Synthesis of two-dimensional nanowall of Cu-Doped TiO2 and its application as photoanode in DSSCs

Dahyunir Dahlan, Siti Khatijah Md Saad, Ade Usra Berli, Abdil Bajili, Ali Umar Akrajas

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Two-dimensional nanowall of Cu-doped TiO2 (CuTNW) has been prepared in this work to study the role of Cu doping on its photoactivity properties and its photovoltaic performance as photoanode in a dye-sensitized solar cell (DSSC). TiO2 nanowall with five Cu ion doping, i.e. 6.25, 12.5, 25.0, 50.0 and 100.0 mM, were prepared via a liquid-phase deposition method using ammoniumhexafluorotitanate and hexamethylenetetramine as the reagents with a growth temperature of 90 °C. The X-Ray Diffraction (XRD), X-ray energy dispersion (EDX) and diffuse optical reflectance spectroscopy analysis results confirmed the successfulness of the Cu doping process in the TiO2 nanowall and effective modification on the photoactivity of the TiO2 nanowall. We found that the power conversion efficiency of the DSSC utilizing TiO2 nanowall as photoanode can be enhanced up to 2 times, i.e. from 0.2% to 0.44%, when the TiO2 nanowall doped with Cu ion. The nanostructure preparation, device fabrication and the mechanism for the device performance enhancement will be discussed.

Original languageEnglish
Pages (from-to)185-189
Number of pages5
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Volume91
DOIs
Publication statusPublished - 1 Jul 2017

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Doping (additives)
synthesis
solar cells
dyes
Methenamine
Ions
hexamethylenetetramine
Growth temperature
Conversion efficiency
reagents
Energy dispersive spectroscopy
Nanostructures
ions
liquid phases
x rays
Spectroscopy
reflectance
Fabrication
X ray diffraction
X rays

Keywords

  • Cu-doped TiO
  • DSSCs
  • Nanowall
  • Photoactivity
  • Porous

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

Cite this

Synthesis of two-dimensional nanowall of Cu-Doped TiO2 and its application as photoanode in DSSCs. / Dahlan, Dahyunir; Md Saad, Siti Khatijah; Berli, Ade Usra; Bajili, Abdil; Akrajas, Ali Umar.

In: Physica E: Low-Dimensional Systems and Nanostructures, Vol. 91, 01.07.2017, p. 185-189.

Research output: Contribution to journalArticle

Dahlan, Dahyunir ; Md Saad, Siti Khatijah ; Berli, Ade Usra ; Bajili, Abdil ; Akrajas, Ali Umar. / Synthesis of two-dimensional nanowall of Cu-Doped TiO2 and its application as photoanode in DSSCs. In: Physica E: Low-Dimensional Systems and Nanostructures. 2017 ; Vol. 91. pp. 185-189.
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