Tolerance of Corundum‐Structured Tin‐Doped Indium Oxide Thin Films to Gamma‐ray Irradiation

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

Physica Status Solidi B-basic Solid State Physics Pub Date : 2024-09-09 DOI:10.1002/pssb.202400368

Kazuki Shimazoe, Shunsuke Kurosawa, Hiroki Tanaka, Takushi Takata, Hiroyuki Nishinaka

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Abstract

Corundum‐structured Sn‐doped indium oxide (rh‐ITO) is investigated as a novel transparent conductive oxide. Herein, its gamma‐ray tolerance up to a total dose of 77 kGy is examined for potential applications in harsh environments, such as space. The investigations are conducted on rh‐ITO with Sn concentrations of 0 and 5 at%. X‐ray diffraction 2θ‐ω scan analysis reveals that no phase separation occurs due to gamma‐ray irradiation. The carrier concentration in undoped rh‐In2O3 increases after irradiation, indicating that the gamma rays displace the oxygen atoms and form oxygen defects that generate donors. The high visible light transparency of rh‐In2O3 and rh‐ITO is maintained after irradiation. This study demonstrates the high stability of rh‐ITO to gamma‐ray irradiation until 77 kGy dose. This work contributes to the application of rh‐ITO as an electrode in high‐radiation environments.

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刚玉结构掺锡氧化铟薄膜对伽马射线辐照的耐受性

研究人员将刚玉结构掺杂锡的氧化铟（rh-ITO）作为一种新型透明导电氧化物。在此，研究人员考察了其对伽马射线的耐受性（总剂量达 77 kGy），以了解其在太空等恶劣环境中的潜在应用。研究针对 Sn 浓度分别为 0% 和 5% 的 rh-ITO 进行。X 射线衍射 2θ-ω 扫描分析表明，伽马射线辐照不会导致相分离。辐照后，未掺杂的 rh-In2O3 中的载流子浓度增加，这表明伽马射线置换了氧原子并形成了氧缺陷，从而产生了供体。辐照后，rh-In2O3 和 rh-ITO 仍保持较高的可见光透明度。这项研究证明了 rh-ITO 在 77 kGy 剂量之前对伽马射线辐照的高稳定性。这项工作有助于将 rh-ITO 用作高辐射环境中的电极。

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来源期刊

Physica Status Solidi B-basic Solid State Physics 物理-物理：凝聚态物理

CiteScore

3.30

自引率

6.20%

发文量

321

审稿时长

2 months

期刊介绍： physica status solidi is devoted to the thorough peer review and the rapid publication of new and important results in all fields of solid state and materials physics, from basic science to applications and devices. Being among the largest and most important international publications, the pss journals publish review articles, letters and original work as well as special issues and conference contributions. physica status solidi b – basic solid state physics is devoted to topics such as theoretical and experimental investigations of the atomistic and electronic structure of solids in general, phase transitions, electronic and optical properties of low-dimensional, nano-scale, strongly correlated, or disordered systems, superconductivity, magnetism, ferroelectricity etc.