From Liquid-Phase Exfoliated 2D Materials to Functioning Devices
Emilio Perez a
a IMDEA Nanoscience, C/faraday, 9, Madrid, 28049, Madrid, Spain
Materials for Sustainable Development Conference (MATSUS)
Proceedings of nanoGe Fall Meeting 2018 (NFM18)
S6 Solution-based Two-dimensional Nanomaterials Sol2D
Torremolinos, Spain, 2018 October 22nd - 26th
Organizers: Christophe Delerue, Sandrine Ithurria and Christian Klinke
Invited Speaker, Emilio Perez, presentation 177
DOI: https://doi.org/10.29363/nanoge.nfm.2018.177
Publication date: 6th July 2018

One of the most attractive areas of research in Nanoscience is the combination of 2D materials through van der Waals forces to form heterostructures (Novoselov, K. S.; Mishchenko, A.; Carvalho, A.; Castro Neto, A. H. Science 2016, 353, DOI: 10.1126/science.aac9439). Here, we present strategies beyond dispersion forces to interface 0D (molecules) and 2D materials.

We will show examples of 0D-2D heterostructures connected through covalent and noncovalent chemistry. In the first example, we will show a method to functionalize graphene covalently with exquisite atomic selectivity and yield (NanoLett. 2016, Chem. Commun. 2017). In the second example, we will show that the photoresponse of MoS2 photodetectors can be enhanced by simple and reversible supramolecular functionalization with organic dyes (Chem. Commun. 2016). We will also show the example of a naturally occurring van der Waals heterostructure, franckeite, an air stable, p-doped semiconductor with photoresponse in the far IR (Nat. Comms. 2017). Finally, we will present strategies for the self assembly of liquid-phase exfoliated 2D materials from suspension into functioning electronic devices (Chem. Commun. 2017 and Nanoscale 2018).

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