| Budget Amount *help |
¥47,190,000 (Direct Cost: ¥36,300,000、Indirect Cost: ¥10,890,000)
Fiscal Year 2015: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2014: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2013: ¥11,570,000 (Direct Cost: ¥8,900,000、Indirect Cost: ¥2,670,000)
Fiscal Year 2012: ¥24,830,000 (Direct Cost: ¥19,100,000、Indirect Cost: ¥5,730,000)
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| Outline of Final Research Achievements |
In this study, solution-processable bulk hetero-junction (BHJ) thin-film solar cells utilizing liquid crystalline (LC) semiconductors with high carrier mobility have been studied. Efficient synthesis and effective purification of the LC semiconductors were found, and the molecular packing structures and electronic properties were clarified. The mechanism of the carrier transport was investigated by density functional theory. The phase diagrams of the multi-component blend materials were studied, and the appearance of miscibility or phase-separation was discussed. The BHJ solar cells with LC semiconductors were fabricated by printing process, and the optimized condition to obtain an appropriate microscale phase-separation structure was found, resulting in the high photo-conversion efficiency.
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