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Large area molybdenum disulfide (MoS2) monolayers are typically obtained by using perylene‐3,4,9,10‐tetracarboxylic acid tetrapotassium salt (PTAS) as organic seeding promoter in chemical vapor deposition (CVD). However, the influence of the seeding promoter and the involvement of the functional groups attached to the seed molecules on the physical properties of the MoS2 monolayer are rarely taken into account. Here, it is shown that MoS2 monolayers exhibit remarkable differences in terms of the electronic polarizability by using two representative cases of seeding promoter, namely, the commercial PTAS and a home‐made perylene‐based molecule, N,N‐bis‐(5‐guanidil‐1‐pentanoic acid)‐perylene‐3,4,9,10‐tetracarboxylic acid diimide (PTARG). By thermogravimetric analysis, it is verified that the thermal degradation of the promoters occurs differently at the CVD working condition: with a single …
Publication date: 
1 Oct 2020

Christian Martella, Erika Kozma, Pinaka Pani Tummala, Saverio Ricci, Kishan Ashokbhai Patel, Anita Andicsovà‐Eckstein, Fabio Bertini, Guido Scavia, Roman Sordan, Luca G Nobili, Monica Bollani, Umberto Giovanella, Alessio Lamperti, Alessandro Molle

Biblio References: 
Volume: 7 Issue: 20 Pages: 2000791
Advanced Materials Interfaces