| Budget Amount *help |
¥48,620,000 (Direct Cost: ¥37,400,000、Indirect Cost: ¥11,220,000)
Fiscal Year 2009: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
Fiscal Year 2008: ¥18,720,000 (Direct Cost: ¥14,400,000、Indirect Cost: ¥4,320,000)
Fiscal Year 2007: ¥21,840,000 (Direct Cost: ¥16,800,000、Indirect Cost: ¥5,040,000)
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| Research Abstract |
Novel Si heterojunction solar cells were proposed to improve the energy conversion efficiency of conventional Si solar cells. For p-type Si solar cells with a widegap n-type micorcystalline 3C-SiC as an emitter layer and with an amorphous AlO as a backside passivation layer, an efficiency of 16% was demonstrated for the first time in the world. Furthermore, very high efficiency of 18.5% has been achieved for a novel solar cell with a configuration of n-type microcrystalline Si/undoped-SiO/p-type Si wafer/p-type microcrystalline SiO back contact. Almost all research targets were met by FY2009.
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