An analytical model for shear-enhanced adhesiveless transfer printing
An analytical model for shear-enhanced adhesiveless transfer printing
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DOI：
10.1016/j.mechrescom.2012.02.011
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发表时间：
2012-07-01
影响因子：
2.4
通讯作者：
Rogers, John A.
中科院分区：
文献类型：
--
作者：
Cheng, Huanyu;Wu, Jian;Rogers, John A.
转移印刷是在不寻常的衬底上组装微/纳米材料的一种重要技术，在制造生物医学等领域的可伸缩和柔性电子设备方面具有广阔的应用前景。该过程涉及通过弹性印模从其生长(施主)衬底取回结构(例如，微器件)(即，表面有柱子的元件)，然后将它们传送到不同的(接收器)基板上。建立了一个分析力学模型来确定转印剪切增强模式的关键参数。结果表明，拉拔力随桩内剪切应变的增加或印章上剪切位移的增加而线性减小。这一预测与实验结果吻合较好。爱思唯尔有限公司出版。
Transfer printing is an important technique for assembling micro/nanomaterials on unusual substrates, with promising applications in the fabrication of stretchable and flexible electronics designed for use in areas such as biomedicine. The process involves retrieval of structures (e.g., micro-devices) from their growth (donor) substrate via an elastomeric stamp (i.e.. an element with posts on its surface), and then delivers them onto a different (receiver) substrate. An analytical mechanics model is developed to identify the key parameters for a shear-enhanced mode for transfer printing. The results predict that the pull-off force decreases linearly with increasing shear strain in the post, or with shear displacement across the stamp. This prediction agrees well with the experiments. Published by Elsevier Ltd.