| 三氧化钨溶胶稳定机理及薄膜结构变化特征探讨 |
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| 引用本文： | 徐雪青,沈辉,庄琳,黄维林. 三氧化钨溶胶稳定机理及薄膜结构变化特征探讨[J]. 光谱实验室, 2001, 18(1): 129-133 |
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| 作者姓名： | 徐雪青 沈辉 庄琳 黄维林 |
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| 作者单位： | 1. 中国科学院广州能源研究所太阳能利用实验室
2. 华南理工大学材料学院 |
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| 基金项目： | 中国科学院 1998年度题为光电转换及功能材料“百人计划”项目资助 |
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| 摘 要： | 本文以钨酸钠阳离子树脂酸化法制备三氧化钨溶胶，采用提拉法成膜，并讲座了溶胶稳定和成膜的机理，通过TG－DTA和IR分析探讨了固体薄在热算是过程中的结构变化，实验结果表明，双氧水和乙醇与钨酸络合，使溶胶稳定，挥发性强的小分子配体（如乙醇）对成膜有利，TG－DTA和IR分析结果表明，随着热处理温度的提高，薄膜中多聚钨酸离子（或者产氧化钨分子簇）进一步缩合，WO6八面对称性逐渐增强。
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| 关 键 词： | 三氧化钨溶胶 成膜机理 薄膜结构 稳定机理 钨酸钠阳离子树脂酸化法 |
| 文章编号： | 1004-8138(2001)01-0129-05 |
| 修稿时间： | 2000-08-10 |
Mechanisms of Stability of WO3 Sols and Structural Evolution of Films |
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| XU Xue-qing,SHEN Hui,ZHUANG Lin,HUANG Wei-lin. Mechanisms of Stability of WO3 Sols and Structural Evolution of Films[J]. Chinese Journal of Spectroscopy Laboratory, 2001, 18(1): 129-133 |
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| Authors: | XU Xue-qing SHEN Hui ZHUANG Lin HUANG Wei-lin |
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| Abstract: | Tungsten trioxide colloidal solutions were prepared by ion exchange method.WO 3 thin films were deposited by dip coating technique.The mechanisms of stability of the sols and film formations were discussed.The evolutions of the structure of films after heat treatment are discussed by means of TG DTA and IR analysis.It is indicated that H 2O 2 and ethanol are coordinated with tungstic acid,which makes sols stable.Volatile Ligands(for example ethanol)are favorable for film formation.It is concluded that ions are condensed gradually in the process of heat treatment polytungstate acid,the symmetry of the WO 6 octahedral is improved and the strength of the W O Wbond is increased. |
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| Keywords: | Tungsten Trioxide Stability of Sols Mechanism of film Formation Structure. |
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