Synthesis of High-Entropy Layered Oxide Epitaxial Thin Films: LiCr1/6Mn1/6Fe1/6Co1/6Ni1/6Cu1/6O2,Crystal Growth & Design

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Synthesis of High-Entropy Layered Oxide Epitaxial Thin Films: LiCr1/6Mn1/6Fe1/6Co1/6Ni1/6Cu1/6O2
Crystal Growth & Design ( IF 3.2 ) Pub Date : 2022-01-20 , DOI: 10.1021/acs.cgd.1c01076
Kaidong Wang ₁ , Kazunori Nishio ₁ , Koji Horiba ₂ , Miho Kitamura ₂ , Kurei Edamura ₁ , Daisuke Imazeki ₁ , Ryo Nakayama ₁ , Ryota Shimizu ₁ , Hiroshi Kumigashira _{2,

3} , Taro Hitosugi ₁

Affiliation

High-entropy oxides are emerging materials with unique functionalities. However, while various bulk-type high-entropy oxides have been developed, limited research has been pursued for high-entropy oxide thin films. In this paper, we report the synthesis of LiCr_1/6Mn_1/6Fe_1/6Co_1/6Ni_1/6Cu_1/6O₂ epitaxial thin films with a layered rocksalt structure via the pulsed laser deposition technique. We obtained a single-phase epitaxial thin film by tuning the laser fluence and substrate temperature. In addition, we fabricated a thin-film-type solid-state battery with the epitaxial thin film as a positive electrode. The battery exhibited stable operation. The results of this study provide a platform for synthesizing high-entropy oxide epitaxial thin films with the layered rocksalt structure.

中文翻译：

高熵层状氧化物外延薄膜的合成：LiCr1/6Mn1/6Fe1/6Co1/6Ni1/6Cu1/6O2

高熵氧化物是具有独特功能的新兴材料。然而，虽然已经开发了各种体型高熵氧化物，但对高熵氧化物薄膜的研究有限。在本文中，我们报道了 LiCr _1/6 Mn _1/6 Fe _1/6 Co _1/6 Ni _1/6 Cu _1/6 O _{2的合成。}通过脉冲激光沉积技术获得具有层状岩盐结构的外延薄膜。我们通过调整激光能量密度和衬底温度获得了单相外延薄膜。此外，我们制作了以外延薄膜为正极的薄膜型固态电池。电池表现出稳定运行。本研究结果为合成具有层状岩盐结构的高熵氧化物外延薄膜提供了平台。

更新日期：2022-02-02

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