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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Hybrid composite material based on polythiophene derivative nanofibers modified with gold nanoparticles for optoelectronics applications

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Sanfelice, Rafaela C. ; Mercante, Luiza A. ; Pavinatto, Adriana ; Tomazio, Nathalia B. ; Mendonca, Cleber R. ; Ribeiro, Sidney J. L. ; Mattoso, Luiz H. C. ; Correa, Daniel S.
Total Authors: 8
Document type: Journal article
Source: Journal of Materials Science; v. 52, n. 4, p. 1919-1929, FEB 2017.
Web of Science Citations: 14

Conjugated polymers have been extensively applied as active materials in nanostructured platforms for optical and electrical devices. The incorporation of metal nanoparticles (NPs) into the polymer-based platform arises as a strategy to develop novel hybrid functional nanocomposites with enhanced electrical and optical properties. However, efficient and simple processing routes to produce such nanocomposites are still on demand. In this work, we present an effective route to obtain functional nanocomposites based on electrospun nanofibers coated with gold nanoparticles, displaying interesting optical and electrical properties. Polymethyl methacrylate (PMMA) electrospun nanofibers doped with poly(3-hexyl thiophene-2,5-diyl) (P3HT) were obtained by the electrospinning technique, and displayed a strong red emission centered at 650 nm assigned to P3HT. Such nanofibers were deposited on to fluorine-doped tin oxide electrodes and with modified with gold nanoparticles (AuNPs) in order to produce hybrid composite materials. The performance of electrodes modified with PMMA/P3HT-AuNPs composite material was evaluated by impedance spectroscopy and revealed an enhancement of electron transfer kinetics, which indicates it as a potential platform for optical and electrochemical (bio)sensors. (AU)

FAPESP's process: 12/23880-3 - Development of polymeric nanostructures as a sensor platform for diagnosis of bacteria causing mastitis
Grantee:Luiza Amim Mercante
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 13/26712-7 - Development of nanostructured biosensors for the detection of endocrine disruptors in aquaculture
Grantee:Adriana Pavinatto da Costa
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 14/16789-5 - Hybrid nanostructured materials based on conjugated polymers and metallic nanoparticles for sensor applications
Grantee:Daniel Souza Corrêa
Support type: Regular Research Grants