Laser patterning of printed silver for selective lighting of electroluminescence film

作者: Wenhe Feng , Ju Nie Tey , Yin Chi Wan , Xuechuan Shan , Hongyu Zheng

DOI: 10.1016/J.JMAPRO.2019.01.036

关键词: Telecentric lensLaserFiber laserElectrodeMaterials scienceLaser ablationRaster scanElectroluminescenceOptoelectronicsLayer (electronics)

摘要: Abstract We propose a method to use laser pattern 6.6 μm-thick Ag back electrode layer on electroluminescence (EL) film electrically isolate designated regions towards the functionality of selective lighting. The processing system employs 20 W, 1064 nm wavelength, nanosecond-pulsed, master oscillator power amplifier (MOPA) fibre as source. A dynamic focusing configuration is adopted replacement conventional telecentric lens setup for beam and delivery, with focal spot size 33 μm speed high 3 m/s. effects parameters ablated channel width, depth, quality, elemental composition electrical isolation are investigated. It found that higher deposited energy causes kerf width well reproducibility increase, at cost increased chance damage surrounding substrate layer. Based findings, recipe established by producing channels narrow (41.3 ± 0.8) μm without introducing collateral film. Using selected parameter combinations from window, uniformity ablation over 300 × 200 mm2 scanning area examined. Finally, using raster method, lighting 295 × 180 demonstrated.

参考文章(22)
N.G. Semaltianos, C. Koidis, C. Pitsalidis, P. Karagiannidis, S. Logothetidis, W. Perrie, D. Liu, S.P. Edwardson, E. Fearon, R.J. Potter, G. Dearden, K.G. Watkins, Picosecond laser patterning of PEDOT:PSS thin films Synthetic Metals. ,vol. 161, pp. 431- 439 ,(2011) , 10.1016/J.SYNTHMET.2010.12.022
Shih-Feng Tseng, Wen-Tse Hsiao, Kuo-Cheng Huang, Donyau Chiang, Ming-Fei Chen, Chang-Pin Chou, Laser scribing of indium tin oxide (ITO) thin films deposited on various substrates for touch panels Applied Surface Science. ,vol. 257, pp. 1487- 1494 ,(2010) , 10.1016/J.APSUSC.2010.08.080
Jayesh Bharathan, Yang Yang, Polymer electroluminescent devices processed by inkjet printing: I. Polymer light-emitting logo Applied Physics Letters. ,vol. 72, pp. 2660- 2662 ,(1998) , 10.1063/1.121090
Joshua A. Spechler, Craig B. Arnold, Direct-write pulsed laser processed silver nanowire networks for transparent conducting electrodes Applied Physics A. ,vol. 108, pp. 25- 28 ,(2012) , 10.1007/S00339-012-6958-7
Shih-Feng Tseng, Wen-Tse Hsiao, Kuo-Cheng Huang, Donyau Chiang, Electrode patterning on PEDOT:PSS thin films by pulsed ultraviolet laser for touch panel screens Applied Physics A. ,vol. 112, pp. 41- 47 ,(2013) , 10.1007/S00339-012-7172-3
T. Mäkelä, S. Jussila, H. Kosonen, T.G. Bäcklund, H.G.O. Sandberg, H. Stubb, Utilizing roll-to-roll techniques for manufacturing source-drain electrodes for all-polymer transistors Synthetic Metals. ,vol. 153, pp. 285- 288 ,(2005) , 10.1016/J.SYNTHMET.2005.07.140
Marko Pudas, Niina Halonen, Päivi Granat, Jouko Vähäkangas, Gravure printing of conductive particulate polymer inks on flexible substrates Progress in Organic Coatings. ,vol. 54, pp. 310- 316 ,(2005) , 10.1016/J.PORGCOAT.2005.07.008
Seung Hwan Ko, Heng Pan, Daeho Lee, Costas P. Grigoropoulos, Hee K. Park, Nanoparticle Selective Laser Processing for a Flexible Display Fabrication Japanese Journal of Applied Physics. ,vol. 49, pp. 05EC03- ,(2010) , 10.1143/JJAP.49.05EC03
Qiumei Bian, Xiaoming Yu, Baozhen Zhao, Zenghu Chang, Shuting Lei, Femtosecond laser ablation of indium tin-oxide narrow grooves for thin film solar cells Optics & Laser Technology. ,vol. 45, pp. 395- 401 ,(2013) , 10.1016/J.OPTLASTEC.2012.06.018