Effect of Growth Modes and Post-Thermal Treatments on the Electrical Properties of the Nonstoichiometric In2O3 Films

IF 0.8 Q3 Engineering
A. K. Akhmedov, E. K. Murliev, A. Sh. Asvarov, V. M. Kanevsky
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引用次数: 0

Abstract

Transparent conducting nonstoichiometric indium oxide (In2O3–х) thin films have been obtained by RF magnetron sputtering of a ceramic target in an inert argon atmosphere. It is shown that, during the nonequilibrium deposition, the substrate temperature and atmospheric composition directly affect the nonstoichiometry of the deposited material and the defect structure of its nanocrystalline state. It has been concluded by analyzing the observed dependences that the nonstoichiometric film growth occurs under the condition of competing processes of heterogeneous indium oxidation and thermal desorption of oxygen from the growing surface, which prevail at a certain substrate temperature. The resulting defect structure ultimately determines the characteristics of carrier transport in the In2O3–х thin film and the thermal stability of its electrical properties.

Abstract Image

生长方式和热处理对非化学计量In2O3薄膜电性能的影响
在惰性氩气气氛下,用射频磁控溅射法制备了透明导电非化学计量氧化铟薄膜。结果表明,在非平衡沉积过程中,衬底温度和大气成分直接影响沉积材料的非化学计量性质及其纳米晶态缺陷结构。通过对观察到的依赖关系的分析,得出非化学计量膜生长发生在非均相铟氧化和生长表面氧热脱附的竞争过程中,这两个过程在一定的衬底温度下普遍存在。由此产生的缺陷结构最终决定了In2O3 - x薄膜中的载流子输运特性及其电性能的热稳定性。
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来源期刊
Nanotechnologies in Russia
Nanotechnologies in Russia NANOSCIENCE & NANOTECHNOLOGY-
CiteScore
1.20
自引率
0.00%
发文量
0
期刊介绍: Nanobiotechnology Reports publishes interdisciplinary research articles on fundamental aspects of the structure and properties of nanoscale objects and nanomaterials, polymeric and bioorganic molecules, and supramolecular and biohybrid complexes, as well as articles that discuss technologies for their preparation and processing, and practical implementation of products, devices, and nature-like systems based on them. The journal publishes original articles and reviews that meet the highest scientific quality standards in the following areas of science and technology studies: self-organizing structures and nanoassemblies; nanostructures, including nanotubes; functional and structural nanomaterials; polymeric, bioorganic, and hybrid nanomaterials; devices and products based on nanomaterials and nanotechnology; nanobiology and genetics, and omics technologies; nanobiomedicine and nanopharmaceutics; nanoelectronics and neuromorphic computing systems; neurocognitive systems and technologies; nanophotonics; natural science methods in a study of cultural heritage items; metrology, standardization, and monitoring in nanotechnology.
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