Synthesis, Characterization, and Nonvolatile Ternary Memory Behavior of a Larger Heteroacene with Nine Linearly Fused Rings and Two Different Heteroatoms

Pei-Yang Gu †‡, Feng Zhou †, Junkuo Gao ‡, Gang Li ‡, Chengyuan Wang ‡, Qing-Feng Xu †, Qichun Zhang *‡(张其春), and Jian-Mei Lu *† （路建美）

^† College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China

^‡ School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore

J. Am. Chem. Soc. 2013, 135, 14086–14089.

To achieve ultrahigh density memory devices with the capacity of 3ⁿ or larger, organic materials with multilevel stable states are highly desirable. Here, we reported a novel larger stable heteroacene, 2,3,13,14-tetradecyloxy-5,11,16,22-tetraaza-6,10,17,21-tetrachloro-7,9,18,20-tetra oxa-8,19-dicyanoenneacene (CDPzN), which has two different types of heteroatoms (O and N) and nine linearly fused rings. The sandwich-structure memory devices based on CDPzN exhibited excellent ternary memory behaviors with high ON2/ON1/OFF current ratios of 10^6.3/10^4.3/1 and good stability for these three states.

链接： //pubs.acs.org/doi/abs/10.1021/ja408208c