New Electron Field Emission Films Based on Aligned Carbon Nanotube Guests in Liquid Crystalline Polymer Hosts

基于液晶聚合物主体中对齐碳纳米管客体的新型电子场发射薄膜

• 批准号: DP0449692
• 负责人: Em/Prof George Simon
• 金额: $ 42.98万
• 依托单位: Monash University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2004
• 资助国家: 澳大利亚
• 起止时间: 2004-02-03 至 2009-12-14
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP0449692
• 关键词: New; Electron; Field; Emission; Films

This project seeks to develop a new class of electron field emitting nanocomposite consisting of nanotubes in liquid crystalline polymers. Electron emitting materials are in much demand in x-ray and microwave generation, computer displays and low-energy lighting. We utilise the ready alignability of liquid crystalline units in magnetic fields to cause realignment of incorporated carbon nanotubes, followed by polymer solidification to maintain orientation. It involves low temperature processing, contrasting very favourably with current problematic, high temperature processes. This allows materials to be cast on flexible polymer substrates, potentially enabling construction of cathode tubes to replace existing mercury-containing fluorescent lighting.

该项目旨在开发一种新型的电子场发射纳米复合材料，其由液晶聚合物中的纳米管组成。电子发射材料在X射线和微波产生、计算机显示器和低能量照明中有很大的需求。我们利用液晶单元在磁场中的易结晶性来引起并入的碳纳米管的重新排列，然后通过聚合物固化来保持取向。它涉及低温处理，与目前有问题的高温处理相比非常有利。这使得材料可以浇铸在柔性聚合物基底上，从而有可能使阴极管的建造取代现有的含汞荧光灯。