教師資料查詢 | 類別: 期刊論文 | 教師: 葉炳宏 Ping-hung Yeh (瀏覽個人網頁)

標題:Well-aligned ZnO nanowires with excellent field emission and photocatalytic properties
學年100
學期1
出版(發表)日期2011/10/01
作品名稱Well-aligned ZnO nanowires with excellent field emission and photocatalytic properties
作品名稱(其他語言)
著者Chu, Fu-Hsuan; Huang, Chun-Wei; Hsin, Cheng-Lun; Wang, Chun-Wen; Yu, Shih-Ying; Yeh, Ping-Hung; Wu, Wen-Wei
單位淡江大學物理學系
出版者Cambridge: R S C Publications
著錄名稱、卷期、頁數Nanoscale 4(5), pp.1471-1475
摘要Well-aligned ZnO nanowires (NWs) were successfully synthesized on Si(100) by the process of carbothermal reduction and vapor–liquid–solid method. Scanning electron microscopy and transmission electron microscopy results confirmed that ZnO NWs were single crystalline wurtzite structures and grew along the [0001] direction. The influences of substrate temperature and total pressure on the growth were discussed. The well-aligned ZnO NWs show good field emission properties, and the emitter constructed of pencil-like ZnO NWs exhibited a low turn-on field (3.82 V μm−1) and a high field enhancement factor (β = 2303). Finally, we demonstrated that the as-prepared ZnO NWs with small diameter on the substrate have good photocatalytic activity toward degradation of methylene blue. Using ZnO NWs with Au nanoparticles (NPs) would decrease the recombination rate of hole–electron pairs due to the great shift of the Fermi level to the conduction band. Hence, adding Au NPs was a promising method to enhance the photocatalytic performance of ZnO NWs. It is significant that photocatalyst fabricated by ZnO NWs can apply to the degradation of organic pollution, and solve the environmental issues.
關鍵字
語言英文
ISSN2040-3372
期刊性質國外
收錄於
產學合作
通訊作者
審稿制度
國別英國
公開徵稿
出版型式電子版
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