3薄膜 纯相 self-assembly BiFeO3 films pure phase
  • 相关文献

参考文献7

  • 1Tennon C, Thery J, Baron T, et al. [J]. Thin Solid Films, 2006, 515: 481-484. 被引量:1
  • 2Zhang G J, Cheng J R, Chen R, et al.[J].Trans Nonerrous Met Soc China, 2006, 16: s123-s125. 被引量:1
  • 3Kartavtseva M S, Gorbenko O Y, Kaul A R, et al. [J]. Thin Solid Films, 2007, 515: 6416-6421. 被引量:1
  • 4Gao Y F, Masuda Y, Koumoto K. [J]. Chem Mater, 2003, 15(12): 2399-2410. 被引量:1
  • 5Gao Y F, Masuda Y, Yonezawa T, et al. [J]. Chem Mater, 2002, 14(12): 5006-5014. 被引量:1
  • 6TanGQ, SongY Y, Miao H Y. [J].SciChina Set E, 2010, 53(2) :375-378. 被引量:1
  • 7XuJ M, WangGM, WangHX, etal. [J].MaterLett, 2009,63: 855-857. 被引量:1

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部