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PZT薄膜的结晶特性及红外特性
引用本文:谢东珠,任玉磊.PZT薄膜的结晶特性及红外特性[J].上海师范大学学报(自然科学版),2008,37(6):587-591.
作者姓名:谢东珠  任玉磊
作者单位:上海师范大学,数理学院,上海,200234
摘    要:采用电子柬蒸发方法在n—Si(100)衬底上制备Pb(ZrxTi1-x)O3(简记为PZT)多晶薄膜.用X射线衍射分析了PZT薄膜的结晶择优取向与Zr/Ti成分比、生长温度、退火气氛和退火温度的关系.结果表明不同Zr/Ti比的薄膜在真空中退火都形成(110)择优取向;而在空气中退火后薄膜的择优方向与Zr/Ti成分比有关,Zr/Ti比值小时为(101)择优取向,Zr/Ti大时为(100)择优取向.红外吸收光谱的测量结果表明(100)和(110)择优取向的PZT薄膜在长红外波段(8~12um)存在较强的吸收峰,而(101)择优取向的PZT薄膜在这一波段没有明显的吸收峰.

关 键 词:PZT材料  择优取向  X射线衍射  红外吸收光谱

The structure and infrared absorption diagnostics of PZT thin films
XIE Dong-zhu,REN Yu-lei.The structure and infrared absorption diagnostics of PZT thin films[J].Journal of Shanghai Normal University(Natural Sciences),2008,37(6):587-591.
Authors:XIE Dong-zhu  REN Yu-lei
Institution:( College of Mathematics and Sciences, Shanghai Normal University, Shanghai 200234, China)
Abstract:Polycrystalline Pb( Zrx Ti1-x ) O3 ( PZT, with x = 0.05, 0.5,0.95 ) thin films are prepared on n-doped Si ( 100 ) substrates by electron beam evaporation. The X-ray diffraction (XRD) is employed to examine the preferential orientation during deposition or after-grown annealing of the Polycrystalline PZT films. The infrared absorption spectra of the PZT films are also characterized. XRD measurement showed that the Pb( Zr0.05Ti0.95 ) 03 , Pb( Zr0.5Ti0.5 ) O3 and Pb( Zr0.95Ti0.05 ) 03 thin films, after 2 hours annealing in vacuum, has (110) preferential orientation. After annealed in air, the preferential orientation of the Pb (Zr0.05Ti0.95) O3 ,Pb(Zr0.5Ti0.5 ) 03 and Pb( Zr0.95Ti0.05 ) 03 thin films is ( 101 ), (110) and (100) respectively. (100) and (110) preferential orientated PZT films have a strong absorption peak in 8 - 12 m wavelength region, whereas the PZT film with ( 101 ) preferential orientation has not.
Keywords:PZT  XRD  infrared absorption spectrum
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