Investigation of CuInSe₂ nanowire arrays with core-shell structure electrodeposited at various duty cycles into anodic alumina templates

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• 作者：Yu-Song Cheng^a ; Na-Fu Wang^b ; Yu-Zen Tsai^b ; Jia-Jun Lin^a ; Mau-Phon Houng^a ; ^{mphoung@eembox.ncku.edu.tw}
• 关键词：Nanowire ; CuInSe2 ; Nucleation mechanism ; Core&ndash ; shell
• 刊名：Applied Surface Science
• 出版年：2017
• 出版时间：28 February 2017
• 年：2017
• 卷：396
• 期：Complete
• 页码：631-636
• 全文大小：2783 K
• 卷排序：396

文摘

The present paper reports that CuInSe2 NW arrays were fabricated through pulsed electrode position onto an AAO template with various duty cycles, and a pore-filling ratio of approximately 92% was achieved. GIXRD patterns showed that all CuInSe2 NW arrays were chalcopyrite and SAED images confirmed that the CuInSe2 NWs were polycrystalline. PEDOT/CuInSe2 NW core–shell arrays were fabricated using surfactant-modified CuInSe2 NW surfaces showing the lotus effect. Current–voltage plots revealed that the CuInSe2 NW arrays were p-type semiconductors; moreover, the core–shell structure improved the diode ideality factor from 3.91 to 2.63.