Development of calcium titanium oxide coated silicon solar cells for enhanced voltage generation capacity
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24 feb 2017
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Publicado en línea: 24 feb 2017
Páginas: 181 - 187
Recibido: 09 ago 2016
Aceptado: 04 feb 2017
DOI: https://doi.org/10.1515/msp-2017-0036
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© 2017 K. Kathirvel, R. Rajasekar, T. Shanmuharajan, Samir Kumar Pal, P. Sathish Kumar, J. Saravana Kumar
This article is distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Percentage difference in cell voltage generation of AR coated solar cell compared to bare cell under controlled atmosphere conditions_
| S. No. | Radiation from light [W/m2] | AR Coating time [min] | Percentage increase in cell voltage (compared to pure silicon solar cell) in temperatures [°C] | ||||
|---|---|---|---|---|---|---|---|
| 35 | 40 | 45 | 50 | 55 | |||
| 10 | 0.6 | 1.4 | 1.8 | 2.9 | 3.6 | ||
| 15 | 0.9 | 1.5 | 2.1 | 3.3 | 4.1 | ||
| 20 | 1.1 | 2.0 | 3.6 | 4.1 | 5.0 | ||
| 1 | 200 | 25 | 1.5 | 2.4 | 3.8 | 4.6 | 3.3 |
| 30 | 1.8 | 2.6 | 4.0 | 5.0 | 6.2 | ||
| 35 | 1.0 | 2.5 | 3.1 | 4.0 | 5.2 | ||
| 40 | 0.8 | 1.2 | 2.1 | 2.3 | 2.6 | ||
| 45 | 0.6 | 0.9 | 1.7 | 1.5 | 1.8 | ||
| 10 | 0.9 | 1.7 | 2.3 | 4.1 | 3.8 | ||
| 15 | 1.3 | 2.1 | 2.6 | 3.6 | 4.5 | ||
| 20 | 1.6 | 2.7 | 3.7 | 4.7 | 5.1 | ||
| 2 | 250 | 25 | 1.8 | 3.0 | 4.1 | 5.1 | 5.6 |
| 30 | 2.3 | 3.3 | 4.5 | 5.5 | 6.6 | ||
| 35 | 1.4 | 2.0 | 3.9 | 4.9 | 6.0 | ||
| 40 | 1.2 | 1.8 | 2.2 | 3.1 | 3.9 | ||
| 45 | 0.9 | 1.3 | 1.7 | 2.1 | 2.5 | ||
| 10 | 1.1 | 2.1 | 2.9 | 3.7 | 4.4 | ||
| 15 | 1.7 | 2.4 | 3.2 | 4.2 | 4.9 | ||
| 20 | 3.0 | 3.1 | 3.9 | 5.2 | 5.7 | ||
| 3 | 300 | 25 | 2.4 | 3.5 | 4.3 | 5.6 | 5.9 |
| 30 | 2.7 | 3.8 | 4.9 | 6.1 | 7.0 | ||
| 35 | 2.1 | 3.3 | 4.2 | 5.7 | 6.2 | ||
| 40 | 1.7 | 2.7 | 3.4 | 4.3 | 5.1 | ||
| 45 | 1.1 | 1.7 | 2.0 | 2.8 | 3.2 | ||
| 10 | 1.4 | 2.4 | 3.1 | 4.1 | 5.0 | ||
| 15 | 2.2 | 2.7 | 3.5 | 4.5 | 5.5 | ||
| 20 | 2.5 | 3.6 | 5.3 | 5.8 | 6.4 | ||
| 4 | 350 | 25 | 2.7 | 4.2 | 5.7 | 6.3 | 6.8 |
| 30 | 2.8 | 4.4 | 6.0 | 6.8 | 7.2 | ||
| 35 | 2.4 | 3.4 | 4.4 | 5.6 | 6.9 | ||
| 40 | 2.0 | 2.8 | 3.6 | 4.5 | 5.7 | ||
| 45 | 1.3 | 2.0 | 2.4 | 3.5 | 3.7 | ||
| 10 | 1.6 | 2.7 | 3.6 | 4.6 | 5.3 | ||
| 15 | 2.3 | 3.5 | 4.4 | 3.7 | 6.0 | ||
| 20 | 2.6 | 3.7 | 5.5 | 6.3 | 7.0 | ||
| 5 | 400 | 25 | 3.2 | 4.3 | 5.8 | 6.9 | 7.4 |
| 30 | 3.3 | 4.7 | 6.3 | 7.4 | 7.9 | ||
| 35 | 2.7 | 4.1 | 5.1 | 6.3 | 7.1 | ||
| 40 | 2.3 | 3.1 | 4.1 | 5.5 | 6.2 | ||
| 45 | 1.4 | 3.2 | 2.6 | 3.7 | 4.5 | ||
| 10 | 2.1 | 3.4 | 4.1 | 5.1 | 5.8 | ||
| 15 | 2.7 | 4.0 | 4.9 | 5.9 | 6.7 | ||
| 20 | 3.0 | 4.6 | 5.8 | 6.6 | 7.4 | ||
| 6 | 450 | 25 | 3.5 | 5.0 | 6.1 | 6.9 | 8.1 |
| 30 | 2.9 | 5.2 | 6.5 | 7.4 | 8.8 | ||
| 35 | 2.7 | 4.3 | 5.5 | 6.3 | 7.4 | ||
| 40 | 2.7 | 3.8 | 5.3 | 6.2 | 6.9 | ||
| 45 | 1.6 | 2.3 | 3.1 | 3.9 | 5.2 | ||
Percentage difference in cell voltage generation of AR coated solar cell compared to uncoated cell under open atmosphere conditions_
| Time interval | Radiation from sun [W/m2] | Percentage increase in cell voltage (compared to pure silicon solar sell) after AR coating time [min]: | |||||||
|---|---|---|---|---|---|---|---|---|---|
| 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | ||
| 10:00 | 626 | 7.2 | 7.9 | 9.1 | 10.1 | 10.3 | 7.7 | 4.2 | 1.5 |
| 10:30 | 837 | 9.3 | 9.9 | 10.7 | 11.1 | 12.5 | 11.5 | 5.3 | 2.2 |
| 11:00 | 985 | 10.6 | 11.6 | 13.1 | 15.4 | 16.2 | 12.4 | 5.7 | 2.7 |
| 11:30 | 1004 | 11.8 | 13.2 | 13.7 | 16.7 | 19.5 | 14.2 | 6.3 | 2.8 |
| 12:00 | 1081 | 13.9 | 15.7 | 19.7 | 24.7 | 27.7 | 15.0 | 6.4 | 2.8 |
| 12:30 | 1115 | 15.0 | 18.5 | 22.5 | 23.3 | 30.3 | 14.9 | 6.7 | 3.1 |
| 13:00 | 1155 | 15.9 | 19.1 | 22.5 | 25.7 | 30.8 | 16.1 | 6.9 | 3.2 |
| 13:30 | 1055 | 14.4 | 16.4 | 20.1 | 21.7 | 24.6 | 16.2 | 4.4 | 2.9 |
| 14:00 | 985 | 10.9 | 12.9 | 15.5 | 17.1 | 16.8 | 12.7 | 5.3 | 2.7 |
| 14:30 | 822 | 8.9 | 9.9 | 10.2 | 10.6 | 10.8 | 5.5 | 3.8 | 2.4 |
| 15:00 | 656 | 7.9 | 8.6 | 9.5 | 10.4 | 11.0 | 5.3 | 3.6 | 1.7 |
| 15:30 | 573 | 7.3 | 8.6 | 9.9 | 10.3 | 10.5 | 4.5 | 2.5 | 1.4 |
| 16:00 | 528 | 6.5 | 7.7 | 8.6 | 9.3 | 10.1 | 4.4 | 2.1 | 1.3 |
Seasonal climatic condition of Erode district, Tamil Nadu State, India_
| Month | February | March | April | May | June |
|---|---|---|---|---|---|
| Record high [°C] | 37.6 | 39.7 | 40.3 | 40.4 | 38.6 |
| Average high [°C] | 33.3 | 35.9 | 36.7 | 35.2 | 32.2 |
| Average low [°C] | 19.5 | 21.3 | 23.4 | 23.5 | 22.4 |
| Record low [°C] | 12.8 | 15.6 | 17.8 | 16.1 | 18.3 |
| Average rainfall [mm] | 13.0 | 15.1 | 48 | 71.2 | 27.4 |
| Average rainy days | 1 | 1 | 3 | 4.2 | 2.7 |
Amounts of Si, Ca, Ti and O elements on the substrate obtained through EDS analysis_
| Element | Atomic | Atomic concentration |
|---|---|---|
| number | [wt. %] | |
| Si | 14 | 46.19 |
| Ca | 20 | 17.23 |
| Ti | 22 | 20.66 |
| O | 8 | 15.93 |
| 100.00 |