Electron Filling Factor and Sunlight Concentration Effects on the Efficiency of Intermediate Band Solar Cell

For a determined intermediate band position, the effects of electron filling factor and sunlight concentration on the active region thickness and efficiency of the quantum-dot intermediate band solar cell are calculated. For each value of electron filling factor, the maximum point of efficiency obtained and resulted in the optimum thickness of the cell under three different sunlight concentrations. We show the importance of filling factor as a parameter to be more considered. The photon recycling effect eliminated in all calculations.





References:
[1] A. Luque and A. Marti, "Increasing the Efficiency of Ideal Solar Cells
by Photon Induced Transitions at Intermediate Levels", Phys. Rev. Lett,
V. 78, 5014, 1997.
[2] A. Luque, L. Cuadra, and A. Marti, Proc. Conf. Sobre Dispositivos
Electr├│nicos, Spain, Madrid, pp. 363-366, 1999.
[3] A. Marti, L. Cuadra and A. Luque, "Quantum dot intermediate band
solar cell", Proc,28th IEEE Photovoltaic Specialist Conf, AK.
Fairbanks, 2000.
[4] A. Luque, A. Marti, N. Lopez, E. Antolín, E. Cánovas, C. Stanley, C.
Farmer, L. J. Caballero, L. Cuadra, and J.L. Balenzategui, Appl. Phys.
Lett, V. 87, 083505, 2005.
[5] A. Marti, L. Cuadra, A. Luque, Photovoltaics for the 21st Century II,
Proceedings of the International Symposium, The Electrochemical
Society, INC. Pennington, NJ, pp. 46-60, 2001.
[6] A. Marti, L. Cuadra, A. Luque, "Partial Filling of a Quantum Dot
Intermediate Band for Solar Cells", IEEE Trans. Electron. Devices, 48
(10) 2394, 2001.
[7] A. Luque, A. Marti, Prog. Photovoltaics. Res. Appl. 9 (2) 73, 2001.
[8] S. P. Bremner, R. Corkish, C. B. Honsberg, IEEE Trans. Electron.
Device, 46 (10) 932, 1999.
[9] L. Cuadra, A. Marti, A. Luque, Proceedings of the 16th European
Photovoltaic Solar Energy Conference, James & James Ltd. London, pp.
15-21, 2000.
[10] A. Marti, L. Cuadra, A. Luque. "Design constraints of the quantum-dot
intermediate band solar cell,", Physica E, 14, 150 - 157, 2002.