H.J. Hovel, R.T. Hodgson, et al.
IEEE T-ED
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.
H.J. Hovel, R.T. Hodgson, et al.
IEEE T-ED
H.J. Hoffmann, J. Woodall
Applied Physics A Solids and Surfaces
H.J. Hovel, R.T. Hodgson, et al.
Solar Energy Materials
H.J. Hovel
Solid-State Electronics