A BIPOLAR STRAIN SENSOR HAVING CARBON NANOTUBE NETWORK FILM

摘要

The present invention relates to a bipolar strain sensor having a carbon nanotube (CNT) network film on a flexible substrate and a manufacturing method thereof. The bipolar strain sensor of the present invention can electrically detect and measure the size and orientation of the strain by applying metallic carbon nanotubes and the semiconducting carbon nanotubes, which are randomly arranged and connected, on one surface of the flexible substrate. Moreover, the bipolar strain sensor of the present invention has an advantage of being mass-manufactured at low cost through an easy and simple process and of being used as a chemical sensor capable of electrically detecting the presence and concentration of certain chemicals.