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Shuping Pang, Shubin Yang, Xinliang Feng and Klaus Müllen Coplanar Asymmetrical Reduced Graphene Oxide–Titanium Electrodes for Polymer Photodetectors Advanced Materials 24

Article first published online: 20 FEB 2012 | DOI: 10.1002/adma.201104211

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Narrow gaps and a “built-in” potential originating from the different work functions of reduced graphene oxide (RGO) and titanium electrodes are used to explain the improved photosensitivity of the poly(3-hexylthiophene) photodetectors with asymmetrical RGO-Ti electrodes presented here (see figure) compared to those based on symmetrical electrodes. Easy processing, high photosensitivity, high on/off ratio, and low energy consumption contribute to the promising potential of coplanar asymmetrical electrodes in the field of photoelectric devices.

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