| 新型脉冲激光能量计用无铅(Na_(1-x)K_x)_(0.5)Bi_(0.5)TiO_3铁电薄膜的制备及其激光感生热电电压信号的研究 |
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| 引用本文： | 尚杰,张辉,唐艳艳,曹明刚,张鹏翔.新型脉冲激光能量计用无铅(Na_(1-x)K_x)_(0.5)Bi_(0.5)TiO_3铁电薄膜的制备及其激光感生热电电压信号的研究[J].功能材料与器件学报,2011(3). |
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| 作者姓名： | 尚杰 张辉 唐艳艳 曹明刚 张鹏翔 |
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| 作者单位： | 昆明理工大学光电子新材料研究所;潍坊学院物理与电子科学学院; |
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| 基金项目： | 国家自然科学基金资助(No.10274026); 昆明理工大学校青年基金(项目编号:校青2007-6) |
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| 摘 要： | 采用脉冲激光沉积(PLD)技术,分别在LaA lO3(LAO)、(La,Sr)(A l,Ta)O3(LAST)及SrTiO3(STO)三种不同的单晶衬底上制备了一系列无铅(Na1-xKx)0.5B i0.5TiO3(x=0.00,0.08,0.19,0.30,NKBT)铁电薄膜材料。利用X射线衍射(XRD)仪对薄膜结构进行了分析,结果表明在单晶平衬底上生长的薄膜都是单取向生长的外延膜,其中摇摆曲线的半高宽(FWHM)显示在(La,Sr)(A l,Ta)O3单晶衬底上生长的薄膜结晶质量最好。另外,在20°倾斜的(La,Sr)(A l,Ta)O3单晶衬底上生长的(Na1-xKx)0.5B i0.5TiO3铁电薄膜中还首次观察到了激光感生热电电压(LITV)信号。发现在能量为0.48mJ/pulse的紫外脉冲激光辐照下,其最大激光感生热电电压为31mV,完全满足了制作脉冲激光能量计探测元件的要求,有望开发出可集成的新型脉冲激光能量计。
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| 关 键 词： | 无铅铁电薄膜 脉冲激光能量计 激光感生热电电压 脉冲激光沉积 |
Fabrication of Lead-free(Na_(1-x)K_x)_(0.5)Bi_(0.5)TiO_3 Ferroelectric Films for New-style Pulse Laser Energy Detector and Study of Laser Induced Thermoelectric Voltage Signals |
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| SHANG Jie,ZHANG Hui,TANG Yan-yan,CAO Ming-gang,ZHANG Peng-xiang.Fabrication of Lead-free(Na_(1-x)K_x)_(0.5)Bi_(0.5)TiO_3 Ferroelectric Films for New-style Pulse Laser Energy Detector and Study of Laser Induced Thermoelectric Voltage Signals[J].Journal of Functional Materials and Devices,2011(3). |
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| Authors: | SHANG Jie ZHANG Hui TANG Yan-yan CAO Ming-gang ZHANG Peng-xiang |
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| Affiliation: | SHANG Jie1,ZHANG Hui1,TANG Yan-yan2,CAO Ming-gang1,ZHANG Peng-xiang1(1.Institute of Advanced Materials for Photo-electronics,Kunming University of Science and Technology,Kunming 650051,China,2.College of Physics and Electronic Scientific,Weifang University,Weifang 261061,China) |
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| Abstract: | Using pulse laser deposition(PLD) technology,a series of lead-free(Na1-xKx)0.5Bi0.5TiO3 ferroelectric films were fabricated on LaAlO3(LAO),(La,Sr)(Al,Ta)O3(LAST) and SrTiO3(STO) monocrystalline substrates,respectively.The structure of thin films was analyzed by X-ray diffraction(XRD).The results show that the thin films growing on flat monocrystalline substrates are all epitaxial.The full wave at half maximum(FWHM) of rocking curve indicates that the crystallinity of thin films growing on(La,Sr)(Al,Ta)O3 mo... |
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| Keywords: | lead-free ferroelectric films pulse laser energy detector laser induced thermoelectric voltage pulse laser deposition |
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