材料科学
复合数
各向异性
导电体
电阻率和电导率
电场
微观结构
微电子
Crystal(编程语言)
复合材料
乙二醇
化学工程
纳米技术
光学
电气工程
物理
量子力学
计算机科学
程序设计语言
工程类
作者
Tea-Whan Hong,Changjae Lee,Yeongseo Bak,Geonhyeong Park,Hongju Lee,Sung Ho Kang,Tae‐Hyun Bae,Dong Ki Yoon,Jesse G. Park
出处
期刊:Small
[Wiley]
日期:2024-01-04
标识
DOI:10.1002/smll.202309469
摘要
Abstract Property optimization through orientation control of metal–organic framework (MOF) crystals that exhibit anisotropic crystal structures continues to garner tremendous interest. Herein, an electric field is utilized to post‐synthetically control the orientation of conductive layered Cu 3 (HHTP) 2 (HHTP = 2,3,6,7,10,11‐hexahydroxytriphenylene) crystals dispersed in an electronically insulating poly(ethylene glycol) diacrylate (PEGDA) oligomer matrix. Optical and electrical measurements are performed to investigate the impact of the electric field on the alignment of Cu 3 (HHTP) 2 crystals and the formation of aggregated microstructures, which leads to an ≈5000‐fold increase in the conductivity of the composite. Notably, the composite thin‐films containing aligned Cu 3 (HHTP) 2 crystals exhibit significant conductivity of ≈10 −3 S cm −1 despite the low concentration (≈1 wt.%) of conductive Cu 3 (HHTP) 2 . The use of an electric field to align Cu 3 (HHTP) 2 crystals can rapidly generate various desired patterns that exhibit on‐demand tunable collective charge transport anisotropy. The findings provide valuable insights toward the manipulation and utilization of conductive MOFs with anisotropic crystal structures for various applications such as adhesive electrical interconnects and microelectronics.
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