Growth of Core-Shell InP Nanowires for Photovoltaic Application by Selective-Area Metal Organic Vapor Phase Epitaxy
Growth of Core-Shell InP Nanowires for Photovoltaic Application by Selective-Area Metal Organic Vapor Phase Epitaxy
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DOI:
10.1143/apex.2.035004
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发表时间:
2009-03-01
影响因子:
2.3
通讯作者:
Fukui, Takashi
中科院分区:
文献类型:
--
作者:
Goto, Hajime;Nosaki, Katsutoshi;Fukui, Takashi
We report on the formation of core-shell pn junction InP nanowires using a catalyst-free selective-area metalorganic vapor-phase epitaxy (SA-MOVPE) method. A periodically aligned dense core-shell InP nanowire array was fabricated and used in photovoltaic device applications. The device exhibited open-circuit voltage (V-OC), short-circuit current (I-SC) and fill factor (FF) levels of 0.43 V, 13.72 mA/cm(2) and 0.57, respectively, which indicated a solar power conversion efficiency of 3.37% under AM1.5G illumination. This study demonstrates that high quality core-shell structure nanowire fabrication is possible by SA-MOVPE and that the nanowire arrays can be used in integrated nanowire photovoltaic devices. (C) 2009 The Japan Society of Applied Physics DOI: 10.1143/APEX.2.035004