Sreenivasa Kumar Godlaveeti, Ammar M. Tighezza, Gopal Naik. B, Subramanyam Pulimi, Rosaiah Pitcheri, Ramamanohar Reddy Nagireddy and Rajababu Chintaparty
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引用次数: 0
摘要
本研究报告通过共沉淀法合成了高介电常数氧化锆（ZrO2）纳米棒（NRs），然后在 700 °C 煅烧 2 小时。X 射线衍射（XRD）证实了正方体和单斜体结构的混合相组成，而透射电子显微镜（TEM）则显示了独特的纳米棒。能量色散 X 射线分析（EDAX）验证了元素组成。光致发光（PL）光谱显示带隙能为 1.9 eV，与正方氧化锆的带隙能更接近。紫外-可见光分析表明，氧空位缺陷可能会影响纳米棒形态的光学特性。重要的是，介电研究显示，1 MHz 时介电常数高达 29，比市面上销售的氧化锆高出约四倍。
Synthesis and Characterization of High Dielectric Constant Zirconia Nano-Rods for Advanced Sensors and Energy Storage Applications
This study reports the synthesis of high dielectric constant zirconia oxide (ZrO2) nanorods (NRs) via a co-precipitation method followed by calcination at 700 °C for 2 h. X-ray diffraction (XRD) confirms a mixed-phase composition of orthorhombic and monoclinic structures, while transmission electron microscopy (TEM) reveals distinct nanorods. Energy dispersive X-ray analysis (EDAX) verifies the elemental composition. Photoluminescence (PL) spectroscopy indicates band gap energy of 1.9 eV, aligning better with orthorhombic zirconia. UV–vis analysis suggests oxygen vacancy defects potentially influencing the optical properties due to the nanorod morphology. Importantly, dielectric studies show a high dielectric constant of 29 at 1 MHz, which is approximately four times higher than commercially available ZrO2.
期刊介绍：
The ECS Journal of Solid State Science and Technology (JSS) was launched in 2012, and publishes outstanding research covering fundamental and applied areas of solid state science and technology, including experimental and theoretical aspects of the chemistry and physics of materials and devices.
JSS has five topical interest areas:
carbon nanostructures and devices
dielectric science and materials
electronic materials and processing
electronic and photonic devices and systems
luminescence and display materials, devices and processing.
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