de Lourdes Gonzalez-Juarez Maria, Morales Carlos, Flege Jan Ingo, Flores Eduardo, Martin-Gonzalez Marisol, Nandhakumar Iris, Bradshaw Darren
School of Chemistry, University of Southampton, Southampton SO17 1BJ, U.K.
Applied Physics and Semiconductor Spectroscopy, Brandenburg University of Technology Cottbus-Senftenberg, Konrad-Zuse-Strasse 1, D-03046 Cottbus, Germany.
ACS Appl Mater Interfaces. 2022 Mar 16;14(10):12404-12411. doi: 10.1021/acsami.2c00089. Epub 2022 Mar 1.
In this work, a switch from n-type to p-type conductivity in electrodeposited Cu(2,3,6,7,10,11-hexahydroxytriphenylene) [Cu(HHTP)] has been observed, which is most likely due to oxygen molecular doping. The synthesis of electrically conductive 2D metal-organic frameworks (MOFs) has been achieved through the introduction of highly conjugated organic linkers coordinated to their constituent metal-ion centers. However, the porous structure and unsaturated metal sites in MOFs make them susceptible to ambient adsorbates, which can affect their charge transport properties. This phenomenon has been experimentally investigated by GIXRD, Hall effect and Seebeck measurements, and X-ray photoelectron spectroscopy.
在这项工作中，观察到电沉积的铜（2,3,6,7,10,11 - 六羟基三亚苯）[Cu(HHTP)]的导电性从n型转变为p型，这很可能是由于氧分子掺杂所致。通过引入与构成它们的金属离子中心配位的高度共轭有机连接体，实现了导电二维金属有机框架（MOF）的合成。然而，MOF中的多孔结构和不饱和金属位点使它们易受环境吸附物的影响，这可能会影响它们的电荷传输性能。通过掠入射X射线衍射（GIXRD）、霍尔效应和塞贝克测量以及X射线光电子能谱对这一现象进行了实验研究。
