title: High temperature polyimide containing anthracene moiety and its structure, interface, and nonvolatile memory behavior.
abstract: A high temperature polyimide bearing anthracene moieties, poly(3,3'-di(9-anthracenemethoxy)-4,4'-biphenylene hexafluoroisopropylidenediphthalimide) (6F-HAB-AM PI) was synthesized. The polymer exhibits excellent thermal stability up to around 410 °C. This polymer is amorphous but orients preferentially in the plane of nanoscale thin films. In device fabrications of its nanoscale thin films with metal top and bottom electrodes, no diffusion of the metal atoms or ions between the polymer and electrodes was found; however, the aluminum bottom electrode had somewhat undergone oxide layer (about 1.2 nm thick) formation at the surface during the post polymer layer formation process, which was confirmed to have no significant influence on the device performance. The polymer thin film exhibited excellent unipolar and bipolar switching behaviors over a very small voltage range, less than ±2 V. Further, the PI films show repeatable writing, reading, and erasing ability with long reliability and high ON/OFF current ratio (up to 10(7)) in air ambient conditions as well as even at temperatures up to 200 °C.
authors.affiliation: Division of Advanced Materials Science, Department of Chemistry, Pohang Accelerator Laboratory, Center for Electro-Photo Behaviors in Advanced Molecular Systems, BK School of Molecular Science, and Polymer Research Institute, Pohang University of Science and Technology (POSTECH), Pohang 790-784, Republic of Korea.
authors.forename: Samdae
authors.initials: S
authors.lastname: Park
authors.forename: Kyungtae
authors.initials: K
authors.lastname: Kim
authors.forename: Dong Min
authors.initials: DM
authors.lastname: Kim
authors.forename: Wonsang
authors.initials: W
authors.lastname: Kwon
authors.forename: Junman
authors.initials: J
authors.lastname: Choi
authors.forename: Moonhor
authors.initials: M
authors.lastname: Ree
mesh_terms: D000873:Anthracenes / Q000737:chemistry* / Q000528:radiation effects; D016248:Computer Storage Devices; D004574:Electromagnetic Fields; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006358:Hot Temperature; D008422:Materials Testing; D012117:Resins, Synthetic / Q000737:chemistry* / Q000528:radiation effects; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*
chemical_list: D000873:Anthracenes; D012117:Resins, Synthetic; C029945:polyimide resin; C034020:anthracene