Investigation of temperature on the field electron emission from flexible N-doped SiC nanoneedles》.pdf

Superlattices and Microstructures 86 (2015) 250–255 Contents lists available at ScienceDirect Superlattices and Microstructures journal homepage: www. /locate/superlattices Investigation of temperature on the field electron emission from flexible N-doped SiC nanoneedles Peng-Zhan Ying a, Shan-Liang Chen b,⇑, Xiao-Long Ren b, Qiang Chen b a School of Material Science and Engineering, China University of Mining and Technology, Xuzhou City 221116, PR China b Institute of Materials, Ningbo University of Technology, Ningbo City 315016, PR China a r t i c l e i n f o a b s t r a c t Article history: With respect to the effect of local field enhancement, fabrication of nanostructures with Received 23 July 2015 clear and sharp tips is critically important for the exploration of field emitters with high Accepted 25 July 2015 performances. In the present work, we report the growth of flexible SiC nanoneedles Available online 27 July 2015 (SiC-NNs) with sharp tips on carbon cloth substrate via catalyst-assisted pyrolysis of a polymeric precursor. The entire structure of the substrate retains its high flexibility after Keywords: the growth of SiC and can even be rolled-up. The as-synthesized SiC-NNs are SiC nanoneedles single-crystalline and grow along the [111] direction with a uniform spatial distribution Flexible field emitters of N d