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<p>This work study graphene oxide nanoparticles (GONs) doped with sodium bicarbonate (NaHCO<sub>3</sub>) obtained by laser ablation from lemon and banana peels. The samples showed improvement in physical properties such as photoluminescence and electrical conductivity. These characteristics are very important to the development of optoelectronic devices. The laser ablation technique used in this work is easy-to-implement and a green method. Before the process of laser ablation, the banana and lemon peels were submerged in aqueous solutions with different concentrations of NaCl in order to realize the doped. The morphological analysis demonstrated the presence of clusters formed with thin graphene oxide layers. Besides, the results showed that the GONs obtained from lemon (LGONs) and banana peels (BGONs) with high concentration of NaCl has an amorphous structure. Energy dispersive spectroscopy analysis confirmed the presence of sodium (Na) in the structure of graphene layers. Fourier-transform infrared spectroscopy shows spectral changes due to the introduction of NaHCO<sub>3</sub> in the graphene layers. Raman analysis demonstrates an increment in the quantity of defects in the structure of the LGONs and BGONs. X-ray diffraction patterns demonstrate the introduction of NaHCO<sub>3</sub> in the graphene oxide structure. One main band for BGON and five small bands for LGONs were observed in Ultraviolet-visible spectra. The LGONs and BGONs obtained showed blue (450&#xa0;nm) and green (481&#xa0;nm) luminescence emissions. LGONs shows an increase in its luminescent emission. The analysis of conductivity demonstrated an increment in the conductivity of the LGONs and BGONs related to the quantity of NaCl used to dope the peels.</p>

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Improved physical properties of graphene oxide doped with NaHCO3 obtained by laser ablation from lemon and banana peels for implementation in optoelectronic devices

  • 期刊论文

  • 发表日期：

    2026年7月13日

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  • Francisco Severiano Carrillo,
  • Abdú Orduña Díaz,
  • Marlon Rojas López,
  • Mario Moreno Moreno,
  • Oscar Secundino Sánchez,
  • Míriam Carolina Mendoza Ramírez,
  • Javier Flores Méndez

摘要

This work study graphene oxide nanoparticles (GONs) doped with sodium bicarbonate (NaHCO3) obtained by laser ablation from lemon and banana peels. The samples showed improvement in physical properties such as photoluminescence and electrical conductivity. These characteristics are very important to the development of optoelectronic devices. The laser ablation technique used in this work is easy-to-implement and a green method. Before the process of laser ablation, the banana and lemon peels were submerged in aqueous solutions with different concentrations of NaCl in order to realize the doped. The morphological analysis demonstrated the presence of clusters formed with thin graphene oxide layers. Besides, the results showed that the GONs obtained from lemon (LGONs) and banana peels (BGONs) with high concentration of NaCl has an amorphous structure. Energy dispersive spectroscopy analysis confirmed the presence of sodium (Na) in the structure of graphene layers. Fourier-transform infrared spectroscopy shows spectral changes due to the introduction of NaHCO3 in the graphene layers. Raman analysis demonstrates an increment in the quantity of defects in the structure of the LGONs and BGONs. X-ray diffraction patterns demonstrate the introduction of NaHCO3 in the graphene oxide structure. One main band for BGON and five small bands for LGONs were observed in Ultraviolet-visible spectra. The LGONs and BGONs obtained showed blue (450 nm) and green (481 nm) luminescence emissions. LGONs shows an increase in its luminescent emission. The analysis of conductivity demonstrated an increment in the conductivity of the LGONs and BGONs related to the quantity of NaCl used to dope the peels.