Preparation and Performance of ZnO and ZnO/MnO2 Nanostructures
as Anode Electrodes in DSSCs
الباحث الأول:
Suaad Abd Mahdi Abd Noor
الباحثين الآخرين:
Amer Muosa Juda Al-Shamari
المجلة:
Indonesian Journal of Chemistry (ISSN 1411-9420 /e-ISSN 2460-1578) - Chemistry Department, Universit
تاريخ النشر:
Dec. 6, 2023
مختصر البحث:
Abstract: Nanoparticles and nanocomposites prepared by the hydrothermal method
(ZnO, ZnO/MnO2) were used to build dye-sensitized solar cells (DSSCs), which were used
as photoelectrodes using two natural dyes as the absorbent media: red (Hibiscus…
Abstract: Nanoparticles and nanocomposites prepared by the hydrothermal method
(ZnO, ZnO/MnO2) were used to build dye-sensitized solar cells (DSSCs), which were used
as photoelectrodes using two natural dyes as the absorbent media: red (Hibiscus
sabdariffa) and green (Apium graveolens). The results showed the efficiency of the green
dye in DSSCs is superior to the red dye in terms of conversion efficiency (η). The purpose
of the study is to improve the performance of dye solar cells. The properties of
nanomaterials were studied by X-ray diffraction (XRD), scanning electron microscopy
(FE-SEM), and transmission electron microscopy (TEM) for the analysis of ZnO NPs and
ZnO/MnO2, whereas the sizes of the prepared materials are within the size of 1–100 nm.
The solar cell parameters were obtained from simple (I-V) measurements for
nanomaterials prepared using two-dye DSSCs where Isc represents the short circuit
current through the solar cell when the voltage across the solar cell is zero, and Voc
represents the open circuit voltage across the solar cell and is the maximum voltage
available from the solar cell. The photoelectrochemical properties of the two dye DSSCs
in this study were calculated at 22.53 mW/cm2
of the light intensity.
