Journal
APPLIED PHYSICS LETTERS
Volume 90, Issue 21, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2742334
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Funding
- Engineering and Physical Sciences Research Council [EP/D059860/1, GR/S81933/01] Funding Source: researchfish
- EPSRC [EP/D059860/1] Funding Source: UKRI
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Photon recycling in strain-balanced quantum well solar cells grown on distributed Bragg reflectors has been observed as a suppression of the dark current and a change in electroluminescence spectra. Comparing devices grown with and without distributed Bragg reflectors we have demonstrated up to a 33% reduction in the ideality n=1 reverse saturation current. Furthermore, to validate the observations we demonstrate how both the measured dark currents and electroluminescence spectra fit very well to a photon recycling model. Verifying our observations with the model then allows us to calculate optimized device designs. (c) 2007 American Institute of Physics.
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