Abstract
A dye-sensitized solar cell based on nanostructure TiO2 and PCBM:P3HT blend was fabricated and the photovoltaic and impedance spectroscopy properties of the solar cell were investigated. The solar cell gives a short circuit current density of 0.75 mA/cm2 and an open circuit voltage of 0.60 V under AM1.5. The photovoltage of the solar cell was greatly enhanced by PCBM:P3HT blend. The capacitance-voltage, the conductance-voltage, the series resistances-voltage characteristics of the solar cell were measured in a wide range of frequency for the first time for DSSC applications. The capacitance-voltage shows a behavior from the positive to negative capacitance due to injection of electrons from the FTO electrode into TiO2. It is evaluated that the photovoltaic performance of the dye-sensitized solar cell can be improved using various organic semiconductors.
| Original language | English |
|---|---|
| Pages (from-to) | 1299-1305 |
| Number of pages | 7 |
| Journal | Synthetic Metals |
| Volume | 161 |
| Issue number | 13-14 |
| DOIs | |
| State | Published - Jul 2011 |
| Externally published | Yes |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Keywords
- Impedance spectroscopy
- PCBM:P3HT
- Photovoltaic properties
- Positive and negative capacitance
- TiO nanostructure
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