Articles producció científicaQuímica Física i Inorgànica

Determination of photothermal conversion efficiency of graphene and graphene oxide through an integrating sphere method

  • Identification data

    Identifier:  PC:3333
    Handle: https://hdl.handle.net/20.500.11797/PC3333
    Authors:  Carvajal, J.; Savchuk, O.; Masons, J.; Aguiló, M.; Díaz, F.
    Abstract:
    We report a new method for the determination of photothermal conversio nefficiency of photothermal agents, based on the use of an integrating sphere. We validated this method by comparing the photothermal conversion efficiency of Au nanorods calculated by this method and by the more conventional time constant method. Then, we applied this method to determine the photothermal conversion efficiency of graphene and graphene oxide nanosheets dispersions in dimethylformamide and water, respectively, finding out that they are excellent photothermal agents with photothermal conversion efficiencies among the highest reported up to now. We also analyzed the influence of the concentration of the materials, and the wavelength and power of irradiation in the temperature increase that can be achieved with them, finding out that they can be used, for instance, in cancer treatment through hyperthermia procedures with reduced costs when compared to other photothermal agents.

  • Others:

    Link to the original source: https://www.sciencedirect.com/science/article/abs/pii/S0008622316301683
    Article's DOI: 10.1016/j.carbon.2016.02.075
    Funding program: plan; Retos; MAT2013-47395-C4-4-R, plan; Retos; TEC2014-55948-R, altres; Grupos consolidados; 2014SGR13582, altres; Agaur; 2015FI_B2 00136, altres; Icrea Academia; 2010ICREA-02
    Journal publication year: 2016
    Entity: Universitat Rovira i Virgili
    Paper version: info:eu-repo/semantics/submittedVersion
    Record's date: 2018-09-26
    First page: 134
    URV's Author/s: CARVAJAL MARTÍ, JOAN JOSEP; Savchuk, O. ; MASONS BOSCH, JAIME; AGUILÓ DÍAZ, MAGDALENA; DÍAZ GONZÁLEZ, FRANCISCO MANUEL
    Department: Química Física i Inorgànica
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Publication Type: Article
    Last page: 141
    ISSN: 0008-6223
    Author, as appears in the article.: Carvajal, J. ; Savchuk, O. ; Masons, J. ; Aguiló, M. ; Díaz, F.
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    Journal volume: 103
    Research group: Física i Cristal.lografia de Materials, Física i Cristal·lografia de Nanomaterials
    Thematic Areas: Chemistry