| Budget Amount *help |
¥15,860,000 (Direct Cost: ¥12,200,000、Indirect Cost: ¥3,660,000)
Fiscal Year 2016: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2015: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2014: ¥10,140,000 (Direct Cost: ¥7,800,000、Indirect Cost: ¥2,340,000)
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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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