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Influence of the Deposition Process on the Band Gap and Electrical Properties of TiO2 Solar Cells

Dr Saad Al- Sabbagh Ass. Prof. Faculty of Engineering – Kufa University Najaf - Iraq. Influence of the Deposition Process on the Band Gap and Electrical Properties of TiO2 Solar Cells. Why Nano Tech Solar Cells: 1- Flexibility . 2- Cheap Price. 3- Easy to Manufacture .

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Influence of the Deposition Process on the Band Gap and Electrical Properties of TiO2 Solar Cells

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  1. DrSaad Al-Sabbagh Ass. Prof. Faculty of Engineering – Kufa University Najaf - Iraq Influence of the Deposition Process on the Band Gap and Electrical Properties of TiO2 Solar Cells

  2. Why Nano Tech Solar Cells: • 1- Flexibility . • 2- Cheap Price. • 3- Easy to Manufacture . • 4- Certain Wavelength Absorption .

  3. Parameters Studied in this Paper : • 1- Deposition Temperature. • 2- Annealing Temperature (After Deposition ) • 3- Water Concentration. • 4- Thickness.

  4. Main Conclusions : 1-Annealing Temperature REDUCES Band Gap Dramatically. 2-Incresing Deposition temperature REDUCES Band Gap. 3-Band Gap INCREASES Linearly with Water Concentration . 4-Thicker Samples Have a Better Short Circuit Current , but Less Open Circuit Voltage . 5-Conversion Efficiency at Higher Degrees is BETTER , Its Peak at Nearly Mid-Range of Visible Region is Promising in Solar Cells Applications. 6-TiO2 Exhibits GOOD Conversion Characteristics at HIGH Temperatures (Deposition & Annealing ) .

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