High Field Emission Performance of Needle‐on‐Fiber Hierarchical‐Structure ZnO

Authors: Liu, Yanxia; Xie, Yizhu; Chen, Jiangtao; Liu, Jing; Gao, Caitian; Yun, Chao; Lu, Bingan; Xie, Erqing; Lloyd, I.

Source: Journal of the American Ceramic Society, Volume 94, Number 12, 1 December 2011 , pp. 4387-4390(4)

Publisher: Wiley-Blackwell

Buy & download fulltext article:

OR

Price: $48.00 plus tax (Refund Policy)

Abstract:

Hierarchical‐structure ZnO consisting of ZnO nanoneedles on ZnO nanofibers was fabricated by a two‐step procedure – first electrospinning and then aqueous solution processes. Field emission (FE) property of the needle‐on‐fiber hierarchical‐structure ZnO was tested. The low turn‐on field of the field emission at 4.8 V/μm was obtained with the current density of 10 μA/cm2. The field enhancement factor was estimated as high as 3400. Such high FE performances of the hierarchical‐structure ZnO derived from the tapered‐tip structure of the ZnO nanoneedles, the high aspect ratio of the hierarchical structure and the undulant space distribution of the ZnO nanoneedles. These results would benefit the potential application of the hierarchical‐structure ZnO in cold‐cathode‐based devices.

Document Type: Research Article

DOI: http://dx.doi.org/10.1111/j.1551-2916.2011.04734.x

Publication date: December 1, 2011

Related content

Tools

Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content

Text size:

A | A | A | A
Share this item with others: These icons link to social bookmarking sites where readers can share and discover new web pages. print icon Print this page