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Type: Artigo de periódico
Title: Single-wall Carbon Nanotubes Chemically Modified With Cysteamine And Their Application In Polymer Solar Cells: Influence Of The Chemical Modification On Device Performance.
Author: Conturbia, Giovanni
Vinhas, Rita de Cássia G
Landers, Richard
Valente, Gustavo M S
Baranauskas, Vitor
Nogueira, Ana Flávia
Abstract: In order to improve the dispersion of single-wall carbon nanotubes in a matrix of poly(3-hexylthiophene), this paper reports the modification of single-wall carbon nanotubes with COOH groups followed by reaction with cysteamine that introduced thiol groups along the tubes. The resulting modified single-wall carbon nanotubes were characterized by high resolution transmission electron microscopy, thermogravimetric analysis, X-ray photoelectron spectroscopy and Raman spectroscopy. The modified carbon nanotubes were applied, in combination with poly(3-hexylthiophene), in a bulk heterojunction solar cell. After passing through a post-treatment process to obtain debundied modified single-wall carbon nanotubes, solar cells with improved performance were obtained. After the treatment sequence, both the open circuit voltage and short-circuit current increased in comparison to the non-treated modified single-wall carbon nanotubes polymer solar cells.
Citation: Journal Of Nanoscience And Nanotechnology. v. 9, n. 10, p. 5850-9, 2009-Oct.
Rights: fechado
Identifier DOI: 
Date Issue: 2009
Appears in Collections:Unicamp - Artigos e Outros Documentos

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