Optical and morphological properties of Curcuma longa dye for dye-sensitized solar cells

Environ Sci Pollut Res Int. 2021 Nov;28(41):57860-57871. doi: 10.1007/s11356-021-14551-9. Epub 2021 Jun 7.

Abstract

New experimental results of morphological and optical properties of Curcuma longa dye thin film were investigated. The thin films were deposited by physical vapor deposition technique. Morphological properties were measured using atomic force microscopy technique and they show a granular structure which above there are nanotubes shapes. Photoluminescence of Curcuma longa at low temperature was investigated and discussed for the first time. The temperature effect from 77 to 300 K of Curcuma longa thin film has been shown and luminescence was strongly observed. Photoelectrochemical parameters of the dye-sensitized solar cell based on Curcuma longa have been computed via the finite element method. The power conversion efficiency is about 0.86% obtained from short circuit current, open-circuit voltage, and fill factor of 0.13 mA/cm2, 0.52 mV, and 0.83, respectively. As a result, Curcuma longa dye can be applied to dye-sensitized solar cells.

Keywords: Atomic force microscopy (AFM); Curcuma longa dye; Decay time; Dye-sensitized solar cell (DSSC); Natural dyes; Photoluminescence; Physical vapor deposition (PVD); Transmittance.

MeSH terms

  • Coloring Agents
  • Curcuma
  • Nanotubes*
  • Solar Energy*

Substances

  • Coloring Agents