Intermediate band solar cells based on high-quality multiple-bandgap semiconductor epilayers
| Project/Area Number |
24760258
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Electronic materials/Electric materials
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| Research Institution | Saga University |
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Principal Investigator |
TANAKA Tooru 佐賀大学, 工学(系)研究科(研究院), 准教授 (20325591)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 中間バンド型太陽電池 / マルチバンドギャップ / 高不整合材料 / ZnTeO |
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| Research Abstract |
In order to realize intermediate band solar cells (IBSCs) based on highly mismatched alloys which has an intermediate band in the original band gap, growth of high-quality ZnTeO-related epilayers is investigated. Zn1-xCdxTe1-yOy (ZnCdTeO) alloys lattice-matched to ZnTe substrates are successfully grown by controlling the Cd and O content. Photogenerated current by two-step photon absorption is observed in ZnCdTeO-based IBSCs. The effects of Al doping in ZnTeO are also investigated in order to enhance optical absorptions associated with the intermediate band.
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Report
(3 results)
Research Products
(55 results)
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[Journal Article] Band alignment of ZnTe/GaAs heterointerface investigated by synchrotron radiation photoemission spectroscopy2013
Author(s)
Guo, Q., Takahashi, K., Saito, K., Akiyama, H., Tanaka, T., Nishio, M.
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Journal Title
Applied Physics Letters
Volume: 102
Issue: 9
DOI
Related Report
Peer Reviewed
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