Cracking of Aluminum and Silver Alloy Thin Films on Polymer Thin Films
Cracking of Aluminum and Silver Alloy Thin Films on Polymer Thin Films
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聚合物薄膜上铝合金和银合金薄膜的开裂
DOI：
10.11395/aem.4.0_115
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
I. S. Gruescu and Y. Utsumi
中科院分区：
文献类型：
--
作者：
T. Kobayashi;H. Furumoto;S. Nagasawa;H. Kanematsu;I. S. Gruescu and Y. Utsumi
通过对透明导电聚合物薄膜施加拉伸应变并监测薄膜电阻，研究了在柔性聚萘二甲酸乙二醇酯（PEN）衬底上制备的透明导电聚合物薄膜、铝和银合金薄膜的临界开裂应变。本研究的最终目标是提高有机器件、柔性显示器和柔性有机发光二极管（OLED）的柔性。结果，发现透明导电聚合物PEDOT：PSS膜不引起破裂，并且理论上电阻增加约10%的应变。对于两层薄膜，在约4%的应变下开始破裂，然后电阻开始增加。分析认为，开裂是由应变引起的，并形成网状开裂。此外，它被发现的裂纹的方面取决于底层暗示的膜的延展性和附着力的效果。
Critical cracking strain of transparent conductive polymer thin films, aluminum and silver alloy thin films on polymer thin films prepared on a flexible polyethylene naphthalate (PEN) substrate was investigated by applying tensile strain to the specimens with monitoring the electric resistance of the thin films. The final target of the present research is the improvement of flexibility of organic devices, flexible displays and flexible organic light emitting diodes (OLEDs). As a result, it was found that transparent conductive polymer PEDOT: PSS films do not cause cracking and the electric resistance increased theoretically by around 10% of strain. Regarding the two layer thin films, cracking initiated at a strain of around 4% then the electric resistance started increasing. The reason has suggested that cracking was caused by the strain resulting in cracking with forming network shape. Furthermore it was found that the aspect of the cracking depends on the under-layers suggesting the effect of ductility and adhesion of the films.
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