压电波形对喷墨打印电极的调控规律
发布时间：2019-01-27 06:31
【摘要】：压电喷墨打印是制备印刷电子器件的主要手段之一,其墨滴喷射状态直接受压电波形的影响,因而压电波形对于器件打印具有重要意义。本文主要研究了压电波形对薄膜晶体管(TFT)电极打印效果的影响,实验通过改变压电波形的加压速率和脉冲持续时间,打印得到了一系列的电极样品,并对其图形效果及表面粗糙度进行了测量。实验表明,随着加压速率和脉冲持续时间的增大,墨滴喷出动能增大,最终打印的图形效果先改善后恶化,表面粗糙度则随之增大。在加压速率取值为0.08~1.65 V/μs、脉冲持续时间取值为1.216~2.688μs的区间内得到了失真程度较小的电极图形,在加压速率及脉冲持续时间分别为0.25 V/μs、2.688μs及0.65 V/μs、1.600μs时,电极图形化效果较好,表面粗糙度分别为59.04 nm和59.27 nm。通过对压电波形参数的合理设置,能够实现对打印图形效果的优化。
[Abstract]:Piezoelectric ink jet printing is one of the main methods to fabricate printed electronic devices. The spray state of the ink droplets is directly affected by piezoelectric waveforms, so piezoelectric waveforms are of great significance for device printing. In this paper, the effect of piezoelectric waveforms on the printing effect of thin film transistor (TFT) electrodes is studied. A series of electrode samples are obtained by changing the compression rate and pulse duration of piezoelectric waveforms. The figure effect and surface roughness were measured. The experimental results show that with the increase of pressure rate and pulse duration, the kinetic energy of droplet ejection increases, the final printing effect is improved first and then deteriorated, and the surface roughness increases. In the range of 0.08V / 渭 s and 1.216g / 渭 s, the electrode pattern with less distortion was obtained, and the pressure rate and pulse duration were 0.25 V / 渭 s, respectively, and the pulse duration was 1.216V / 渭 s, the pulse duration was 0.25V / 渭 s, and the pulse duration was 0.25V / 渭 s. At 2.688 渭 s and 0.65 V / 渭 s ~ 1.600 渭 s, the surface roughness was 59.04 nm and 59.27 nm., respectively. By setting the parameters of piezoelectric waveform reasonably, we can optimize the effect of printing graphics.
【作者单位】： 华南理工大学材料科学与工程学院高分子光电材料与器件研究所 发光材料与器件国家重点实验室;
【基金】：国家自然科学基金重大集成项目(U1601651) 973国家重点基础研究发展计划(2015CB655004) 国家重点研发计划专项(2016YFB0401504,2016YFF0203603) 广东省自然科学基金(2016A030313459) 广东省科技计划(2014B090915004,2015B090914003,2016A040403037,2016B090907001,2016B090906002) 中央高校基本科研业务费专项资金(2015ZP024,2015ZZ063) 广东省高校珠江学者资助计划(2016)资助项目~~
【分类号】：TN321.5
本文编号：2416009
[Abstract]:Piezoelectric ink jet printing is one of the main methods to fabricate printed electronic devices. The spray state of the ink droplets is directly affected by piezoelectric waveforms, so piezoelectric waveforms are of great significance for device printing. In this paper, the effect of piezoelectric waveforms on the printing effect of thin film transistor (TFT) electrodes is studied. A series of electrode samples are obtained by changing the compression rate and pulse duration of piezoelectric waveforms. The figure effect and surface roughness were measured. The experimental results show that with the increase of pressure rate and pulse duration, the kinetic energy of droplet ejection increases, the final printing effect is improved first and then deteriorated, and the surface roughness increases. In the range of 0.08V / 渭 s and 1.216g / 渭 s, the electrode pattern with less distortion was obtained, and the pressure rate and pulse duration were 0.25 V / 渭 s, respectively, and the pulse duration was 1.216V / 渭 s, the pulse duration was 0.25V / 渭 s, and the pulse duration was 0.25V / 渭 s. At 2.688 渭 s and 0.65 V / 渭 s ~ 1.600 渭 s, the surface roughness was 59.04 nm and 59.27 nm., respectively. By setting the parameters of piezoelectric waveform reasonably, we can optimize the effect of printing graphics.
【作者单位】： 华南理工大学材料科学与工程学院高分子光电材料与器件研究所 发光材料与器件国家重点实验室;
【基金】：国家自然科学基金重大集成项目(U1601651) 973国家重点基础研究发展计划(2015CB655004) 国家重点研发计划专项(2016YFB0401504,2016YFF0203603) 广东省自然科学基金(2016A030313459) 广东省科技计划(2014B090915004,2015B090914003,2016A040403037,2016B090907001,2016B090906002) 中央高校基本科研业务费专项资金(2015ZP024,2015ZZ063) 广东省高校珠江学者资助计划(2016)资助项目~~
【分类号】：TN321.5
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