| Budget Amount *help |
¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Outline of Final Research Achievements |
We developed a method to enhance the conversion efficiency of TiO2-nanowire-based dye sensitized solar cells (DSSCs). When SnO2-based transparent conductive electrodes (the most commonly used in DSSC) were replaced with Nb-doped TiO2 transparent conductive electrodes, a substantial increase in short circuit current density was observed. In addition, we also found that surface treatment of TiO2-nanowires with TiCl4 is crucial for the enhancement of both the short circuit current and open circuit voltage. An optimized DSSC exhibited a conversion efficiency of 3.53%. This value is the highest value among the reported values in TiO2-nanowire-based DSSCs.
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