石墨烯/类金刚石碳复合薄膜的电化学沉积及其场发射性能

doi:10.3866/PKU.WHXB201604063

Abstract

Abstract:

Graphene-doped diamond-like carbon(G/a-C:H) nanocomposite films were fabricated using a liquidphase electrochemical method. A nanocomposite film growth mechanism is proposed and discussed. The deposited films were characterized using scanning electron microscopy (SEM), Raman spectroscopy, transmission electron microscopy (TEM), and Fourier transform infrared (FTIR) spectroscopy. The results showed that graphene sheets were homogeneously dispersed in a hydrogenated amorphous carbon (a-C:H) matrix. The deposited G/a-C:H film surface was uniform and smooth. Field emission experiments showed that graphene doping slightly increased the turn-on field, from 4.7 to 5.8 V·μm^-1, and significantly improved the current density, from 384 to 876 μA·cm^-2.

Key words: Diamond-like carbon film, Graphene, Electrodeposition, Field emission

Jin-Long JIANG,Xia ZHANG,Jin-Fang DU,Qiong WANG,Jian-Feng DAI,Zhi-Qiang WEI. Electrochemical Deposition and Field Emission Properties of Graphene/Diamond-Like Carbon Nanocomposite Films[J]. Acta Phys. -Chim. Sin. 2016, 32(7), 1839-1843. doi: 10.3866/PKU.WHXB201604063

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Electrochemical Deposition and Field Emission Properties of Graphene/Diamond-Like Carbon Nanocomposite Films

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