离域电子
材料科学
电子迁移率
晶体管
纳米技术
电荷(物理)
模块化(生物学)
光电子学
化学物理
化学
物理
有机化学
量子力学
遗传学
生物
电压
作者
Michael L. Aubrey,Brian M. Wiers,Sean C. Andrews,Tsuneaki Sakurai,Sebastian E. Reyes‐Lillo,Samia M. Hamed,Chung-Jong Yu,Lucy E. Darago,Jarad A. Mason,Jin‐Ook Baeg,Fernande Grandjean,Gary J. Long,Shu Seki,Jeffrey B. Neaton,Peidong Yang,Jeffrey R. Long
出处
期刊:Nature Materials
[Springer Nature]
日期:2018-06-04
卷期号:17 (7): 625-632
被引量:260
标识
DOI:10.1038/s41563-018-0098-1
摘要
Conductive metal-organic frameworks are an emerging class of three-dimensional architectures with degrees of modularity, synthetic flexibility and structural predictability that are unprecedented in other porous materials. However, engendering long-range charge delocalization and establishing synthetic strategies that are broadly applicable to the diverse range of structures encountered for this class of materials remain challenging. Here, we report the synthesis of K x Fe2(BDP)3 (0 ≤ x ≤ 2; BDP2- = 1,4-benzenedipyrazolate), which exhibits full charge delocalization within the parent framework and charge mobilities comparable to technologically relevant polymers and ceramics. Through a battery of spectroscopic methods, computational techniques and single-microcrystal field-effect transistor measurements, we demonstrate that fractional reduction of Fe2(BDP)3 results in a metal-organic framework that displays a nearly 10,000-fold enhancement in conductivity along a single crystallographic axis. The attainment of such properties in a K x Fe2(BDP)3 field-effect transistor represents the realization of a general synthetic strategy for the creation of new porous conductor-based devices.
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