| 不同周期数GDC/YSZ多层电解质薄膜的电学性能与结构稳定性 |
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| 引用本文： | 姜雪宁,孟昕,孟宪芹,张庆瑜.不同周期数GDC/YSZ多层电解质薄膜的电学性能与结构稳定性[J].功能材料,2011,42(9). |
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| 作者姓名： | 姜雪宁 孟昕 孟宪芹 张庆瑜 |
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| 作者单位： | 大连理工大学三束材料改性教育部重点实验室,辽宁大连,116024 |
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| 基金项目： | 国家自然科学基金资助项目(50502010) |
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| 摘 要： | 利用反应磁控溅射方法在蓝宝石单晶衬底上制备了调制周期相同、周期数不同的GDC/YSZ纳米多层薄膜,采用X射线衍射、原子力显微镜对薄膜结构、粗糙度、生长形貌进行了表征,利用交流阻抗谱仪测试了多层薄膜不同温度下的电学性能。结果表明衬底上首层薄膜是整个多层膜的生长模板,首先沉积GDC时多层膜呈无规则生长而首先沉积YSZ时多层膜为（111）织构;GDC/YSZ多层膜的生长是一个逐渐粗糙化的过程,随着薄膜厚度的增大（周期数的增多）,多层膜粗糙度与晶粒尺寸增大;随着周期数的增多,多层膜电导率逐渐增大,但电导活化能基本保持不变（约1.3eV）;在500～800℃下退火,多层膜结构稳定,但由于薄膜晶粒长大,导致其电导率小幅降低（降低百分比〈5%）。
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| 关 键 词： | GDC/YSZ多层薄膜 周期数 生长形貌 电学性能 结构稳定性 |
Electrical properties and structural stabilities of GDC/YSZ electrolyte multilayer with different number of modulation period |
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| JIANG Xue-ning,MENG Xin,MENG Xian-qin,ZHANG Qing-yu.Electrical properties and structural stabilities of GDC/YSZ electrolyte multilayer with different number of modulation period[J].Journal of Functional Materials,2011,42(9). |
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| Authors: | JIANG Xue-ning MENG Xin MENG Xian-qin ZHANG Qing-yu |
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| Affiliation: | JIANG Xue-ning,MENG Xin,MENG Xian-qin,ZHANG Qing-yu(Key Laboratory of Materials Modification by Laser,Ion and Electron Beams,Ministry of Education,Dalian University of Technology,Dalian 116024,China) |
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| Abstract: | GDC/YSZ electrolyte multilayers with the same modulation period and different period number had been synthesized on sapphire singe crystal substrate by reactive magnetron sputtering.Their structure,growth morphologies and electrical properties have been characterized by X-ray diffraction,atomic force microscopy and ac impedance measurement respectively.The results indicate that,the first layer on the substrate acts as a growth template for the multilayer;the first layer of GDC and YSZ results in random grow... |
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| Keywords: | GDC/YSZ multilayers number of modulation period growth morphologies electrical properties structural stabilities |
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