Abstract
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.
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