Influence of Ag ion adsorption on the photoactivity of ZnO nanorods for dye-sensitized solar cell application

Iwantono Iwantono, Fera Anggelina, Siti Khatijah Md Saad, Mohd Yusri Abd Rahman, Ali Umar Akrajas

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Photoactivity and surface chemistry properties, including optical density and surface charge transfer characteristic, of a photoanode in a dye-sensitized solar cell (DSSC) play a critical role in the device overall performance. In this study, the role of Ag ions adsorption on the surface of ZnO nanorods on the photoactivity properties was investigated. It was found that the Ag ions attachment onto the ZnO nanorods surface not only modified the surface chemistry but also the photoactivity properties of the ZnO nanorods. The surface chemistry that is indicated by the charge transfer resistance characteristic, improved significantly upon the treatment of ZnO nanarods with Ag ion solution. This produces dramatically enhancement in the DSSC performances. Power conversion efficiency enhancement up to three times higher, namely from 0.46 to 1.12%, has been successfully recorded. The mechanism of the device improvement upon the introduction of Ag ion on the surface of ZnO nanorods will be discussed.

Original languageEnglish
Pages (from-to)312-318
Number of pages7
JournalMaterials Express
Volume7
Issue number4
DOIs
Publication statusPublished - 1 Aug 2017

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Nanorods
Surface chemistry
Ions
Adsorption
Charge transfer
Density (optical)
Surface charge
Conversion efficiency
Dye-sensitized solar cells

Keywords

  • Ag ion adsorption
  • DSSCs
  • Photoactivity
  • Photosensitivity
  • ZnO nanorods

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Influence of Ag ion adsorption on the photoactivity of ZnO nanorods for dye-sensitized solar cell application. / Iwantono, Iwantono; Anggelina, Fera; Md Saad, Siti Khatijah; Abd Rahman, Mohd Yusri; Akrajas, Ali Umar.

In: Materials Express, Vol. 7, No. 4, 01.08.2017, p. 312-318.

Research output: Contribution to journalArticle

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