H. Lotfi, R. T. Hinkey, L. Li, R. Q. Yang, J F. Klem, J. C. Keay, and M. B. Johnson, “Multi-Stage Photovoltaic Devices with a Cutoff Wavelength of ~3 µm,” The 40th IEEE Photovoltaic Specialists Conference, Denver, CO, June 8-13, 2014.
H. Lotfi, R. T. Hinkey, L. Li, R. Q. Yang, J F. Klem, J. C. Keay, and M. B. Johnson, “Multi-Stage Photovoltaic Devices with a Cutoff Wavelength of ~3 µm,” The 40th IEEE Photovoltaic Specialists Conference, Denver, CO, June 8-13, 2014.
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