2017 Fiscal Year Final Research Report
Development of high efficiency perovskite/Si tandem solar cells
| Project/Area Number |
26709075
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Partial Multi-year Fund |
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| Research Field |
Energy engineering
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2018-03-31
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| Keywords | タンデム太陽電池 / ペロブスカイト太陽電池 / シリコン太陽電池 |
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| Outline of Final Research Achievements |
To realize high efficiency solar cell, fabrication techniques of perovskite / crystalline silicon tandem solar cell were investigated. We developed a device simulation model to optimize the thickness of the perovskite layer. We also investigated the properties of CH3NH3PbI3-xClx films deposited by the vapor evaporation to optimize the evaporation condition. We finally obtained a CH3NH3PbI3-xClx film with a carrier lifetime of 99 ns (PL measurement) and a photoconductivity (under illumination with a solar simulator) of 0.0005 S/cm. We also developed a tunnel recombination layer that connects the top cell and the bottom cell of a tandem solar cell, and clarified that the stack structure of n-type microcrystalline silicon and p-type nitrogen doped CuO2 shows good characteristics.
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| Free Research Field |
光電変換材料
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