Effect of Oxygen Mixing Percentage on Mechanical and Microwave Dielectric Properties of SrBi4Ti4O15 Thin Films

IF 1.5 4区物理与天体物理 Q3 PHYSICS, CONDENSED MATTER

Advances in Condensed Matter Physics Pub Date : 2023-12-12 DOI:10.1155/2023/8230336

A. Rambabu, K. C. James Raju, Polamarasetty P. Kumar, Ramakrishna S. S. Nuvvula, Baseem Khan

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Abstract

Aurivillus oxide thin films with nanostructures attained much interest due to their structural stability, outstanding ferroelectric, and dielectric properties. This manuscript reports the influence of oxygen mixing percentage (OMP) on structural, nanomechanical, and microwave dielectric properties of strontium bismuth titanate (SrBi₄Ti₄O₁₅) thin films. SrBi₄Ti₄O₁₅ films were successfully fabricated on fused silica substrates at room temperature, followed by annealed in a microwave furnace. The crystalline nature and purity of the phase was identified by X-ray diffraction. Nanomechanical properties of the SrBi₄Ti₄O₁₅ films were studied using nanoindentation and nanoscratch tests. The best nanomechanical (hardness ∼6.9 GPa, Young’s modulus ∼120 GPa) properties were shown for films deposited around 50% of OMP. Microwave dielectric properties (dielectric constant and loss tangent at microwave frequencies 10 and 20 GHz) were extracted from the split postdielectric resonator technique.

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氧气混合比例对 SrBi4Ti4O15 薄膜机械和微波介电性能的影响

具有纳米结构的金氧化物薄膜因其结构稳定、出色的铁电和介电特性而备受关注。本手稿报告了氧气混合比例（OMP）对钛酸锶铋（SrBi4Ti4O15）薄膜的结构、纳米力学和微波介电性能的影响。钛酸锶铋（SrBi4Ti4O15）薄膜是在室温下在熔融石英基底上成功制备的，然后在微波炉中退火。通过 X 射线衍射确定了该相的结晶性质和纯度。利用纳米压痕和纳米划痕测试研究了 SrBi4Ti4O15 薄膜的纳米力学性能。在 OMP 值 50% 左右沉积的薄膜具有最佳的纳米力学性能（硬度 ∼6.9 GPa，杨氏模量 ∼120 GPa）。微波介电性能（介电常数和微波频率为 10 和 20 GHz 时的损耗正切）是通过分离后介电谐振器技术提取的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Advances in Condensed Matter Physics PHYSICS, CONDENSED MATTER-

CiteScore

2.30

自引率

0.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Advances in Condensed Matter Physics publishes articles on the experimental and theoretical study of the physics of materials in solid, liquid, amorphous, and exotic states. Papers consider the quantum, classical, and statistical mechanics of materials; their structure, dynamics, and phase transitions; and their magnetic, electronic, thermal, and optical properties. Submission of original research, and focused review articles, is welcomed from researchers from across the entire condensed matter physics community.