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We demonstrate a high‐throughput, solution‐based process for subwavelength surface texturing of a III‐V compound solar cell. A zinc oxide (ZnO) nanoparticle ink is spray‐coated directly on top of a gallium arsenide (GaAs) solar cell. The nanostructured ZnO films have demonstrated antireflection and light scattering properties over the visible/near‐infrared (NIR) spectrum. The results show a broadband spectral enhancement of the solar cell external quantum efficiency (EQE), a 16% enhancement of short circuit current, and a 10% increase in photovoltaic efficiency.
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Kang et al. (2015) studied this question.
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