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 en
ISSN 2040-3372
期刊性質 國外
收錄於
產學合作
通訊作者
審稿制度
國別 GBR
公開徵稿
出版型式 電子版
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/74846 )

機構典藏連結