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ASU MBE Optoelectronics Group

II-VI Semiconductor Solar Cells

II-VI Semiconductor Solar Cells

J.-J. Li, L. et al., Applied Physics Letters 101, 061915-061915. (2012) CdSe/CdTe type-II superlattices grown on GaSb substrates by molecular beam epitaxy are studied using time-resolved and steady-state photoluminescence (PL) spectroscopy at 10 K. A carrier lifetime...
Multijunction solar cell testing

Multijunction solar cell testing

S. H. Lim, et al., Progress in Photovoltaics: Research and Applications, (2011). The effects of luminescence coupling on the external quantum efficiency (EQE) measurement of an InGaP/InGaAs/Ge triple junction solar cell were investigated. A small signal model was used...
GaAs high efficiency ultrathin film solar cells

GaAs high efficiency ultrathin film solar cells

W. Yang, et al., J. Appl. Phys. 115, 203105 (2014). This paper reports the proposal, design, and demonstration of ultra-thin GaAs single-junction solar cells integrated with a reflective back scattering layer to optimize light management and minimize non-radiative...
Theory

Theory

D. Ding, et al., J. Appl. Phys. 110, 123104 (2011). A semi-analytical model is constructed for single- and multi-junction solar cells. Four typical planar structures with the combinations of a smooth/textured top surface and an absorbing/reflecting substrate (or...