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 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/987654321/74847 )

機構典藏連結