S. Chang, I.M. Vitomirov, et al.
Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures
High-efficiency pGa1-xAlxAs, nGaAs solar cells are made by isothermally soaking n-GaAs substrates in an undersaturated Zn-doped GaAlAs melt. This one-step growth procedure produces a graded band gap pGa1-xAlxAs layer 0.2-0.4 μm thick. Efficiencies of 18.5% AM0 and 21.9% AM1 have been measured. © 1990.
S. Chang, I.M. Vitomirov, et al.
Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures
M.H. Pilkuhn, H. Rupprecht, et al.
Proceedings of the IEEE
P.E. Batson, K.L. Kavanagh, et al.
Ultramicroscopy
Gerald Burns, C.R. Wie, et al.
Applied Physics Letters