Core-Shell Structure of a Silicon Nanorod/Carbon Nanotube Field Emission Cathode. (1st November 2011)

• Record Type: Journal Article
• Authors: Huang, Bohr-Ran; Yang, Ying-Kan; Lin, Tzu-Ching; Yang, Wen-Luh
• Other Names: Luo Linbao Academic Editor.
• Is Part Of: Journal of nanomaterials. Volume 2012(2012)
• Publication Date: 2011-11-01
• Subjects: Nanostructured materials -- Periodicals; Nanotechnology -- Periodicals; Nanomatériaux; Nanostructured materials; Nanotechnology; Nanostructures; Nanotechnology; Periodicals; Fulltext; Internet Resources; Periodicals; 620.115
• DOI: 10.1155/2012/369763
• Languages: English
• ISSNs: 1687-4110

Abstract

Abstract : A novel core-shell structure of silicon nanorods/carbon nanotubes (SiNRs/CNTs) is developed for use in field emission cathodes. The CNTs were synthesized on SiNRs, using the Ag-assisted electroless etching technique to form the SiNRs/CNT core-shell structure. This resulting SiNRs/CNT field emission cathode demonstrated improved field emission properties including a lower turn-on electric field E on (1.3 V/μm, 1 μA/cm 2 ), a lower threshold electric field E th (1.8 V/μm, 1 mA/cm 2 ), and a higher enhancement factor β (2347). These superior properties indicate that this core-shell structure of SiNRs/CNTs has good potential in field emission cathode applications.