Trifluoromethylation of 2D Transition Metal Dichalcogenides: A Mild Functionalization and Tunable p-Type Doping Method.

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ID: 278863
2024
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Ranked #6 of 8 articles by views in Angewandte Chemie (International ed. in English)

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Abstract
Chemical modification is a powerful strategy for tuning the electronic properties of 2D semiconductors. Here we report the electrophilic trifluoromethylation of 2D WSe and MoS under mild conditions using the reagent trifluoromethyl thianthrenium triflate (TTT). Chemical characterization and density functional theory calculations reveal that the trifluoromethyl groups bind covalently to surface chalcogen atoms as well as oxygen substitution sites. Trifluoromethylation induces p-type doping in the underlying 2D material, enabling the modulation of charge transport and optical emission properties in WSe. This work introduces a versatile and efficient method for tailoring the optical and electronic properties of 2D transition metal dichalcogenides.
Reference Key
kerwin2024trifluoromethylationangewandte Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Kerwin, Brendan;Liu, Stephanie E;Sadhukhan, Tumpa;Dasgupta, Anushka;Jones, Leighton O;López-Arteaga, Rafael;Zeng, Thomas T;Facchetti, Antonio;Schatz, George C;Hersam, Mark C;Marks, Tobin J;
Journal Angewandte Chemie (International ed. in English)
Year 2024
DOI
10.1002/anie.202403494
URL
Keywords
wse2 functionalization mos2 trifluoromethylation

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