Abstract

We demonstrate a practical optoelectronic application of of Er-doped ZnO nanorod arrays (NRAs) synthesized by hydrothermal method serving as an antireflection (AR) coating. Er-doped ZnO NRAs exhibits broadband AR characteristics for unpolarized, TE-polarized, and TM-polarized lights. Due to growth on any surface of devices/substrates with ease, broadband AR characteristics, Er-doped ZnO NRAs can benefit greatly the performance of optoelectronic devices, such as light emitting diodes and solar cells.

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