Abstract

Energy conversion efficiencies of 18% and 19.4% at 0.1 W cm −2 and 1 W cm −2 respectively were measured for a luminescent solar concentrator cell under an air mass one solar spectrum. This cell was designed for operation under illumination of 600 nm wavelength and 1 W cm −2. From these results and spectral response data an efficiency of 26% can be projected for illumination at 600 nm. This agrees well with computer code calculations of 28%. The substrate doping level, cell grid pattern, minority carrier lifetime and antireflection coating properties were studied to optimize the cell performance for 600 nm and longer wavelengths.

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