Effect of Temperature on Electrical Parameters of Phosphorous Spin–on Diffusion of Polysilicon Solar Cells

Azimi-Nam, Siamak; Farhani, Foad

doi:10.30501/jree.2017.70105

Effect of Temperature on Electrical Parameters of Phosphorous Spin–on Diffusion of Polysilicon Solar Cells

Document Type : Research Article

Authors

Siamak Azimi-Nam ¹

Foad Farhani ²

¹ Department of Advanced Materials and Renewable Energy, Iranian Research Organization for Science and Technology (IROST), Tehran, Iran

² Department of Mechanical Engineering, Iranian Research Organization for Science and Technology (IROST), Tehran, Iran

10.30501/jree.2017.70105

Abstract

Effects of temperature on electrical parameters of polysilicon solar cells, fabricated using the
phosphorous spin-on diffusion technique, have been studied. The current density–voltage
characteristics of polycrystalline silicon solar cells were measured in dark at different temperature
levels. For this purpose, a diode equivalent model was used to obtain saturation current densities
measured at the required temperatures. The experimental results showed that the increase in
temperature from 27 to 70˚C produced a rapid increase in the saturation current densities from 0.00003
to 0.0005A. The changes in the open circuit voltage and the short circuit current density were found to
be linear with the temperature variations: about 3 mV/˚C reduction in the open circuit voltage was
observed. Measurements of the short circuit current density revealed a very small dependency of the
current density on the temperature variations. Accordingly, the short circuit current density increased
from 17.8 to 18.4 mA with increase in temperature from 27 to 107˚C. Measurements of the output
power versus load resistance were obtained at different temperature levels. The results showed that the
output power dropped by 30% with temperature rise from 27 to 107˚C.

Keywords

Temperature effect

reverse saturation current

open circuit voltage

Short Circuit Current

Output Power

polysilicon solar cell

1. Wysocki, J.J., Rappaport, P., "Effect of temperature on photovoltaic solar energy”, J. Appl. Phys., Vol. 31, No. 2, (1960), 571–588.

2. Luft, W., “Effect of electron irradiation on N on P silicon solar cells”, Advanced Energy Conversion, Vol. 5, No. 1, (1965), 21–40.

3. Bhaumik, B., Sharan, R., “Temperature effects in Schottky barrier solar cells”, Appl. Phys. Lett., Vol. 29, No. 4, (1976), 257–268.

4. Burgess, E.L., Fossum, J.G., “Performance of n+ - p Silicon solar cells in concentrated sunlight”, IEEE Transaction on Electron Devices, Vol. ED24, No. 4, (1977), 433–438.

5. Agarwal, S.K., Jain, S.C., “Temperature effects in silicon solar cells”, Journal of Solid State Electronics, Vol. 23, (1980), 1021–1028.

6. Karazhanov, S.Zh., “Temperature and doping level dependence of solar cell performance including excitons”, Solar Energy Materials and Solar Cells, Vol. 63, No. 2, (2000), 149–163.

7. Green, M.A., “General temperature dependence of solar cell performance and implications for device modeling”, Progress in Photovoltaics: Research and Applications, Vol. 11, No. 5, (2003), 333–340.

8. Radziemska, E., “Effect of temperature on dark current characteristics of silicon solar cells and diodes”, International Journal of Energy Research, Vol. 30, No. 2, (2003), 127–134.

9. Radziemska, E., “The effect of temperature on power drop in crystalline silicon”, Journal of Renewable Energy, Vol. 28, No. 1, (2003), 1-12.

10. Sabry, M., Ghitas, A.E., “Influence of temperature on methods for determining silicon solar cell series resistance”, Journal of solar Energy Engineering, Vol. 129, No. 3, (2007), 331–335.

11. Singh, P., Singh, S.N., Lal, M., Husain, M., "Temperature dependence of I-V characteristics and performance parameters of silicon solar cell", Solar Energy Materials and Solar Cells, Vol. 92, No. 12, (2008), 1611–1616.

12. Singh, P., Ravindra, N.M., "Temperature dependence of solar cell performance—an analysis", Solar Energy Materials & Solar Cells, Vol. 101, (2010), 36-45.

13. Dubey, S., Sarvaiya, J.N., Seshadri, B., "Temperature Dependent Photovoltaic (PV) Efficiency and Its Effect on PV Production in the World - A Review", PV Asia Pacific Conference 2012, Energy Procedia, Vol. 33, (2013), 311–321.

14. Chander, S., Purohit, A., Sharma, A., Nehra, S.P., Dhaka, M.S., "A study on photovoltaic parameters of mono-crystalline silicon solar cell with cell temperature", Energy Reports, Vol. 1, (2015), 104-109.

15. Karki, I.B., "Effect of Temperature on the I-V Characteristics of a Polycrystalline Solar Cell", Journal of Nepal Physical Society, Vol. 3, No. 1, (2015), 35-40.

16. Azimi-Nam, S., “Electrical parameters of phosphorous spin-on diffusion of polysilicon solar cells” 22nd International Iranian Power System Conference, 98– E-REN–989, Tehran, Iran, (2007).