Optimization of multi quantum well solar cell

• Autorzy: Prażmowska J. , Korbutowicz R.
• Konferencja: Surface Physics and Thin-Films Structure Seminar ; 17-21.05.2005 ; Szklarska Poręba, Poland
• Języki publikacji: EN

Abstrakty

EN

Quantum well solar cell with GaAs wells and AlxGa1-xAs barriers was optimized. Particular emphasis was placed on enhancing the efficiency. Open-circuit voltage, short-circuit current density, fill factor have been also optimized. Many simulations of various structures were carried out. The conversion efficiency exceeding 27% was obtained. The algorithm of structures optimization that gives comprehensive information about solar cells parameters in a short time was shown. Spectral characteristics, efficiency of energy conversion as a function of light concentration, temperature and the geometrical and materials parameters of the solar cells structures were determined. These results are compared with nearly identical p-i-n solar cells: i) the first with /-region made from undoped GaAs (well material) and ii) the second with /-region from A0.1Ga0.9As (barrier material).

Słowa kluczowe

EN

solar cell; quantum well; optimisation; AIIIBV; GaAs; AlGaAs

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2005
• Tom: Vol. 35, nr 3
• Strony: 619--626
• Opis fizyczny: Bibliogr. 8 poz., wykr.

Twórcy

autor

Prażmowska J.

• Faculty of Microsystem Electronics and Photonic, Wrocław University of Technology, Janiszewskiego 11/17, 50-372 Wrocław, Poland

autor

Korbutowicz R.

• Faculty of Microsystem Electronics and Photonic, Wrocław University of Technology, Janiszewskiego 11/17, 50-372 Wrocław, Poland

Bibliografia

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• [2] Rimada J.C., Hernandez L., Modelling of ideal AlGaAs quantum well solar cells, Microelectronics Journal 32(9), 2001, pp. 719-23.
• [3] Barnham K., Ballard I., Barnes J., Connolly J., Griffin P., Kluftinger B., Nelson J., Tsui E., Zachariou a., Quantum well solar cells, Applied Surface Sience 113/114, 1997, pp. 722-33.
• [4] Barnham K.W.J., Duggan G., A new approach to high efficiency m^u^ti-band-gap solar cells, Journal of Applied Physics 67(7), 1990, pp. 3490-3.
• [5] Barnham K., Connolly J., Griffin P., Haarpaintner G., Nelson J., Tsui E., Zachariou A., Osborne J., Button C., Hill G., Hopkinson M., Pate M., Roberts J., Foxon T., Voltage enhancement in quantum well solar cells, Journal of Applied Physics 80(2), 1996, pp. 1201-6.
• [6] Barnham K.W.J., Ballard I., Connolly J.P., Ekins-Daukes N.J., Kluftinger B.G., Nelson J., Rohr C., Quantum weell solar cells, Physica E 14(1-2), 2002, pp. 27-36.
• [7] Ragay F.W., Marti A., Aravjo G.L., Wolter J.H., Experimental analysis of the efficiency of heterostructure GaAs/AlGaAs solar cells, Solar Energy Materials and Solar Cells 40(1), 1996, pp. 5-21.
• [8] Aperathitis E., Varonides A.C., Scott C.G., Sand D., Foukaraki V., Androulidaki M., Hatzopoulos Z., Panayotatos p., Temperature dependence of photocurrent components on enhanced performance GaAs/AlGaAs multiple quantum well solar cells, Solar Energy Materials and Solar Cells 70(1), 2001, pp. 49-69..