Investigation of the Electrical and Electronic Properties of Semiconductor Oxide Gas Sensors by Tight-Binding Quantum Calculations

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概要

• 論文の詳細を見る

• Zinc oxide and tin oxide typify a class of materials that can be developed as sensors for detecting various gases. We reported here theoretical studies on electronic structures and electrical conductivities of ZnO as well as SnO_2 by using our original tight-binding quantum chemical method. The calculated electronic structures for perfect zinc oxide and tin oxide are in good agreement with previous theoretical calculations and experimental results. The effect of different intrinsic and extrinsic dopants on the physical properties of these oxides was investigated. It was found that the calculated electrical conductivities are enhanced significantly due to the formation of defect level for the doped oxides. The importance of defects in these oxides can be demonstrated by our method.

• 社団法人電子情報通信学会の論文
• 2005-09-30

著者

• Kumagai M

  Materials And Structures Laboratory Tokyo Institute Of Technology

• Tsuboi Hideyuki

  Department of Cardiology, Ogaki Municipal Hospital

• Del Carpio

  Department Of Applied Chemistry Graduate School Of Engineering Tohoku University

• Miyamoto A

  New Ind. Creation Hatchery Center Tohoku Univ.

• Kawasaki M

  Institute For Materials Research (imr) Tohoku University

• KOYAMA Michihisa

  Department of Applied Chemistry, Graduate School of Engineering, Tohoku University

• MIYAMOTO Akira

  Department of Applied Chemistry, Graduate School of Engineering, Tohoku University

• Kubo Momoji

  Department Of Molecular Chemistry And Engineering Tohoku University

• Kubo Momoji

  Department Of Applied Chemistry Graduate School Of Engineering Tohoku University

• Endou Akira

  Dep. Of Applied Chemistry Graduate School Of Engineering Tohoku Univ.

• ZHU Zhigang

  Department of Applied Chemistry, Tohoku University

• CHUTIA Arunabhiram

  Department of Applied Chemistry, Tohoku University

• Endou Akira

  Institute of Fluid Science, Tohoku University

• Kawasaki Masashi

  Department Of Applied Biological Science Tokyo Noko University

• Tsuboi Hideyuki

  Department Of Applied Chemistry Graduate School Of Engineering Tohoku University

• Miyamoto Akira

  Department Of Applied Chemistry Graduate School Of Engineering Tohoku University

• Koyama Michihisa

  Department Of Applied Chemistry Graduate School Of Engineering Tohoku University

• Kawasaki Masashi

  Riken Advanced Sci. Inst. Saitama Jpn

• Chutia Arunabhiram

  Department Of Applied Chemistry Graduate School Of Engineering Tohoku University

• Delcarpio Carlos

  Department Of Applied Chemistry Graduate School Of Engineering Tohoku University

• Zhu Zhigang

  Department Of Applied Chemistry Graduate School Of Engineering Tohoku University

• Kumagai M

  Department Of Applied Chemistry Graduate School Of Engineering Tohoku University

• Kawasaki Masashi

  Quantum-phase Electronics Center (qpec) And Department Of Applied Physics University Of Tokyo

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