106 citations · 303 across the 12 of their papers we have counts for
12 papers
A Concise Review of Recently Synthesized 2D Carbon Allotropes: Amorphous Carbon, Graphynes, Biphenylene and Fullerene Networks
Ricardo Paupitz, Alexandre F. Fonseca, Mizraim Bessa +6
Two-dimensional (2D) carbon allotropes have received considerable attention due to their unique properties and potential applications in several fields, including electronics, cata…
Reversible Actuation of -Borophene Nanoscrolls
Guilherme S. L. Fabris, Douglas S. Galvão, Ricardo Paupitz
In this work, we proposed and investigated the structural and electronic properties of boron-based nanoscrolls (armchair and zigzag) using the DFTB+ method. We also investigated th…
Covalent Adsorption of functional groups on [N]-carbophenes
Chad E. Junkermeier, George Psofogiannakis, Ricardo Paupitz
Starting from the planar molecule 1,3,5-trihydroxybenzene, Du et al. reported synthesizing one of a couple of possible 2D materials: graphenylene or 3-carbophene. 3-carbophene is a…
Auxetic properties of a newly proposed -graphyne-like material
Ricardo Paupitz, Tales J. da Silva, Marilia J. Caldas +2
In this work, we propose a new auxetic (negative Poisson's ratio values) structure, based on a -graphyne structure, here named . Graphynes are 2D carbon allotro…
N-Carbophenes: two-dimensional covalent organic frameworks derived from linear N-phenylenes
Chad E. Junkermeier, Jay Paul Luben, Ricardo Paupitz
N-Carbophene (carbophene) is a novel class of two-dimensional covalent organic frameworks (2DCOF), based on linear N-phenylenes, that have moderate band gaps and low-mobility bands…
Ground state determination and band gaps of bilayers of graphenylenes and octafunctionalized-biphenylenes
Chad E. Junkermeier, Ricardo Paupitz
Device fabrication often requires materials that are either reliably conducting, reliably semiconducting, or reliably nonconducting. Bilayer graphene (BLG) changes from a supercond…
Graphene healing mechanisms: A theoretical investigation
Tiago Botari, Ricardo Paupitz, Pedro Alves da Silva Autreto +1
Large holes in graphene membranes were recently shown to heal, either at room temperature during a low energy STEM experiment, or by annealing at high temperatures. However, the de…
Grüneisen Parameter for Gases
Mariano de Souza, Paulo Menegasso, Ricardo Paupitz +2
The Grüneisen ratio (), i.e.\,the ratio of the linear thermal expansivity to the specific heat at constant pressure, quantifies the degree of anharmonicity of the potential gove…
Specific Heat Anomalies in Solids Described by a Multilevel Model
Mariano de Souza, Ricardo Paupitz, Antonio Seridonio +1
Specific heat measurements constitute one of the most powerful experimental methods to probe fundamental excitations in solids. After the proposition of Einstein's model, more than…
Inorganic Graphenylene: A Porous Two-Dimensional Material With Tunable Band Gap
Eric Perim, Ricardo Paupitz, Pedro Alves da Silva Atreto +1
By means of ab initio calculations we investigate the possibility of existence of a boron nitride (BN) porous two-dimensional nanosheet which is geometrically similar to the carbon…
Mechanical Properties and Fracture Dynamics of Silicene Membranes
T. Botari, E. Perim, P. A. S. Autreto +3
As graphene became one of the most important materials today, there is a renewed interest on others similar structures. One example is silicene, the silicon analogue of graphene. I…
One-dimensional Silicon and Germanium Nanostructures With No Carbon Analogues
Eric Perim, Ricardo Paupitz, Tiago Botari +1
In this work we report new silicon and germanium tubular nanostructures with no corresponding stable carbon analogues. The electronic and mechanical properties of these new tubes w…