IrO 2
IrO 2
IrO 2
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Field emission J-E curve of <strong>IrO</strong> 2 nanorods (II)<br />
For <strong>IrO</strong> 2 nanorods,<br />
the lowest field<br />
to drive the emission<br />
(E thr ) at 0.7 V/μm<br />
The best values of<br />
carbon nanotube<br />
E thr = 0.6 ~ 0.8 V/μm,<br />
N-doped diamond film<br />
E thr ~ 0.5 V/μm<br />
amorphous carbon film<br />
E thr = 3 ~ 5 V/μm