掺锂Ba0.55Sr0.45TiO3 (BLST)薄膜的光学性质和晶体结构

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

Ferroelectrics Letters Section Pub Date : 2018-08-31 DOI:10.1080/07315171.2018.1499361

Irzaman, A. Nuraisah, Aminullah, K. A. Hamam, H. Alatas

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引用次数: 2

摘要

摘要通过在p型Si(111)衬底表面生长li20掺杂Ba0.55Sr0.45TiO3，成功制备了掺杂Ba0.55Sr0.45TiO3 (BLST)薄膜。BST和BLST薄膜的退火温度为850℃，浓度为1m，退火时间为15小时。Li掺杂剂的加入使晶格参数、薄膜厚度、间隙能变小，折射率增大。这些结果得到了成像表面形貌的支持，Li+离子由于其半径小，可以在结构中取代Sr2+离子。BST和BLST薄膜的结构表征表明它们具有立方结构。

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Optical properties and crystal structure of lithium doped Ba0.55Sr0.45TiO3 (BLST) thin films

Abstract Lithium (0, 1, 3, 5%) doped Ba0.55Sr0.45TiO3 (BLST) thin films have been successfully manufactured by growing Li2O-doped Ba0.55Sr0.45TiO3 on the surface of p-type Si (111) substrate. Concentration of 1 M with annealing temperature of 850 °C for 15 hours was used in BST and BLST films. The Li dopant addition induced smaller lattice paramater, film thickness, gap energy, and greater refractive index. These results were supported by imaging surface morphology which Li+ ion can replace Sr2+ ion in the structure due to its small radius. Characterization of BST and BLST films structural showed they have cubic structure.

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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.