Control of atomic ordering of LiNiO2 thin films on a sapphire substrate from rock-salt to layered structure using uniaxial compression
Control of atomic ordering of LiNiO2 thin films on a sapphire substrate from rock-salt to layered structure using uniaxial compression
复制标题
使用单轴压缩控制蓝宝石衬底上的 LiNiO2 薄膜从岩盐到层状结构的原子排序
DOI：
10.1016/j.jallcom.2023.169177
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发表时间：
2023
影响因子：
6.2
通讯作者：
Sakata Osami
中科院分区：
文献类型：
--
作者：
Seo Okkyun;Kim Jaemyung;Tang Jiayi;Kumara L.S.R.;Kimoto Koji;Miki Kazushi;Matsuda Akifumi;Yoshimoto Mamoru;Sakata Osami
氧化物薄膜中的原子有序性影响材料的电学和催化性能。本文研究了在蓝宝石衬底上制备的LiNiO2薄膜经单轴压缩（UAC）和600 ℃退火后的原子排列。采用脉冲激光沉积法在室温下生长了具有岩盐结构的薄膜。我们发现，在600 ℃的UAC处理的生长的薄膜从岩盐转变为层状结构。后一种结构的层厚度随着UAC压力的增加而增加。UAC为氧化物薄膜的研究提供了一个有用的工具，将有助于开发新的功能氧化物材料和调整阳离子材料的原子有序性。
Atomic ordering in oxide thin films influences electrical and catalytic properties of the materials. Herein, we investigated the atomic arrangement of LiNiO2thin films on sapphire substrates treated by uniaxial compression (UAC) and annealing at 600∘C. Thin films with a rock-salt structure were grown using a pulsed laser deposition method at room temperature. We found that the as-grown thin films treated by UAC at 600∘C transformed from a rock-salt to a layered structure. The layer thickness of the later structure increased with increasing UAC pressure. UAC offers a useful tool in oxide thin film research that will contribute to development of new functional oxide materials and adjustment of the atomic ordering of cation materials.