The incorporation of gold nanoparticle on to curcumin sensitized titanium dioxide photo-anode: Will it be any photocurrent enhancement and why?

I. A. Hiyahara, Jarnuzi Gunlazuardi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The purpose of this study is to improve the photocurrent of curcumin (natural dyes) sensitized TiO2 photoanode, by introducing gold nanoparticles in the photoanode matrix. The plasmonic behavior, as well as the excellent conductivity of the gold nanoparticles are expected to play a role in the photo current enhancement. The TiO2 photoanode is made by doctor blading TiO2 paste on FTO substrate glass. TiO2/Au photoanode is prepared by depositing Au nanoparticles on the surface of TiO2 photoanode by electrophoresis method. Both photoanodes absorbed curcumin dye by electrophoresis of curcumin dye solution, resulting in TiO2/Curcumin and TiO2/Au/Curcumin photoanodes. The prepared photoanodes were characterized by mean of spectroscopic methods (UV-Vis Absorption) and electrochemical method (Multipulse Amperometry). The preliminary results indicated that that the TiO2/Au/Curcumin photoanode has a better absorption under visible light than TiO2/Curcumin. The spectra of TiO2/Au/Curcumin have a higher absorption and red shift (569 nm) compared to TiO2/curcumin (538 nm). It was also successfully observed that the resulted photocurrent under visible light, in the presence of gold nanoparticle, was increased. It was found that the photocurrent density produced from TiO2/Au/Curcumin photoanode was higher (45.9 μA/cm2 to 4.9 μA/cm2 after 300 s) than that of TiO2/Curcumin (81.4 μA/cm2 to 7.1 μA/cm2 after 300 s). It seems that the plasmonic resonance due to the presence of gold nanoparticles on the photoanode plays a key role in the photocurrent enhancement, thus this report's approach may be served as one of the way to overcome the weakness of the natural dyes in a DSSC system.

Original languageEnglish
Title of host publicationProceedings of the 3rd International Symposium on Current Progress in Mathematics and Sciences 2017, ISCPMS 2017
EditorsRatna Yuniati, Terry Mart, Ivandini T. Anggraningrum, Djoko Triyono, Kiki A. Sugeng
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735417410
DOIs
Publication statusPublished - 22 Oct 2018
Event3rd International Symposium on Current Progress in Mathematics and Sciences 2017, ISCPMS 2017 - Bali, Indonesia
Duration: 26 Jul 201727 Jul 2017

Publication series

NameAIP Conference Proceedings
Volume2023
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference3rd International Symposium on Current Progress in Mathematics and Sciences 2017, ISCPMS 2017
CountryIndonesia
CityBali
Period26/07/1727/07/17

Keywords

  • Titania (TiO)
  • curcumin dyes
  • gold nanoparticles
  • photoanode
  • photocurrent

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    Hiyahara, I. A., & Gunlazuardi, J. (2018). The incorporation of gold nanoparticle on to curcumin sensitized titanium dioxide photo-anode: Will it be any photocurrent enhancement and why? In R. Yuniati, T. Mart, I. T. Anggraningrum, D. Triyono, & K. A. Sugeng (Eds.), Proceedings of the 3rd International Symposium on Current Progress in Mathematics and Sciences 2017, ISCPMS 2017 [020095] (AIP Conference Proceedings; Vol. 2023). American Institute of Physics Inc.. https://doi.org/10.1063/1.5064092