具有金属栅的四角状氧化锌纳米针电子场发射特性

Field-emission Triode of Tetrapod-like ZnO Film Using Metal Mesh

以高纯锌粉为原料,采用气相反应法制备了四角状氧化锌纳米针。利用丝网印刷技术结合光刻工艺组装金属网前栅三极结构场致发射显示器件。场发射测试结果表明,器件具有明显的栅控特性。器件的开启栅压为270V,当栅极电压为600V时,阳极电流高达2.75mA,栅极漏流仅为0.43mA,测量的峰值亮度为2300cd/m2。

Using Zn powder as the raw material,Tetrapod-like ZnO nanoneedles with controllable morphology and size were successfully prepared by chemical vapor deposition.A screen printed normal-gated triode with Tetrapod-like ZnO nanoneedles field emitters is demonstrated.Field emission measurements show that the Tetrapod-like ZnO nanoneedles FED triode devices posses a good field emission property.The turn-on voltage is 270 V.An anode current of 2.75 mA and a gate current of 0.43 mA are extracted at a gate voltage of 600 V with a brightness of 2 300 cd/m2.