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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Laser micromachining of indium tin oxide films on polymer substrates by laser-induced delamination
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Laser micromachining of indium tin oxide films on polymer substrates by laser-induced delamination

机译:激光诱导分层对聚合物基底上的铟锡氧化物薄膜进行激光微加工

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摘要

A Q-switched neodymium : yttrium -aluminium -garnet (Nd : YAG) laser was used to ablate indium tin oxide (ITO) thin films from polyethylene terephthalate substrates. Film damage and partial removal with no evidence of a melt zone was observed above 1.7 J cm(-2). Above the film removal threshold (3.3 J cm(-2)) the entire film thickness was removed without substrate damage, suggesting that ablation was a result of delamination of the film in the solid phase. Measurements of ablated fragment velocities near the ablation threshold were consistent with calculations of velocities caused by stress-induced delamination of the ITO film, except for a high velocity component at higher fluences. Nanosecond time-resolved shadowgraph photography revealed that the high velocity component was a shock wave induced by the rapid compression of ambient air when the film delaminated.
机译:Q开关钕:钇-铝-石榴石(Nd:YAG)激光器用于从聚对苯二甲酸乙二醇酯基底上烧蚀铟锡氧化物(ITO)薄膜。在1.7 J cm(-2)以上观察到膜损坏和部分去除,没有熔融区的迹象。高于薄膜去除阈值(3.3 J cm(-2)),整个薄膜厚度被去除而不会损坏基材,这表明烧蚀是固相中薄膜分层的结果。靠近烧蚀阈值的烧蚀碎片速度的测量与应力引起的ITO膜分层引起的速度计算一致,除了在较高注量下的高速分量外。纳秒级时间分辨阴影摄影显示,当膜分层时,高速分量是由周围空气的快速压缩引起的冲击波。

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