Laser Scribed Porous Graphene on Polyimide Film for Flexible Strain Sensor

Strain sensor is a device that is used to measure electrical resistance change
from the effect of mechanical fundamental. Strain sensors are widely used in structural
health monitoring, wearable electronic, soft robotic and many more. Since the uses of
strain sensors are very significant nowadays, there are a lot of studies in developing
strain sensor recently. However, constrained strain before break, small gauge factor,
leakage of liquid, complex synthesis, time consuming, and high cost has become one
of the drawback in current strain sensor. In this report, a strain sensor is fabricated
using a new nanomaterial found in 2004 which is a graphene. The characteristic of
graphene that have high electrical conductivity, very strong material and high
flexibility characteristics can increase the ability of the graphene strain sensor as a
sensing devices.