Department of Material Science, University of Patras, 26500 Patras, Greece.
Molecules. 2022 May 31;27(11):3530. doi: 10.3390/molecules27113530.
The rapidly increased interest in multifunctional nanoelectronic devices, such as wearable monitors, smart robots, and electronic skin, motivated many researchers toward the development of several kinds of sensors in recent years. Flexibility, stability, sensitivity, and low cost are the most important demands for exploiting stretchable or compressible strain sensors. This article describes the formation and characteristics of a flexible, low-cost strain sensor by combining a commercial melamine sponge and a graphene/carbon nanotubes hybrid. The composite that emerged by doping the highly elastic melamine sponge with a highly conductive graphene/carbon nanotubes hybrid showed excellent piezoresistive behavior, with low resistivity of 22 kΩ m. Its function as a piezoresistive material exhibited a high sensitivity of 0.050 kPa that combined with a wide detection area ranging between 0 to 50 kPa.
近年来，人们对多功能纳米电子设备（如可穿戴监视器、智能机器人和电子皮肤）的兴趣迅速增加，这促使许多研究人员致力于开发多种传感器。灵活性、稳定性、灵敏度和低成本是开发可拉伸或可压缩应变传感器的最重要要求。本文通过将商业三聚氰胺海绵和石墨烯/碳纳米管混合体相结合，描述了一种灵活、低成本应变传感器的形成和特性。将高弹性三聚氰胺海绵与高导电性石墨烯/碳纳米管混合体掺杂后形成的复合材料表现出优异的压阻行为，其电阻率低至 22 kΩ m。它作为压阻材料的功能表现出 0.050 kPa 的高灵敏度，结合 0 到 50 kPa 的宽检测范围。
