Araujo, Karolline Aparecida de SouzaCury, Luiz AlbertoMatos, Matheus Josué de SouzaFernandes, Thales Fernando DamascenoCançado, Luiz Gustavo de Oliveira LopesNeves, Bernardo Ruegger Almeida2018-10-292018-10-292018ARAUJO, K. A. de S. et al. Electro-optical interfacial effects on a graphene/π-conjugated organic semiconductor hybrid system. Beilstein Journal of Nanotechnology, v. 9, p. 963-974, mar. 2018. Disponível em: <https://www.beilstein-journals.org/bjnano/articles/9/90>. Acesso em: 16 jun. 2018.21904286http://www.repositorio.ufop.br/handle/123456789/10473The influence of graphene and retinoic acid (RA) – a π-conjugated organic semiconductor – interface on their hybrid system is investigated. The physical properties of the interface are assessed via scanning probe microscopy, optical spectroscopy (photoluminescence and Raman) and ab initio calculations. The graphene/RA interaction induces the formation of a well-organized π-conjugated self-assembled monolayer (SAM) at the interface. Such structural organization leads to the high optical emission efficiency of the RA SAM, even at room temperature. Additionally, photo-assisted electrical force microscopy, photo-assisted scanning Kelvin probe microscopy and Raman spectroscopy indicate a RA-induced graphene doping and photo-charge generation. Finally, the optical excitation of the RA monolayer generates surface potential changes on the hybrid system. In summary, interface-induced organized structures atop 2D materials may have an important impact on both design and operation of π-conjugated nanomaterialbased hybrid systems.en-USabertoDFT calculationsScanning probe microscopySelf-assemblyArtigo publicado em periodicoThis is an Open Access article under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Fonte: o próprio artigo.