Journal
CURRENT APPLIED PHYSICS
Volume 15, Issue 11, Pages 1296-1302Publisher
ELSEVIER
DOI: 10.1016/j.cap.2015.04.011
Keywords
ZnO; Nanowire lines and bundles; Patterns; Field-emission; Template deformation
Funding
- National 973 project from National Basic Research Program of China [2014CB931700]
- National Natural Science Foundation of China [61222403]
- Doctoral Program Foundation from the Ministry of Education of China [20123218110030]
- Fundamental Research Funds for the Central Universities [30920130111017, NE2012004]
- Opened Fund of the State Key Laboratory on Integrated Optoelectronics [IOSKL2012KF06]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
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One-dimensional ZnO materials have been promising for field-emission (FE) application, but how to facially control the alignment of ZnO emitters is still a great challenge especially for patterned display application. Here, we report the fabrication of novel ZnO nanowire (NW) line and bundle arrays for patterned field-electron emitters. The effects of PS template size and heating time on the resulted ZnO nanoarrays were systematically studied. The deformation degree of PS templates was controlled and hence utilized to adjust the alignment of electrochemically deposited ZnO arrays. It was found that the length of NW lines and the density of NW bundles can effectively tuned by the PS template heating time. The optimal FE performance with turn-on electric field as low as of 4.4 V mu m(-1) and the field-enhancement factor as high as of 1450 were achieved through decreasing the screening effect among the patterned field-electron emitters. (C) 2015 Elsevier B.V. All rights reserved.
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