Daniel J. Friedman

Band Anticrossing in GaInNAs Alloys

W. Walukiewicz, Joel W. Ager, E. E. Haller et al. · Physical Review Letters · 1999 · 1.6K citations

Natural Sciences, Materials Science, Physics +15

A 28-GHz 32-Element TRX Phased-Array IC With Concurrent Dual-Polarized Operation and Orthogonal Phase and Gain Control for 5G Communications

Bodhisatwa Sadhu, Yahya Tousi, Joakim Hallin et al. · IEEE Journal of Solid-State Circuits · 2017 · 567 citations

Engineering, Electrical Engineering, Antennas +16

40.8% efficient inverted triple-junction solar cell with two independently metamorphic junctions

John F. Geisz, Daniel J. Friedman, Jas S. Ward et al. · Applied Physics Letters · 2008 · 480 citations

Engineering, Materials Engineering, Materials Science +16

1-eV solar cells with GaInNAs active layer

Daniel J. Friedman, John F. Geisz, Sarah Kurtz et al. · Journal of Crystal Growth · 1998 · 418 citations

Engineering, Electrical Engineering, Materials Science +14

High-efficiency GaInP∕GaAs∕InGaAs triple-junction solar cells grown inverted with a metamorphic bottom junction

John F. Geisz, Sarah Kurtz, M. W. Wanlass et al. · Applied Physics Letters · 2007 · 397 citations

Engineering, Electrical Engineering, Materials Science +17