scholarly journals Fabrication of Dye-Sensitized Solar Cells (DSSC) Using Mg-Doped ZnO as Photoanode and Extract of Rose Myrtle (Rhodomyrtus tomentosa) as Natural Dye

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Nurdin Siregar ◽  
Motlan ◽  
Jonny Haratua Panggabean ◽  
Makmur Sirait ◽  
Juniastel Rajagukguk ◽  
...  

A dye-sensitized solar cell (DSSC) device using Mg-doped Zn thin films as photoanode and fruit extract of rose myrtle (Rhodomyrtus tomentosa) as the natural dye was investigated. The effect of annealing temperature (400-550°C) on the films of photoanode was systematically studied using an X-ray diffractometer (XRD), UV-Visible Near Infrared (UV-Vis NIR) Spectrophotometer, scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS). XRD confirm that all sample has the wurtzite hexagonal with crystallite size of 25 nm. The SEM images reveal particles on the surface of the Mg-doped ZnO thin film of irregular shapes. Increasing the annealing temperature leads to a larger particle size and slightly increases bandgap energy. The dye sensitizer of extracted rose myrtle (Rhodomyrtus tomentosa) has a strong absorption at the visible light region. The maximum efficiency of the DSSC device is 3.53% with Mg-ZnO photoanode annealed at 500°C.

2014 ◽  
Vol 25 (10) ◽  
pp. 4673-4673 ◽  
Author(s):  
İ. Polat ◽  
S. Yılmaz ◽  
E. Bacaksız ◽  
Y. Atasoy ◽  
M. Tomakin

2021 ◽  
Author(s):  
Selva Esakki E ◽  
Renuga Devi L ◽  
Sarathi S ◽  
Meenakshi Sundar S

Abstract We report a novel type of Mg-doped ZnO nanoparticles prepared on solvothermal route nanoparticles at different concentrations (2%,4%,6%, and 8%) and used Mg-ZnO as photoanode for dye-sensitized solar cells (DSSC) fabrication. DSSC using Mg-doped ZnO as a semiconductor material and natural dyes Terminalia cattappa as sensitizer were successfully produced. The structural, optical spectra of Mg-ZnO nanopowder were studied using XRD, FESEM-EDX, TEM, SAED patterns, and UV-Visible Spectra, Fourier Transform Infrared (FT-IR). The XRD results show that the crystal size also increases by increasing the dopant concentration of the Mg-doped ZnO sample. The optical spectra show the absorption of the samples increases with the increases of concentration using the UV-Visible analysis and the bandgap energy is calculated by Tauc plot. Mg-doped ZnO nanoparticles prepared at different concentrations were used for the fabrication of DSSC. Furthermore, from the J-V graph, 8% concentration is more effective than other concentrations.


2013 ◽  
Vol 117 (6) ◽  
pp. 2600-2607 ◽  
Author(s):  
C. Justin Raj ◽  
Kandasamy Prabakar ◽  
S. N. Karthick ◽  
K. V. Hemalatha ◽  
Min-Kyu Son ◽  
...  

Author(s):  
Fouaz Lekoui ◽  
Salim Hassani ◽  
Mohammed Ouchabane ◽  
Hocine Akkari ◽  
Driss Dergham ◽  
...  

2018 ◽  
Vol 1 (2) ◽  
pp. 301-305 ◽  
Author(s):  
Maxwell T. Robinson ◽  
Marie E. Armbruster ◽  
Avi Gargye ◽  
David E. Cliffel ◽  
G. Kane Jennings

2010 ◽  
Vol 03 (04) ◽  
pp. 279-283 ◽  
Author(s):  
LEI GUO ◽  
LEI L. KERR

Antimony doped ZnO (ZnO:Sb) fiber was grown by a simple thermal evaporation process of Zn powder and Sb2O3 . Scanning Electron Microscopy (SEM) shows that the grown fiber reaches more than 70 μm, which is the longest ZnO fiber reported in literature. Electron Backscattered Diffraction (EBSD) study indicates that this crystal is composed of three main phases: antimony doped zinc oxide (ZnO:Sb) , ordonezite (ZnSb2O6) and zinc antimony oxide (Zn7Sb2O12) . The current–voltage (I–V) characteristics demonstrate that the conversion efficiency of dye sensitized solar cell was greatly enhanced by ZnO:Sb fiber.


Sign in / Sign up

Export Citation Format

Share Document