Heptamethine Cyanine Dyes in the Design of Photoactive Carbon Nanomaterials | Zendy

Laura RodríguezPérez | Zendy; Carmen Villegas | Zendy; M. Ángeles Herranz | Zendy; Juan Luis Delgado | Zendy; Nazario Martı́n | Zendy

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Heptamethine Cyanine Dyes in the Design of Photoactive Carbon Nanomaterials

Author(s) -

Laura RodríguezPérez,

Carmen Villegas,

M. Ángeles Herranz,

Juan Luis Delgado,

Nazario Martı́n

Publication year - 2017

Publication title -

acs omega

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.779

H-Index - 40

ISSN - 2470-1343

DOI - 10.1021/acsomega.7b01499

Subject(s) - cyanine , nanomaterials , raman spectroscopy , carbon nanotube , fourier transform infrared spectroscopy , thermogravimetric analysis , graphene , materials science , x ray photoelectron spectroscopy , transmission electron microscopy , photoactive layer , photochemistry , nanotechnology , chemistry , chemical engineering , optoelectronics , organic chemistry , fluorescence , optics , solar cell , polymer solar cell , physics , engineering

Near-infrared (NIR) absorbing nanomaterials, built from anionic heptamethine cyanine dyes and single-walled carbon nanotubes or few-layer graphene, are presented. The covalent linkage, using 1,3-dipolar cycloaddition reactions, results in nanoconjugates that synchronize the properties of both materials, as demonstrated by an in-depth characterization study carried out by transmission electron microscopy, atomic force microscopy, thermogravimetric analysis, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy. UV-vis-NIR and Raman spectroscopies further confirmed the unique electronic structure of the novel photoactive nanomaterials.

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