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TITLE:
Determination of photothermal conversion efficiency of graphene and graphene oxide through an integrating sphere method - PC:1275

URV's Author/s:CARVAJAL MARTÍ, JOAN JOSEP; Ol.A. Savchuk; J. Massons; AGUILÓ DÍAZ, MAGDALENA; DÍAZ GONZÁLEZ, FRANCISCO MANUEL
Author, as appears in the article.:J.J. Carvajal; Ol.A. Savchuk; J. Massons; M. Aguiló; F. Díaz
Author identifier:0000-0002-4389-7298; n/a; n/a; 0000-0001-6130-9579; 0000-0003-4581-4967
Journal publication year:2016
Publication Type:Article
ISSN:0008-6223
Abstract:We report a new method for the determination of photothermal conversion efficiency 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.
Article's DOI:10.1016/j.carbon.2016.02.075
Link to the original source:https://www.sciencedirect.com/science/article/abs/pii/S0008622316301683?via%3Dihub
Papper version:info:eu-repo/semantics/submittedVersion
licence for use:https://creativecommons.org/licenses/by/3.0/es/
Department:Química Física i Inorgànica
Research group:Física i Cristal·lografia de Nanomaterials
Física i Cristal.lografia de Materials
Licence document URL:https://repositori.urv.cat/ca/proteccio-de-dades/
Thematic Areas:Chemistry
Keywords:oxide
graphene
photothermal
Entity:Universitat Rovira i Virgili
Record's date:2016-03-16
First page:134
Last page:141
Journal volume:103
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