Co-sensitized natural dyes potentially used to enhance light harvesting capability

R. Amelia, D. Sawitri, D. D. Risanti*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We present the photoelectrochemical properties of dye-sensitized solar cells using natural pigments containing anthocyanins, betalains, and caroteins. The dyes were adsorbed by a photoanode that was fabricated from nanocrystalline TiO2 on transparent conductive glass. TiO2 comprises of 100% anatase and 90:10 anatase:rutile fraction. The dyes extracted from mangosteen pericarp, Musa aromatica pericarp, Celosia cristata flower and red beet root were characterized through UV-vis and IPCE. The effectiveness of the dyes was explained through photocurrent as a function of incident light power. It was found that the cocktail and multilayered dyes comprised of anthocyanins and caroteins is beneficial to obtain high photocurrent, whereas betalains is not recommended to be applied on untreated TiO2. Due to the bandgap properties of rutile and anatase, the presence of 10% rutile in TiO2 is favourable to further enhance the electron transport.

Original languageEnglish
Title of host publicationInternational Seminar on Photonics, Optics, and Its Applications, ISPhOA 2014
EditorsAulia Nasution
PublisherSPIE
ISBN (Electronic)9781628415599
DOIs
Publication statusPublished - 2015
EventInternational Seminar on Photonics, Optics, and Its Applications, ISPhOA 2014 - Sanur, Bali, Indonesia
Duration: 14 Oct 201415 Oct 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9444
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceInternational Seminar on Photonics, Optics, and Its Applications, ISPhOA 2014
Country/TerritoryIndonesia
CitySanur, Bali
Period14/10/1415/10/14

Keywords

  • Co-Sensitization
  • Dye Regeneration
  • IPCE
  • Natural Dye

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