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Title: Titanium dioxide/agglomerated-free reduced graphene oxide hybrid photoanode film for dye-sensitized solar cells photovoltaic performance improvement
Authors: Abu Bakar Suriani
Azmi Mohamed
Mamat, M. H.
Mohd Hafiz Dzarfan Othman
Mohd Khairul Ahmad
Abdul Khalil, H. P. S.
Marwoto, Putut
Muhammad Danang Birowosuto
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2019
Source: Abu Bakar Suriani, Muqoyyanah, Azmi Mohamed, Mamat, M. H., Mohd Hafiz Dzarfan Othman, Mohd Khairul Ahmad, . . . Muhammad Danang Birowosuto (2019). Titanium dioxide/agglomerated-free reduced graphene oxide hybrid photoanode film for dye-sensitized solar cells photovoltaic performance improvement. Nano-Structures & Nano-Objects, 18, 100314-. doi:10.1016/j.nanoso.2019.100314
Journal: Nano-Structures & Nano-Objects
Abstract: In this work, the role of agglomerated-free reduced graphene oxide (rGO) in the modification of titanium dioxide (TiO2) photoanode film was investigated for the enhancement of photovoltaic performance in dye-sensitized solar cells (DSSCs). The rutile TiO 2 nanorods–nanoflowers (NRs–NFs) and the photoanode layer consisting of anatase TiO 2 nanoparticles (NPs) were synthesized by the simple hydrothermal growth and squeegee method, respectively. Post-annealing treatment of TiO 2 NRs–NFs was also done in order to investigate its effect on the DSSCs performance. Meanwhile, the rGO solution was produced by reducing a graphene oxide (GO) solution utilizing hydrazine hydrate via a chemical reduction process. The initial GO solution was synthesized by electrochemical exfoliation assisted by a hyper-branched sodium 1,4-bis (neopentyloxy)-3-(neopentyloxycarbonyl)-1,4-dioxobutane-2-sulphonate (TC14) surfactant. The produced TC14-rGO was also hybridized with multi-walled carbon nanotubes (MWCNTs), which then coated by thin platinum (Pt) NPs (TC14-rGO_MWCNTs/Pt) and used as counter electrode (CE) thin film. Based on solar simulator measurements, the highest energy conversion efficiency (η) (1.559%) was achieved by TiO 2 NRs–NFs/TC14-rGO/TiO 2 NPs hybrid photoanode film with the short current density (J sc ), open circuit voltage (V oc ), and fill factor (FF) of 3.275 mA/cm 2 , 0.747 V, and 53.5, respectively as compared to others fabricated photoanode films; non-ann TiO 2 NRs–NFs/TiO 2 NPs (1.215%), ann TiO 2 NRs–NFs/TiO 2 NPs (1.462%), and TiO 2 NRs–NFs/TiO 2 NPs/TC14-rGO (0.525%). This result shows that the utilization of TC14-rGO for both photoanode and CE film increases the conductivity of the film. High η was also supported by high dye adsorption promoted by TiO 2 NPs as the top photoanode layer.
ISSN: 2352-507X
DOI: 10.1016/j.nanoso.2019.100314
Rights: © 2019 Elsevier B.V. All rights reserved. This paper was published in Nano-Structures & Nano-Objects and is made available with permission of Elsevier B.V.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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