High-Resolution Patterning and Transferring of Graphene-Based Nanomaterials onto Tape toward Roll-to-Roll Production of Tape-Based Wearable Sensors
High-Resolution Patterning and Transferring of Graphene-Based Nanomaterials onto Tape toward Roll-to-Roll Production of Tape-Based Wearable Sensors
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DOI：
10.1002/admt.201700223
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发表时间：
2017-12-01
影响因子：
6.8
通讯作者：
Dong, Liang
中科院分区：
文献类型：
--
作者：
Oren, Seval;Ceylon, Halil;Dong, Liang
本文报道了一种简单而通用的方法，将石墨烯基纳米材料图案化并转移到各种类型的胶带上，以实现柔性微米级传感器。该方法包括通过石墨烯悬浮液将石墨烯薄膜滴铸在预图案化的聚二甲基硅氧烷(PDMS)表面上，该预图案化的聚二甲基硅氧烷(PDMS)表面包含负性特征，应用透明胶带从PDMS表面的非图案化区域去除多余的石墨烯，然后将图案化的石墨烯从PDMS表面的负性特征的内部转移到靶带上。最终胶带上转移的石墨烯图案的特征尺寸小到几微米。这种方法很容易实现，但不需要使用昂贵的设备，除了需要包含负特征的PDMS基板。这种方法对于在不同类型的胶带上制作石墨烯基纳米材料的微图案具有很高的通用性。出于应用演示的目的，开发了柔性机械传感器和传感器阵列、智能手套和胶带上的植物叶片传感器，以实现对指示人体运动和植物水分运输行为的重要信号的实时监测。这项技术将为低成本、可扩展和卷对卷生产基于石墨烯的传感器开辟一条新的路线。
This paper reports on a simple and versatile method for patterning and transferring graphene-based nanomaterials onto various types of tape to realize flexible microscale sensors. The method involves drop-casting a graphene film on a prepatterned polydimethylsiloxane (PDMS) surface containing negative features by graphene suspensions, applying Scotch tape to remove the excess graphene from the nonpatterned areas of the PDMS surface, and then transferring the patterned graphene from the inside of the negative features at the PDMS surface onto a target tape. The feature size of transferred graphene patterns on the final tape is as small as a few micrometers. This method is easy to implement, but does not require the use of expensive equipment, except for needing a PDMS substrate containing negative features. This method has a high versatility in producing micropatterns of graphene-based nanomaterials on different types of adhesive tape. For the purpose of application demonstration, flexible mechanical sensors and sensor arrays, smart gloves, and plant leaf sensors on tapes to realize real-time monitoring of important signals indicating human motion and plant water transport behavior have been developed. This technology will open a new route for low-cost, scalable, and roll-to-roll production of graphene-based sensors on tape.