Optical, Electrical Properties and Structure of Multilayer Iron-Doped Indium–Tin Oxide Thin Films Sputtered on Preheated Glass Substrates
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- Ohtsuka Makoto
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University
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- Sergiienko Ruslan
- National Academy of Science of Ukraine, Physico-Technological Institute of Metals and Alloys
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- Petrovska Svitlana
- National Academy of Science of Ukraine, Frantsevich Institute for Problems of Materials Science
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- Nakamura Takashi
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University
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<p>Multilayer iron-doped indium-saving indium–tin oxide (ML ITO50:Fe2O3) thin films with high conductivity and high transmittance in the visible spectrum have been fabricated by sputtering method. Structures consisting of very thin layer of conventional indium tin oxide (90 mass% In2O3–10 mass% SnO2) and iron-doped indium-saving indium–tin oxide layer with reduced content of In2O3 (ITO50:Fe2O3) to 50 mass% are discussed. By optimizing oxygen flow rate in iron-doped indium-saving indium–tin oxide layer, the lowest volume resistivity of 3.78 × 10−4 Ω·cm, mobility of 29.8 cm2/(V·s), carrier concentration of 4.60 × 1020 cm−3 and transmittance larger than 90% in the visible range have been achieved. ML ITO50:Fe2O3 thin films deposited under optimal conditions demonstrated lower volume resistivity and higher transmittance than undoped multilayer indium-saving ITO thin films and iron-doped single-layer thin films obtained under the same oxygen flow rate Q(O2) = 0.1 sccm. ML ITO50:Fe2O3 thin films demonstrated optimal parameters at the lower oxygen flow rate (Q(O2) = 0.1 sccm) than undoped ML ITO50 thin films. ML ITO50:Fe2O3 thin films are crystallized and show In4Sn3O12 structure.</p>
収録刊行物
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 63 (2), 224-231, 2022-02-01
公益社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390290846630769664
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- NII論文ID
- 130008144075
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- NII書誌ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL書誌ID
- 031956505
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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