Dynamic covalent conjugated polymer epitaxy on graphene

0510535 - ÚFCH JH 2020 RIV GB eng J - Journal Article
Assies, L. - Fu, Ch. - Kovaříček, Petr - Bastl, Zdeněk - Drogowska, Karolina - Lang, J. - Guerra, Valentino Libero Pio - Samori, P. - Orgiu, E. - Perepichka, D.F. - Kalbáč, Martin
Dynamic covalent conjugated polymer epitaxy on graphene.
Journal of Materials Chemistry C. Roč. 7, č. 39 (2019), s. 12240-12247. ISSN 2050-7526. E-ISSN 2050-7534
R&D Projects: GA ČR GA18-20357S; GA ČR(CZ) GJ18-09055Y; GA MŠMT(CZ) LM2015073; GA MŠMT(CZ) EF16_013/0001821
Institutional support: RVO:61388955
Keywords : liquid/solid interface * chemistry * nanoscale * surfaces * functionalization * crystallinity * desorption
OECD category: Physical chemistry
Impact factor: 7.059, year: 2019
Method of publishing: Limited access

Hybrid heterostructures formed from ordered molecular layers on two-dimensional materials can have unique properties differing from those of their bulk phases. By employing principles of dynamic covalent chemistry, we have synthesized a series of novel conjugated polyimines that form epitaxial ordered monolayers on graphene. The interplay between molecular physisorption and dynamic polymerization at the solid-liquid interface drives the formation of longer chains at the surface with dramatically higher rates than in solution. The physico-chemical properties of such assemblies at different length scales on graphene were investigated by a combination of experimental techniques. ´Covalent dynamic epitaxy´ was also found to modulate the properties of both substrate and dynamers such as doping and photoluminescence, respectively.
Permanent Link: http://hdl.handle.net/11104/0300988