【摘要】：壓電噴墨打印是制備印刷電子器件的主要手段之一,其墨滴噴射狀態(tài)直接受壓電波形的影響,因而壓電波形對于器件打印具有重要意義。本文主要研究了壓電波形對薄膜晶體管(TFT)電極打印效果的影響,實(shí)驗通過改變壓電波形的加壓速率和脈沖持續(xù)時間,打印得到了一系列的電極樣品,并對其圖形效果及表面粗糙度進(jìn)行了測量。實(shí)驗表明,隨著加壓速率和脈沖持續(xù)時間的增大,墨滴噴出動能增大,最終打印的圖形效果先改善后惡化,表面粗糙度則隨之增大。在加壓速率取值為0.08~1.65 V/μs、脈沖持續(xù)時間取值為1.216~2.688μs的區(qū)間內(nèi)得到了失真程度較小的電極圖形,在加壓速率及脈沖持續(xù)時間分別為0.25 V/μs、2.688μs及0.65 V/μs、1.600μs時,電極圖形化效果較好,表面粗糙度分別為59.04 nm和59.27 nm。通過對壓電波形參數(shù)的合理設(shè)置,能夠?qū)崿F(xiàn)對打印圖形效果的優(yōu)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.
【作者單位】： 華南理工大學(xué)材料科學(xué)與工程學(xué)院高分子光電材料與器件研究所 發(fā)光材料與器件國家重點(diǎn)實(shí)驗室;
【基金】：國家自然科學(xué)基金重大集成項目(U1601651) 973國家重點(diǎn)基礎(chǔ)研究發(fā)展計劃(2015CB655004) 國家重點(diǎn)研發(fā)計劃專項(2016YFB0401504,2016YFF0203603) 廣東省自然科學(xué)基金(2016A030313459) 廣東省科技計劃(2014B090915004,2015B090914003,2016A040403037,2016B090907001,2016B090906002) 中央高�；究蒲袠I(yè)務(wù)費(fèi)專項資金(2015ZP024,2015ZZ063) 廣東省高校珠江學(xué)者資助計劃(2016)資助項目~~
【分類號】：TN321.5

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本文編號：2416009