4 documents found, page 1 of 1
Electro-optical interfacial effects on a graphene/π-conjugated organic semicond...
Araujo, Karolline Aparecida de Souza; Cury, Luiz Alberto; Matos, Matheus Josué de Souza; Fernandes, Thales Fernando DamascenoThe 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 (S...
Raman evidence for pressure-induced formation of diamondene.
Martins, Luiz Gustavo Pimenta; Matos, Matheus Josué de Souza; Paschoal, Alexandre R.; Freire, Paulo T. C.; Andrade, Nádia Ferreira deDespite the advanced stage of diamond thin-film technology, with applications ranging from superconductivity to biosensing, the realization of a stable and atomically thick two-dimensional diamond material, named here as diamondene, is still forthcoming. Adding to the outstanding properties of its bulk and thin-film counterparts, diamondene is predicted to be a ferromagnetic semiconductor with spin polarized ba...
Crystal-oriented wrinkles with origami-type junctions in few-layer hexagonal bo...
Oliveira, Camilla Karla Brites Queiroz Martins de; Gomes, Egleidson Frederik do Amaral; Prado, Mariana C.; Alencar, Thonimar V.; Nascimento, Regiane doUnderstanding layer interplay is the key to utilizing layered heterostructures formed by the stacking of different two-dimensional materials for device applications. Boron nitride has been demonstrated to be an ideal substrate on which to build graphene devices with improved mobilities. Here we present studies on the morphology and optical response of annealed few-layer hexagonal boron nitride flakes deposited ...
Corrosion, wear and wear–corrosion behavior of graphite-like a-C:H films deposi...
Manhabosco, Taíse Matte; Barboza, Ana Paula Moreira; Batista, Ronaldo Junio Campos; Neves, Bernardo Ruegger Almeida; Muller, Iduvirges LourdesThis work presents a comparative wear, corrosion and wear–corrosion (the last one in a simulated physiological solution) study of graphite-like a-C:H (GLCH) films deposited on bare and nitrided Ti6Al4V alloy. Films, deposited by r.f. PACVD, presented low porosity and promoted high corrosion resistance. The friction coefficient of the films was very lowwith appreciablewear resistance at roomconditions. However, ...