Photocurrent and photovoltaic characteristics of copper sulfide nanowires grown by a hydrothermal method
2014
Abstract We synthesized p-type copper sulfide (CuS) nanowires by hydrothermal method using a polymer as structure directing agent. Single nanowire devices were then fabricated and hole concentration was measured to be ~4×10 18 cm −3 . Schottky contacts between the nanowires and metal electrodes have been distinctively imaged by a scanning photocurrent microscopic method. As the synthesized CuS nanowires were much longer than the diffusion length, the nanowires were intentionally broken down to demonstrate a photovoltaic device utilizing the Schottky contact with Cu electrodes.
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