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Letter

Nature Materials 6, 413–417 (1 June 2007) | doi:10.1038/nmat1903

A large-area wireless power-transmission sheet using printed organic transistors and plastic MEMS switches

Tsuyoshi Sekitani , Makoto Takamiya , Yoshiaki Noguchi , Shintaro Nakano , Yusaku Kato , Takayasu Sakurai & Takao Someya

The electronics fields face serious problems associated with electric power; these include the development of ecologically friendly power-generation systems and ultralow-power-consuming circuits. Moreover, there is a demand for developing new power-transmission methods in the imminent era of ambient electronics, in which a multitude of electronic devices such as sensor networks will be used in our daily life to enhance security, safety and convenience.