一种应用于PDP显示单元的CNT辅助电极制备方法及其性能评价

发布时间：2018-01-12 15:44

本文关键词：一种应用于PDP显示单元的CNT辅助电极制备方法及其性能评价　出处：《真空科学与技术学报》2017年01期 　论文类型：期刊论文

【摘要】：建立了一种应用于等离子显示器(PDP)显示单元的碳纳米管(CNT)辅助电极制备工艺方法,创新性提出了场发射作为PDP平板显示的辅助性应用,并对制备的CNT辅助电极样片进行了性能评价。文章通过三维轮廓和SEM微观形貌测试手段,表征工艺过程中CNT辅助电极的宏观尺度和微观形貌。通过拉曼光谱、傅里叶红外光谱、粒径分布和ZETA电位表征与其性能直接相关的体系分散性。通过对荷电盐浓度、电泳电压、电泳时间和阴阳极板间距的系统分析和优化,获得优化电泳参数。通过关键参数对比确定了前后处理工艺及其效果。对CNT辅助电极的场发射性能进行测试,初步评价其辅助性能并考察其与PDP单元制备流程的兼容性。优化工艺制备的CNT辅助电极场发射开启电压在10μA/cm2的电流密度时低至1.2 V/μm。虽然在MgO保护层制备后增大至1.6 V/μm,但仍可保证其作为PDP辅助电极的典型功能。所建立的CNT辅助电极制备方法具备与PDP显示单元制备工艺有良好兼容性。
[Abstract]:A method of preparing carbon nanotube (CNT) -assisted electrode for plasma display unit (PDP) was established, and the auxiliary application of field emission as PDP flat panel display was proposed. The performance of the CNT auxiliary electrode sample was evaluated. The three-dimensional profile and SEM micrograph were used to test the properties of the sample. The macroscopical and microscopic morphology of the CNT auxiliary electrode was characterized by Raman spectroscopy and Fourier transform infrared spectroscopy (FTIR). The particle size distribution and ZETA potential were used to characterize the dispersion of the system which was directly related to its properties. The systematic analysis and optimization of the charged salt concentration, electrophoretic voltage, electrophoretic time and the distance between cathode and anode plates were carried out. The optimized electrophoretic parameters were obtained. The pretreatment process and its effect were determined by comparing the key parameters. The field emission performance of the CNT auxiliary electrode was tested. Preliminary evaluation of its auxiliary performance and investigation of its compatibility with the preparation process of PDP cells. The field emission threshold voltage of the CNT auxiliary electrode prepared by the optimized process is as low as 1.2 at the current density of 10 渭 A / cm ~ 2. V / 渭 m. Although after the preparation of MgO protective layer, it increased to 1. 6 V / 渭 m. However, it can still be guaranteed to be a typical function of PDP auxiliary electrode. The method of preparation of CNT auxiliary electrode has good compatibility with PDP display unit preparation process.
【作者单位】：南京邮电大学通信与信息工程学院;上海交通大学微米纳米加工技术国家级重点实验室;
【基金】：高等学校博士学科点专项科研基金(20120073110061)
【分类号】：TN873;TB383.1
【正文快照】： 性能,一直以来都是平板显示领域值得关注的显示技术之一。通过特殊的电极驱动方法诱导气体放电产生VUV激发荧光粉的方式实现显示,是目前大多数PDP实现高性能显示的工作机理。然而由于PDP放电单元空间狭小(电极间隙在100μm左右),气体放电过程只出现阴极位降区和负辉区,激发荧

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