Carbon Nanotubes exhibit exceptional electrical conductivity,and are ultralight,low density and highly elastic.Carbon Nanotubes exhibit extrme structural flexibility when subjected to large strains and angles without structural failure.This is possible as the vertically aligned Carbon Nanotubes buckle ubder large strains while still maintaining structural intergrity.Carbon Nanotube exhibit supercompressibility when theCarbon Nanotubes are compressed to 15% strain,the Carbon Nanotubes will recover to nearly their orginal length after every cycle in a strong cushioning effect.When the aligned Carbon Nanotubes are repeatedly stressed for a new hundred cycles,the Carbon Nanotubes can recover to nearly theirs original length.

      Very few materials are known to exhibit this behavior.Hence,Carbon Nanotubes seem to be an ideal material for flexible energy storage applications that would benefit from a combination of their lightweight,structural and excellent mechanical properties.In addition,the combination of electrical conductivity chenmical inertness,high conductivity and thermal stability makes them ideal for supercapacotor and battery belectrodes.

      Carbon Nanotubes can transport a significant amount of electic current without the doping problem encountered in silicon-based field -effect transistors becuase of their graphitic nature and becuase the covalent bonds among carbon atoms are much stronger.Carbon Nanotubes are among the most promising materials anticipated to impact future nanotechnology owing to their unique structural and electronic properties,which have gnerated great interest for application in a broad range of potential nanodevices.Around 2000,individual Carbon Nanotubes were recognized as being extremely sensitive chemical sensors toward NO2 NH3 and O2.The combined mechanical strength,semiconductive  electrical properties with very high mobility,and extremely high chemical sensitivity of Carbon Nanotubes have led to the study of their use in flexible chemical sensors.