Chemistry Weekly Seminar - Dr. Maryam Ebrahimi, Lakehead University
Dr. Maryam Ebrahimi, Assistant Professor and Canada Research Chair in Low-Dimensional Nanomaterials, Department of Chemistry, Lakehead University, will present a seminar at 1:30 pm (location TBA).
Topic:
Rational design and characterization of 1D and 2D carbon-based nanomaterials on surfaces
On-surface reactions offer a platform to design low-dimensional nanomaterials whose chemical and electronic properties can be tailored by their chemical structure. The molecules’ functional groups and the reactivity of the substrates control the molecule-molecule and molecule-substrate interactions, which steer the design of the obtained molecular structures. We present various surface reactions for creating one- and two-dimensional (1D and 2D) polymers, metal-organic networks, and organometallic structures on Au(111), Ag(111) and Cu(111). To identify their morphology and chemical nature, we employ high-resolution scanning tunnelling microscopy and non-contact atomic force microscopy, and other surface characterization techniques, such as X-ray photoelectron spectroscopy, complemented with density functional theory calculations. The chemical and thermal stability and structural design of these molecular-based low-dimensional nanomaterials make them promising candidates for various applications. These materials are tailored to exhibit unique electronic properties, charge mobility and/or electron spin-based structure, suitable for carbon-based nanoelectronics, spintronics, and quantum technology applications.
References
[1] M. Ebrahimi, Nature Chemistry 14 (2022) 3-4 (News & Views)
[2] M. Ebrahimi, F. Rosei, Nature 542 (2017) 423-424 (News & Views)
[3] M. Ebrahimi, F. Rosei, Nature Photonics 10 (2016) 434-436
[4] D. P. Goronzy et al., ACS Nano 12 (2018) 7445-7481(News & Views)
[5] M. Ebrahimi et al., Journal of the American Chemical Society 133 (2011) 16560-16565
[6] G. Galeotti et al., Faraday Discussions 204 (2017) 453-469
[7] F. De Marchi et al., Nanoscale 10 (2018) 16721-16729
[8] G. Galeotti et al., Chemical Science 10 (2019) 5167-5175
[9] C. Jing et al., Angewandte Chemie International Edition 58 (2019) 18948-18956
[10] G. Galeotti et al., Nature Materials 19 (2020) 874-880
[11] P. Ji et al., Small 16 (2020) 2002393
[12]. N. Cao et al., Nanoscale 13 (2021) 19884-19889
Date: Friday, March 11
Time: 1:30 pm
Zoom link available by request from chem.dept@usask.ca