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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, 华南理工大学材料科学与工程学院,广东 广州,510640
纸质出版日期:2017-5-5,
收稿日期:2016-11-21,
修回日期:2017-2-12,
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宁洪龙, 朱镇南, 陶瑞强等. 压电波形对喷墨打印电极的调控规律[J]. 发光学报, 2017,38(5): 617-622
NING Hong-long, ZHU Zhen-nan, TAO Rui-qiang etc. Regulation Rules of Piezoelectric Waveform on Ink-jet Printing Electrode[J]. Chinese Journal of Luminescence, 2017,38(5): 617-622
宁洪龙, 朱镇南, 陶瑞强等. 压电波形对喷墨打印电极的调控规律[J]. 发光学报, 2017,38(5): 617-622 DOI: 10.3788/fgxb20173805.0617.
NING Hong-long, ZHU Zhen-nan, TAO Rui-qiang etc. Regulation Rules of Piezoelectric Waveform on Ink-jet Printing Electrode[J]. Chinese Journal of Luminescence, 2017,38(5): 617-622 DOI: 10.3788/fgxb20173805.0617.
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/s、脉冲持续时间取值为1.216~2.688 s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/s、2.688 s及0.65 V/s、1.600 s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。
Piezoelectric printing is one of the main processes of printed electronics. In this process
piezoelectric waveform has a direct impact on the spray regime of ink droplets
which will play an important role in the devices printing. In this text
effect of piezoelectric waveform on printing thin film transistor(TFT) electrode was studied. By changing slew rate and duration
the piezoelectric waveform parameters
a series of printing samples were obtained
and their patterning quality and surface roughness were measured. With the increasing of the slew rate and duration
the kinetic energy of the ink droplet increases
the patterning quality improves first and then deteriorates
and the surface roughness of final printing pattern gets higher. TFT electrodes with fine pattern are fabricated when the slew rate is from 0.08 V/s to 1.65 V/s
and the duration is from 1.216 s to 2.688 s. Fine-patterned TFT electrodes with surface roughness of 59.04 nm and 59.27 nm are fabricated when the slew rate and duration are 0.25 V/s
2.688 s and 0.65 V/s
1.600 s
respectively. By adjusting the parameters of piezoelectric waveform
the optimization of printing quality can be achieved.
喷墨打印加压速率脉冲持续时间TFT电极表面粗糙度
ink-jet printingslew ratedurationelectrode of thin film transistorsurface roughness
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