• 文献标题:   Edge effect enhanced electron field emission in top assembled reduced graphene oxide assisted by amorphous CNT-coated carbon cloth substrate
  • 文献类型:   Article
  • 作  者:   ROY R, JHA A, BANERJEE D, DAS NS, CHATTOPADHYAY KK
  • 作者关键词:  
  • 出版物名称:   AIP ADVANCES
  • ISSN:   2158-3226
  • 通讯作者地址:   Jadavpur Univ
  • 被引频次:   16
  • DOI:   10.1063/1.4789409
  • 出版年:   2013

▎ 摘  要

In this work a hybrid structure assembly of amorphous carbon nanotubes (a-CNTs) - reduced graphene oxide (RGO) has been fabricated on carbon cloth/PET substrates for enhanced edge effect assisted flexible field emission device application. The carbon nanostructures prepared by chemical processes were finally deposited one over the other by a simple electrophoretic deposition (EPD) method on carbon cloth (CC) fabric. The thin films were then characterized by X-ray diffraction (XRD), Fourier transformed infrared spectroscopy (FTIR), field emission scanning electron microscopy (FESEM) and high resolution transmission electron microscope (HRTEM). Field assisted electron emission measurement was performed on this hybrid structure. It was observed that the hybrid carbon nanostructure showed exceptional field emission properties with outstanding low turn-on and threshold field (E-to similar to 0.26 V mu m(-1), E-th similar to 0.55 V mu m(1)). These observed results are far better compared to standalone and plasma etched edge enhanced RGO systems due to the bottom layer a-CNTs bed which assisted in significant enhancement of edge effect in RGO sheets. Copyright 2013 Author(s). This article is distributed under a Creative Commons Attribution 3.0 Unported License. [http://dx.doi.org/10.1063/1.4789409]