TY - JOUR
T1 - Influence of Hydrothermal Temperature Variation and Annealing on ZnO Nanoparticles on the Performance of Photoanode in DSSC
AU - Takyi, Gabriel Kwame Sipi
AU - Nyankson, Emmanuel
AU - Akple, Maxwell Selasse
AU - Yaya, Abu
AU - Kumara, Gamaralalege Rajanya Asoka
AU - Onwona-Agyeman, Boateng
N1 - Publisher Copyright:
© 2024 by the authors.
PY - 2024/6/15
Y1 - 2024/6/15
N2 - The hydrothermal synthesis method was used to synthesize ZnO nanoparticles at varying temperatures, and the resulting samples were then annealed in air at 500°C. Energy dispersive spectroscopy (EDX), Fourier-transform infrared spectroscopy (FTIR), diffuse reflectance spectroscopy (DRS), and thermogravimetry analysis/differential scanning calorimetry (TGA/DSC) were used to analyze the samples that had been synthesized. With a dominating diffraction peak of (002) at the maximum hydrothermal temperature of 120°C and the annealing temperature of 500°C for 30 minutes, the XRD data show the development of hexagonal wurtzite phases. The EDX results showed the presence of elemental zinc and oxygen, whereas the SEM revealed almost spherical particles with improved agglomeration. For the sample synthesized at 120°C and annealed at 500°C, FTIR examination shows that volatile organic compounds have been removed from the sample. The light-to-electric energy conversion efficiency was recorded to be 1.4 % for ruthenium-based complex (N719) dye and 1% for metal-free indoline (D149) dye under AM 1.5 irradiation (1000 Wm-2 simulated sunlight) when the ZnO nanoparticles prepared at 120°C was combined with colloidal tin oxide to form a composite-photoanode in dye-sensitized solar cells.
AB - The hydrothermal synthesis method was used to synthesize ZnO nanoparticles at varying temperatures, and the resulting samples were then annealed in air at 500°C. Energy dispersive spectroscopy (EDX), Fourier-transform infrared spectroscopy (FTIR), diffuse reflectance spectroscopy (DRS), and thermogravimetry analysis/differential scanning calorimetry (TGA/DSC) were used to analyze the samples that had been synthesized. With a dominating diffraction peak of (002) at the maximum hydrothermal temperature of 120°C and the annealing temperature of 500°C for 30 minutes, the XRD data show the development of hexagonal wurtzite phases. The EDX results showed the presence of elemental zinc and oxygen, whereas the SEM revealed almost spherical particles with improved agglomeration. For the sample synthesized at 120°C and annealed at 500°C, FTIR examination shows that volatile organic compounds have been removed from the sample. The light-to-electric energy conversion efficiency was recorded to be 1.4 % for ruthenium-based complex (N719) dye and 1% for metal-free indoline (D149) dye under AM 1.5 irradiation (1000 Wm-2 simulated sunlight) when the ZnO nanoparticles prepared at 120°C was combined with colloidal tin oxide to form a composite-photoanode in dye-sensitized solar cells.
KW - DSSC
KW - SEM
KW - annealing
KW - hydrothermal
KW - solar cell
KW - zinc oxide
UR - http://www.scopus.com/inward/record.url?scp=85199265561&partnerID=8YFLogxK
U2 - 10.33263/BRIAC143.075
DO - 10.33263/BRIAC143.075
M3 - Article
AN - SCOPUS:85199265561
SN - 2069-5837
VL - 14
JO - Biointerface Research in Applied Chemistry
JF - Biointerface Research in Applied Chemistry
IS - 3
M1 - 75
ER -