Figure 4
From: Field emission luminescence of nanodiamonds deposited on the aligned carbon nanotube array
Scheme of set-up for field emission and electroluminescence measurements (a). I-V curves for CNTs (blue), NDs (red) and the CNT–ND hybrid material (black) measured at 50, 100, 300 and 500 µm (b). Arrows indicate the threshold field. Images of light emission from surface of the CNT–ND hybrid material at electric field from 0 to 15 V/µm (c).
