1. 40.8% efficient inverted triple-junction solar cell with two independently metamorphic junctions
2. T. Agui, T. Takamoto, and M. Kaneiwa, Proceedings of Third World Conference on Photovoltaic Energy Conversion, Osaka, Japan (IEEE, New York, 2003), p. 670.
3. D. J. Aiken, Proceedings of 28th IEEE Photovoltaic Specialists Conference, Anchorage, Alaska (IEEE, New York, 2000), p. 994.
4. M. Suzuki, “Study on the doping technologies of wide band gap semiconductors for development of light emitting devices,” Ph.D. thesis, Waseda University, 2007.
5. J. F. Geisz, J. M. Olson, and D. J. Friedman, NREL Report No. NREL/CP-520-36991, 2005 (unpublished).