arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2007.06899cond-mat.mtrl-scicond-mat.mes-hall
收藏

单层金属-有机骨架的合成及局域探针门控

Synthesis and Local Probe Gating of a Monolayer Metal-Organic Framework

Linghao Yan, Orlando J. Silveira, Benjamin Alldritt, Ondřej Krejčí, Adam S. Foster, Peter Liljeroth

摘要:

实现大面积均匀的二维(2D)金属有机框架(MOFs)并控制其在惰性表面上的电子性质是迈向电子器件未来应用的一大步。在此,我们成功地在外延石墨烯表面上制备了具有长程序的二维单层Cu-二氰基蒽(DCA)多晶光学薄膜。通过低温扫描隧道显微镜(STM)和光谱学(STS)结合密度泛函理论(DFT)计算研究了其结构和电子性质。我们展示了使用尖端诱导的局部电场在2D MOF中获得多个分子电荷状态。我们期望类似的策略可以应用于制造和表征具有异国情调的工程电子状态的2D MOFs。

英文摘要:

Achieving large-area uniform two-dimensional (2D) metal-organic frameworks (MOFs) and controlling their electronic properties on inert surfaces is a big step towards future applications in electronic devices. Here we successfully fabricated a 2D monolayer Cu-dicyanoanthracene (DCA) MOF with long-range order on an epitaxial graphene surface. Its structural and electronic properties are studied by low-temperature scanning tunneling microscopy (STM) and spectroscopy (STS) complemented by density-functional theory (DFT) calculations. We demonstrate access to multiple molecular charge states in the 2D MOF using tip-induced local electric fields. We expect that a similar strategy could be applied to fabricate and characterize 2D MOFs with exotic, engineered electronic states.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑