Výsledky vyhledávání - "José Roberto Ribeiro Bortoleto"

Akademický článek

Structural characterization of polymeric nanofibers of polyvinylidene fluoride (PVDF)

Autor: José Augusto Souza Gomes da Silva, Walace Rodrigues da Silva Júnior, Ana Neilde Rodrigues da Silva, Roseli Künzel, José Roberto Ribeiro Bortoleto, Emanuel Benedito de Melo, Carina Ulsen, Neilo Marcos Trindade

Publikováno v: Polímeros, Vol 33, Iss 1 (2023)

Abstract Polyvinylidene fluoride (PVDF) is a polymer material that exhibits piezoelectricity, which is the ability of certain materials to generate an electric charge in response to applied mechanical stress. Electrospun nanofibers were prepared from

Externí odkaz: https://doaj.org/article/6005addc16904a619e9cf56f507c6581

Zobrazit plný text záznamu

Akademický článek

SnO2/ZnO Heterostructure as an Electron Transport Layer for Perovskite Solar Cells

Autor: Diego Aparecido Carvalho Albuquerque, Raul Ramos, Caio Eduardo do Prado Ireno, Everson Martins, Steven F. Durrant, José Roberto Ribeiro Bortoleto

Publikováno v: Materials Research, Vol 24, Iss suppl 1 (2021)

Abstract This work reports a study of the room-temperature synthesis of a SnO2/ZnO bilayer by magnetron sputtering. Morphological, optical, and electrical properties of the bilayer were investigated for different thicknesses of SnO2. Morphology was s

Externí odkaz: https://doaj.org/article/b8d498078ebe42e184f5ad01c466852c

Zobrazit plný text záznamu

Akademický článek

SiOxCyHz-TiO2 Nanocomposite Films Prepared by a Novel PECVD-Sputtering Process

Autor: Lucas Pires Gomes Oliveira, Rafael Parra Ribeiro, José Roberto Ribeiro Bortoleto, Nilson Cristino Cruz, Elidiane Cipriano Rangel

Publikováno v: Materials Research, Vol 24, Iss suppl 1 (2021)

Abstract Recently, there has been growing interest in the incorporation of particles in plasma deposited thin films to creation of multifunctional surfaces. In this work a new hybrid methodology based on the plasma enhanced chemical vapor deposition

Externí odkaz: https://doaj.org/article/689d52946a8548b9a42e1226e1cbf07a

Zobrazit plný text záznamu

Akademický článek

Surface functionalization of polyvinyl chloride by plasma immersion techniques

Autor: Péricles Lopes Sant’Ana, José Roberto Ribeiro Bortoleto, Nilson Cristino da Cruz, Elidiane Cipriano Rangel, Steven Frederick Durrant, Wido Herwig Schreiner

Publikováno v: Polímeros, Vol 30, Iss 4 (2021)

Abstract In this work we discuss the wettability, chemical composition, surface morphology and optical transmittance of polyvinyl chloride (PVC) samples treated by Plasma Immersion and by Plasma Immersion Ion Implantation. The total pressure of N2 or

Externí odkaz: https://doaj.org/article/f997f36b70d34d34a16925726a768332

Zobrazit plný text záznamu

Akademický článek

Co-doped p-type ZnO:Al-N Thin Films Grown by RF-Magnetron Sputtering at Room Temperature

Autor: Raul Ramos, Marcio Peron Franco de Godoy, Elidiane Cipriano Rangel, Nilson Cristino da Cruz, Steven F. Durrant, José Roberto Ribeiro Bortoleto

Publikováno v: Materials Research, Vol 23, Iss 3 (2020)

This study reports the structural properties of zinc oxide thin films co-doped with aluminum and nitrogen (ZnO:Al-N) grown by RF magnetron sputtering from an AZO (ZnO with 2 wt% Al2O3) target under nitrogen (N2) atmosphere at room temperature (RT). N

Externí odkaz: https://doaj.org/article/c1efe3bc7b8040e6b988e922696ef3d8

Zobrazit plný text záznamu

Akademický článek

Al-doping and Properties of AZO Thin Films Grown at Room Temperature: Sputtering Pressure Effect

Autor: Michel Chaves, Raul Ramos, Everson Martins, Elidiane Cipriano Rangel, Nilson Cristino da Cruz, Steven Frederick Durrant, José Roberto Ribeiro Bortoleto

Publikováno v: Materials Research, Vol 22, Iss 2 (2019)

Aluminum zinc oxide (AZO) thin films were synthesized on glass substrates by radio frequency (rf) magnetron sputtering from a metallic Zn-Al (5 at. %) target at room temperature. The morphological, structural, electrical and optical properties of the

Externí odkaz: https://doaj.org/article/afda8812740743a6a9bad8a1ac2ed9bb

Zobrazit plný text záznamu

Akademický článek

Morphological and electrical evolution of ZnO: Al thin filmsdeposited by RF magnetron sputtering onto glass substrates

Autor: Érica Pereira da Silva, Michel Chaves, Steven Frederick Durrant, Paulo Noronha Lisboa-Filho, José Roberto Ribeiro Bortoleto

Publikováno v: Materials Research, Vol 17, Iss 6, Pp 1384-1390 (2014)

In this work, the surface and electrical characteristics ZnO:Al thin films deposited by RF magnetron sputtering onto glass substrates have been investigated. Analysis of surface morphologies revealed two growth stages. In the first stage, up to thick

Externí odkaz: https://doaj.org/article/b87feec0f18e4c258fe2c103c602d6ca

Zobrazit plný text záznamu

Akademický článek

Feasibility of RF Sputtering and PIIID for production of thin films from red mud

Autor: Maria Lúcia Pereira Antunes, Nilson Cristino da Cruz, Adriana de Oliveira Delgado, Steven Frederick Durrant, José Roberto Ribeiro Bortoleto, Vivian Faria Lima, Pericles Lopes Santana, Luciano Caseli, Elidiane Cipriano Rangel

Publikováno v: Materials Research, Vol 17, Iss 5, Pp 1316-1323 (2014)

During the extraction of aluminum from bauxite, a waste of oxides containing traces of heavy metals in a highly alkaline matrix, called Red Mud (RM), is produced. In this study RM is characterized and the feasibility of using it as a precursor for th

Externí odkaz: https://doaj.org/article/dc1c7e57b7ce42beac6c961c04871dae

Zobrazit plný text záznamu

Advances in Chemistry and Biomedical Applications of Plasma Immersion Ion Implantation Treatments of Titanium Using Monte Carlo Simulations (Stop and Range Ions in Matter)

Autor: Steven F. Durrant, Péricles Lopes SantAna, Elidiane Cipriano Rangel, Nazir Monteiro dos Santos, José Roberto Ribeiro Bortoleto, Nilson Cristino da Cruz

In this work it was analyzed the surface modification of a titanium alloy using plasma immersion ion implantation in order to improve its tribological properties such hardness and scratch resistance. Moreover, physical simulation using SRIM (stopping

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::333dedc22a66857860e8d26557996648
https://doi.org/10.9734/bpi/cacb/v7/8991d

Zobrazit plný text záznamu

Growth Evolution of AZO thin Films Deposited by Magnetron Sputtering at Room Temperature

Autor: Michel Chaves, Steven F. Durrant, T. F. da Silva, José Roberto Ribeiro Bortoleto, Elidiane Cipriano Rangel, E. Martins, Robson Jose Carrera Ramos

Publikováno v: Materials Research v.24 suppl.1 2021
Materials research (São Carlos. Online)
Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
Materials Research, Volume: 24 Supplement 1, Article number: e20210052, Published: 23 JUL 2021
Materials Research, Vol 24, Iss suppl 1 (2021)
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Scopus
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP

Made available in DSpace on 2022-05-01T08:15:09Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-01-01 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8216b96383ee7b4d69d0d3dbf02948e8
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000700215

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání