Li和Cu掺杂剂对Ba0.65Sr0.35TiO3薄膜晶体结构的影响

IF 1.3 4区物理与天体物理 Q4 PHYSICS, CONDENSED MATTER

Ferroelectrics Letters Section Pub Date : 2018-11-02 DOI:10.1080/07315171.2018.1537333

Irzaman, M. Dahrul, B. Yuliarto, K. Hammam, H. Alatas

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引用次数: 8

摘要

摘要采用溶胶-凝胶和旋涂法制备了钛酸锶钡Ba0.65Sr0.35TiO3及其掺杂锂(Li)和铜(Cu)薄膜。采用旋涂技术进行化学溶液沉积。Li和Cu掺杂剂的加入导致了晶格常数的变化和晶粒尺寸的变化。由Scherrer’s方程可知，BLST和BCST薄膜的晶粒尺寸分别比BST大和小。结果表明，晶体结构形成于立方结构和四边形结构之间。扫描电镜证实薄膜表面均匀，能量色散x射线显示化学成分符合所考虑的化学计量学。

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Effects of Li and Cu dopants on the crystal structure of Ba0.65Sr0.35TiO3 thin films

Abstract A barium strontium titanate Ba0.65Sr0.35TiO3 and its lithium (Li) and copper (Cu) doped thin films have fabricated on quartz substrates based on sol-gel and spin-coating method. Chemical solution deposition with spin-coating technique deposited the thin films. The addition of Li and Cu dopants lead to the change of lattice constant and the change of grain size. From Scherrer’s equation, it found that BLST and BCST thin films have larger and smaller grain size than that of BST, respectively. It also revealed that the crystal structures formed in a phase between cubic and tetragonal structure. Scanning electron microscopy was confirmed homogenous surfaces of thin film and energy dispersive x-ray was showed chemical composition according to the considered stoichiometry.

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来源期刊

Ferroelectrics Letters Section 物理-物理：凝聚态物理

CiteScore

1.10

自引率

0.00%

发文量

审稿时长

4.8 months

期刊介绍： Ferroelectrics Letters is a separately published section of the international journal Ferroelectrics. Both sections publish theoretical, experimental and applied papers on ferroelectrics and related materials, including ferroelastics, ferroelectric ferromagnetics, electrooptics, piezoelectrics, pyroelectrics, nonlinear dielectrics, polymers and liquid crystals. Ferroelectrics Letters permits the rapid publication of important, quality, short original papers on the theory, synthesis, properties and applications of ferroelectrics and related materials.