Department of Materials Science and Engineering, National Tsing Hua University , Hsinchu 300, Taiwan, R.O.C.
Institute for Materials Research (IMO), Hasselt University , 3590 Diepenbeek, Belgium.
ACS Appl Mater Interfaces. 2015 Dec 16;7(49):27078-86. doi: 10.1021/acsami.5b10569. Epub 2015 Dec 3.
In the age of hand-held portable electronics, the need for robust, stable and long-life cathode materials has become increasingly important. Herein, a novel heterogranular-structured diamond-gold nanohybrids (HDG) as a long-term stable cathode material for field-emission (FE) display and plasma display devices is experimentally demonstrated. These hybrid materials are electrically conductive that perform as an excellent field emitters, viz. low turn-on field of 2.62 V/μm with high FE current density of 4.57 mA/cm(2) (corresponding to a applied field of 6.43 V/μm) and prominently high lifetime stability lasting for 1092 min revealing their superiority on comparison with the other commonly used field emitters such as carbon nanotubes, graphene, and zinc oxide nanorods. The process of fabrication of these HDG materials is direct and easy thereby paving way for the advancement in next generation cathode materials for high-brightness FE and plasma-based display devices.
在手持便携式电子产品时代，对坚固、稳定和长寿命阴极材料的需求变得越来越重要。在此，本文通过实验证明了一种新型的异质结构金刚石-金纳米杂化材料（HDG）可用作场发射（FE）显示器和等离子体显示设备的长期稳定阴极材料。这些混合材料具有导电性，可用作优异的场发射器，例如，开启场低至 2.62V/μm，场发射电流密度高达 4.57mA/cm²（对应于 6.43V/μm 的外加场），并且寿命稳定性显著提高，持续 1092min，与其他常用的场发射器如碳纳米管、石墨烯和氧化锌纳米棒相比，具有优越性。这些 HDG 材料的制备工艺直接且简单，从而为下一代用于高亮度 FE 和基于等离子体的显示设备的阴极材料的发展铺平了道路。
