| Title |
Enhanced field emission properties of double-walled carbon nanotubes coated with lead selenide nanoparticles |
| Authors |
신동훈(Shin, Dong-Hoon) ; 이철진(Lee, Cheol-Jin) ; 최영민(Choi, Young-Min) ; 김종웅(Kim, Jong-Ung) |
| Keywords |
Carbon Nanotube ; Field Emission ; Lead Selenide ; Nanoparticle |
| Abstract |
We studied on the field emission properties of double-walled carbon nanotubes (DWCNTs) coated with lead selenide (PbSe) nanoparticles. PbSe nanoparticles were uniformly attached on the surface of the DWCNTs by a simple chemical process. The PbSe-coated DWCNTs showed highly increased emission current density and enhanced emission stability over 20 h, compared with raw DWCNTs. We consider that the enhanced field emission properties of PbSe-coated DWCNTs were attributed to the increased field enhancement factor and lowered work function of the emitters. |