Core-Shell Structure of a Silicon NanorodCarbon Nanotube Field Emission Cathode

الملخص EN

A novel core-shell structure of silicon nanorods/carbon nanotubes (SiNRs/CNTs) is developed for use in field emission cathodes.

The CNTs were synthesized on SiNRs, using the Ag-assisted electroless etching technique to form the SiNRs/CNT core-shell structure.

This resulting SiNRs/CNT field emission cathode demonstrated improved field emission properties including a lower turn-on electric field Eon (1.3 V/μm, 1 μA/cm2), a lower threshold electric field Eth (1.8 V/μm, 1 mA/cm2), and a higher enhancement factor β (2347).

These superior properties indicate that this core-shell structure of SiNRs/CNTs has good potential in field emission cathode applications.