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Layer-by-layer epitaxy of porphyrin−ligand Fe(ii)-Fe(iii) nanoarchitectures for advanced metal–organic framework growth

DOI: 10.1021/acsanm.0c02237 DOI Help

Authors: Zishu Wang (Institute of Physics, Chinese Academy of Sciences) , Kai Qian (Institute of Physics, Chinese Academy of Sciences) , Murat Anil Öner (Technical University of Munich) , Peter S. Deimel (Technical University of Munich) , Yan Wang (Institute of Physics, Chinese Academy of Sciences; Beijing Institute of Technology) , Shuai Zhang (Institute of Physics, Chinese Academy of Sciences; University of Chinese Academy of Sciences) , Xiaoxi Zhang (Institute of Physics, Chinese Academy of Sciences; Beijing Institute of Technology) , Vishal Gupta (Institute of Physics, Chinese Academy of Sciences) , Juan Li (Institute of Physics, Chinese Academy of Sciences; Beijing Institute of Technology) , Hong-Jun Gao (Institute of Physics, Chinese Academy of Sciences; University of Chinese Academy of Sciences; CAS Key Laboratory of Vacuum Physics, Chinese Academy of Sciences) , David A. Duncan (Diamond Light Source) , Johannes V. Barth (Technical University of Munich) , Xiao Lin (Institute of Physics, Chinese Academy of Sciences; University of Chinese Academy of Sciences; CAS Key Laboratory of Vacuum Physics, Chinese Academy of Sciences) , Francesco Allegretti (Technical University of Munich) , Shixuan Du (Institute of Physics, Chinese Academy of Sciences; University of Chinese Academy of Sciences; CAS Key Laboratory of Vacuum Physics, Chinese Academy of Sciences) , Carlos-Andres Palma (Institute of Physics, Chinese Academy of Sciences; Technical University of Munich; Humboldt-Universität zu Berlin)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Acs Applied Nano Materials

State: Published (Approved)
Published: November 2020

Abstract: Precisely layered molecular heterostructures are promising but still largely unexplored materials, with the potential to complement and enhance the scope of two-dimensional heterostructures. The controlled epitaxial growth of vertically stacked molecular layers connected through tailored linkers, can lead to significant development in the field. Here, we demonstrate that sequential assembly of prototypical iron porphyrins and axial ligands can be steered via temperature-programmed desorption, and monitored by mass spectrometry and by high-resolution atomic force microscopy under ultrahigh vacuum conditions. Complementary photoelectron spectroscopy analysis delivers chemical insight into the formation of layer-by-layer nanoarchitectures. Our temperature-directed methodology outlines a promising strategy for the in vacuo fabrication of precisely stacked, multicomponent (metal–organic) molecular heterostructures.

Journal Keywords: bottom-up self-assembly; molecular architectures; scanning tunneling microscopy; scanning probe microscopy; thermal desorption spectroscopy; directed self-assembly; photoemission; three-dimensional atomically-precise fabrication

Subject Areas: Materials, Chemistry


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Added On: 29/11/2020 15:25

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Physics Chemistry Materials Science Nanoscience/Nanotechnology

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