Electron Field Emission Enhancement of Vertically Aligned Ultrananocrystalline Diamond-Coated ZnO Core–Shell Heterostructured Nanorods
學年 102
學期 1
出版（發表）日期 2014-01-01
作品名稱 Electron Field Emission Enhancement of Vertically Aligned Ultrananocrystalline Diamond-Coated ZnO Core–Shell Heterostructured Nanorods
作品名稱（其他語言）
著者 Kamatchi Jothiramalingam Sankaran; Manekkathodi Afsal; Lou, Shiu-Cheng; Chen, Huang-Chin; Chen, Chu-lung; Lee, Chi-Young; Chen, Lih-Juann; Tai, Nyan-Hwa; Lin, I-Nan
單位 淡江大學物理學系
出版者 Weinheim: Wiley - V C H Verlag GmbH & Co. KGaA
著錄名稱、卷期、頁數 Small 10(1), pp.179–185
摘要 Enhanced electron field emission (EFE) behavior of a core–shell heterostructure, where ZnO nanorods (ZNRs) form the core and ultrananocrystalline diamond needles (UNCDNs) form the shell, is reported. EFE properties of ZNR-UNCDN core–shell heterostructures show a high emission current density of 5.5 mA cm−2 at an applied field of 4.25 V μm−1, and a low turn-on field of 2.08 V μm−1 compared to the 1.67 mA cm−2 emission current density (at an applied field of 28.7 V μm−1) and 16.6 V μm−1 turn-on field for bare ZNRs. Such an enhancement in the field emission originates from the unique materials combination, resulting in good electron transport from ZNRs to UNCDNs and efficient field emission of electrons from the UNCDNs. The potential application of these materials is demonstrated by the plasma illumination measurements that lowering the threshold voltage by 160 V confirms the role of ZNR-UNCDN core–shell heterostructures in the enhancement of electron emission.
關鍵字 core–shell heterostructures; ultrananocrystalline diamond needles; graphite layer; ZnO nanorods; electron field emission; plasma illumination
語言 en_US
ISSN 1613-6810 1613-6829
期刊性質 國外
收錄於
產學合作
通訊作者 Lin, I-nan
審稿制度
國別 DEU
公開徵稿
出版型式 紙本 電子版
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