Atomic scale investigation of interface of photovoltaic cell material
| Project/Area Number |
23656395
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Inorganic materials/Physical properties
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| Research Institution | The University of Tokyo |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | 太陽電池 / 光吸収層 / カルコパイライト型化合物 / 第一原理計算 / 透過型電子顕微鏡 / 粒界 / 空孔 / 構造機能相関 / 電子顕微鏡 / バンドギャップ / CuInSe2 / 原子・電子構造 / EELS / 薄膜 / 無機材料・物性 |
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| Research Abstract |
We investigated atomic structure, band structure, and band bending at the grain boundary of CIS and chalcopyrite materials. By combining first principles band structure calculation, hybrid function calculation, and atomic resolution HAADF-STEM method, we revealed the grain boundary of CIS and related materials (APL 2012). Furthermore, we found that the band structure and bending is closely related to the coordination of atoms at the grain boundary (2014). The vacancy formation behavior was also investigated using the first principles calculation, and we obtained quantitative pictures on the vacancy formation in the grain boundary of CIS and related materials (PRB 2012, JCerJpn 2014).
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Report
(4 results)
Research Products
(118 results)
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[Journal Article] "Atomic resolution chemical bond analysis of oxygen in La2CuO4"2013
Author(s)
M. Haruta, T. Nagai, N. R. Lugg, M. J. Neish, S. D. Findlay, M. Nagao, K. Kurashima, L. J. Allen, T. Mizoguchi, and K. Kimoto
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Journal Title
J. Appl. Phys.,
Volume: 114
Related Report
Peer Reviewed
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[Journal Article] Simultaneous visualization of oxygen vacancies and the accompanying cation shifts in a perovskite oxide by combining annular imaging techniques2012
Author(s)
S, Kobayashi, S, D, Findlay, N, Shibata, T, Hizoguchi, Y. Ikuhara, and T, Yamamoto
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Journal Title
Applied Physics Letters
Volume: 100
Issue: 19
Pages: 193112-193112
DOI
Related Report
Peer Reviewed
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[Journal Article] "Ab-initio multiplet calculation of oxygen vacancy effect on Ti-L2,3 electron energy loss near edge structures of BaTiO3"2011
Author(s)
"S. Ootsuki, H. Ikeno, Y. Umeda, H. Moriwake, A. Kuwabara, O. Kido, S. Ueda, I. Tanaka, Y. Fujikawa, and T. Mizoguchi
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Journal Title
Appl. Phys. Lett
Volume: 99
Related Report
Peer Reviewed
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