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Zinc oxide (ZnO) nanoparticles incorporating within polyethylene glycol (PEG) were deposited on the surface of silicone hydrogel through matrix-assisted pulsed laser evaporation (MAPLE). In this process, frozen sample was irradiated under a pulsed Nd: YAG 532nm laser for one hour. The MAPLE process is able to maintain the chemical backbone of polymer, and prevents the nanocomposite coating from contamination...
A surface-conducted field emission cathode with zinc oxide nanotetrapod and nanoparticle with high secondary electron yield is developed in this study. Low-magnification scanning electron microscopy and diode testing are used to characterize the emitter.
In this letter, we report a new kind of hybrid field emitters with a mixture of ZnO nano-tetrapods and MgO particles by a spin-coating method. Due to the excellent field-emission properties of hybrid field emitters, the turn-on electric field (at a current density of 1 ??A/cm2) and the threshold electric field (at a current density of 1 mA/cm2) have been reduced to 0.6 and 0.92 V/??m, respectively...
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