Organic bistable memory device from natural rubber (cis 1,4 polyisoprene)/fullerene nanocomposite thin films
Memory devices based on C60 fullerene molecules and a polydiene, cis 1,4 polyisoprene (natural rubber) are described and their current bistability and switching characteristics during writereaderase cycles are discussed. It is found that natural rubber nanocomposite with a fullerene content even as low as 0.1% exhibit bistability and switching behavior. Multiple tunneling and coulomb blockade effect along with dipolar carrier trapping are identified as the possible reasons for this current bistability.
bistability memory polyisoprene fullerene nanocomposite negative differential resistance