Initiator-changed memory type: preparation of end-functionalized polymers by ATRP and study of their nonvolatile memory effects
Department of Polymer Science, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Suzhou 215123, China
b Key Laboratory of Adsorption Technology in Petroleum and Chemical Industry for Wastewater Treatments, Soochow University, 199 Ren'ai Road, Suzhou 215123, China
Polym. Chem. 2014, 5, 752-760
A new hydrazine naphthalimide initiator (NI) was designed and synthesized. Two end functional group polymers NPVCz-1 and NPVCz-2 were prepared by ATRP. We successfully controlled the location of the naphthalimide functional group at one end of the polymer chain. NPVCz-1 and NPVCz-2 were fabricated as films by simple spin-coating and all of them were then prepared as sandwich memory devices ITO/NPVCz-1/Al and ITO/NPVCz-2/Al respectively. According to the measurements, all devices exhibited stable binary flash-type memory effects. In addition, ITO/NPVCz-1/Al and ITO/NPVCz-2/Al exhibited different turn-on threshold voltages of about −2.5 and −1.5 V respectively. It illustrated that NPVCz-2 possessing a larger molecular weight shows lower turn-on threshold voltage due to the lower hole injection barrier, which was related to low-power consumption.

链接:http://pubs.rsc.org/en/content/articlelanding/2014/py/c3py00950e#!divAbstract