Optical properties of amine-functionalized graphene oxide

J. Douda, C. R. González Vargas, E. V. Basiuk, A. I. Díaz Cano, J. A. Fuentes García, X. A. Hernández Contreras

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

Important applications of graphene oxide (GO) its derivatives have been found in several areas: energy materials, water treatment, environmental, catalytic, photocatalytic, and biomedical technologies. Among them, the application of GO in optical biosensors has attracted ever-increasing interest in the past few years. In the present work, GO was amine-functionalized by a solvent-free one-step method with two aromatic amines: 1-aminopyrene (AP), and 2-aminofluorene (AF); and one aliphatic amine 1-octadecylamine (ODA). Particle size was estimated by field emission-scanning electron microscopy (FE-SEM), and transmission electron microscopy (TEM). Optical properties have been evaluated by application of photoluminescence (PL), FTIR, UV–VIS, and Raman spectroscopy. As a result, this study offers an efficient way to tune the optical properties due to their amine functionalization, favoring the development of optoelectronic and biological applications using graphene-based materials in the future.

Original languageEnglish
Pages (from-to)567-578
Number of pages12
JournalApplied Nanoscience (Switzerland)
Volume9
Issue number4
DOIs
StatePublished - 1 Jun 2019

Keywords

  • Amine functionalization
  • Graphene oxide
  • Optical properties
  • Sensors

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