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:High-yield synthesis of ZnO nanowire arrays and their opto-electrical properties
學年100
學期1
出版(發表)日期2011/10/01
作品名稱High-yield synthesis of ZnO nanowire arrays and their opto-electrical properties
作品名稱(其他語言)
著者Kao, Chen-Yen; Hsin, Cheng-Lun; Huang, Chun-Wei; Yu, Shih-Ying; Wang, Chun-Wen; 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.1476-1480
摘要In this article, ZnO nanostructures were synthesized via the hydrothermal method which used ZnCl2 and HMTA mixed solution as the precursor. A multistep growth was adopted to improve the growth restriction of a closed system, not only the length but also the aspect ratio were increased with steps of growth, and the shape of nanorods maintained integrity. Furthermore, photoluminescence spectra which have the near-band-edge-emission (3.37 eV) and defect-related emission show the optical properties of ZnO nanostructures. The defect-related emission intensity was greatly enhanced with the increasing surface area of ZnO nanowires. The level of the OH group was attributed to the yellow-light emission (580 nm) and the red-shift phenomenon. In addition, we fabricated two types of ultraviolet photodetectors: a single nanowire device and a nanowire-array device, operating at a low bias (less than 5 mV). With the lower energy consumption and the weaker persistent photoconductive effect, our ultraviolet photodetectors have better performance, exhibiting a short response time and higher sensitivity.
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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