Analytical modeling to study the effect of hydrogen plasma on the growth of multi-walled carbon nanotubes

Frontiers of Physics and Plasma Science

Sharma, U.^1 ; Gupta, N.^1 ; Gupta, R.^1 ; Sharma, S.C.^1

Department of Applied Physics, Delhi Technological University, Delhi

110042, India^1

关键词: Charging rate;    Effect of hydrogen;    Field emitter;    Glow discharge plasmas;    Number density;    Numerical calculation;    Plasma species;    Positively charged ions;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/836/1/012017/pdf
DOI  :  10.1088/1742-6596/836/1/012017

来源: IOP

【 摘 要 】

An analytical model has been developed to study the effect of hydrogen plasma on the growth of Multi-walled Carbon Nanotubes (MWCNTs). The model incorporates the charging rate of the MWCNT, kinetics of plasma species, namely, electrons, positively charged ions, and neutral atoms, growth rate of MWCNT in the presence of CH4/H2plasma. Numerical calculations have been carried out to study the influence of hydrogen number density on the dimensions of MWCNT for typical glow discharge plasma parameters. The impact of hydrogen on the hydrocarbon density has also been studied in the present investigation. The present work can serve as a major tool in better understanding of highly proficient field emitters based on MWCNTs.