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Published on: April 25, 2018
Position-controlled III-V compound semiconductor nanowire solar cells by selective-area metal-organic vapor phase
Takashi Fukui1, Masatoshi Yoshimura, Eiji Nakai
1Graduate School of Information Science and Technology, Hokkaido University, N14, W9, Sapporo, 060-0814, Japan. fukui@rciqe.hokudai.ac.jp
Abstract:
We demonstrate position-controlled III-V semiconductor nanowires (NWs) by using selective-area metal-organic vapor phase epitaxy and their application to solar cells. Efficiency of 4.23% is achieved for InP core-shell NW solar cells. We form a 'flexible NW array' without a substrate, which has the advantage of saving natural resources over conventional thin film photovoltaic devices. Four junction NW solar cells with over 50% efficiency are proposed and discussed.

