| 溶胶-凝胶法制备掺镧钛酸钡薄膜及其光学性质研究 |
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| 引用本文： | 姜维海,林泽彬,刘行冰,蔡苇,符春林.溶胶-凝胶法制备掺镧钛酸钡薄膜及其光学性质研究[J].重庆科技学院学报(自然科学版),2011,13(5):114-116. |
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| 作者姓名： | 姜维海 林泽彬 刘行冰 蔡苇 符春林 |
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| 作者单位： | 重庆科技学院,重庆,401331 |
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| 基金项目： | 重庆市自然科学基金项目fCSTC2010BB4286)，重庆科技学院冶金与材料工程学院大学生科技创新项目，重庆科技学院校内科研基金项目 |
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| 摘 要： | 以硝酸镧、醋酸钡、钛酸四丁酯为原料，采用溶胶一凝胶旋涂法制备掺La的钛酸钡薄膜，研究薄膜的晶体结构、表面形貌、紫外-可见光吸收性能及光学带隙。研究结果表明，纯钛酸钡和掺La钛酸钡薄膜均为单一四方钙钛矿结构，La3＋的引入可以使钛酸钡薄膜在可见光区的透过率和光学带隙有一定程度下降，而退火温度对掺镧钛酸钡薄膜光学带隙基本无...
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| 关 键 词： | 溶胶-凝胶 钛酸钡 镧 透过率 光学带隙 |
On the Application of Sol-gel Method to Make La-doped Barium Titanate Thin Film and Its Optical Properties |
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| JIANG Wei-hai,LIN Ze-bin,LIU Xing-bing,CAI Wei,FU Chun-lin.On the Application of Sol-gel Method to Make La-doped Barium Titanate Thin Film and Its Optical Properties[J].Journal of Chongqing University of Science and Technology:Natural Science Edition,2011,13(5):114-116. |
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| Authors: | JIANG Wei-hai LIN Ze-bin LIU Xing-bing CAI Wei FU Chun-lin |
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| Affiliation: | (Chongqing University of Science and Technology,Chongqing 401331) |
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| Abstract: | La-doped barium titanate thin films were made by using sol-gel spin coating and lanthanum nitrate, barium acetate and tetrabutyl titanate. The crystal structure, surface morphology, absorptivity of ultraviolet and visible light and optical bandgap of thin films have been investigated. It is indicated that pure and La-doped barium titanate thin films are single phase tetragonal perovskite structure. Addition of La3＋ can lead to the decrease of transmittance of barium titanate thin films at visible light region and optical bandgap. The annealing temperature has no obvious effect on optical bandgap of La-doped barium titanate thin films. |
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| Keywords: | sol-gel barium titanate lanthanum transmittance optical bandgap |
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