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Progress Towards Enhancing the Performance of c-Si Photovoltaic Devices via Up- and Down-Conversion

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Abstract

Spectral conversion technologies have the ability to improve the performance of photovoltaic (PV) devices by matching the wavelengths of incident light to the bandgap of the semiconducting material. Although significant research has been conducted into the application of both up- and down-conversion to PV – particularly in novel materials, modeling, characterization techniques, and device structures – a realistic device has not yet been realized. This paper reviews progress spectral conversion based on rare-earth (RE) ions, and reports advances in the areas of broadband excitation, absolute quantum photoluminescent yield measurement (PLQY), enhanced absorption and emission, modeling of optimal layer thicknesses, before concluding with the outlook for spectral conversion PV research.

© 2013 Optical Society of America

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