A Resistance-Switchable and Ferroelectric Metal鈥揙rganic Framework

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• 作者：Liang Pan ; Gang Liu ; Hui Li ; Sheng Meng ; Lei Han ; Jie Shang ; Bin Chen ; Ana E. Platero-Prats ; Wei Lu ; Xiaodong Zou ; Run-Wei Li
• 刊名：Journal of the American Chemical Society
• 出版年：2014
• 出版时间：December 17, 2014
• 年：2014
• 卷：136
• 期：50
• 页码：17477-17483
• 全文大小：510K
• ISSN：1520-5126

文摘

The ever-emerging demands on miniaturization of electronic devices have pushed the development of innovative materials with desired properties. One major endeavor is the development of organic- or organic鈥搃norganic hybrid-based electronics as alternatives or supplements to silicon-based devices. Herein we report the first observation of the coexistence of resistance switching and ferroelectricity in a metal鈥搊rganic framework (MOF) material, [InC₁₆H₁₁N₂O₈]路1.5H₂O, denoted as RSMOF-1. The electrical resistance of RSMOF-1 can be turned on and off repeatedly with a current ratio of 30. A first-principles molecular dynamics simulation suggests that the resistive switching effect is related to the ferroelectric transition of N路路路H鈥揙路路路H鈥揘 bridge-structured dipoles of the guest water molecules and the amino-tethered MOF nanochannel. The discovery of the resistive switching effect and ferroelectricity in MOFs offers great potential for the physical implementation of novel electronics for next-generation digital processing and communication.