Akademik Veri Yönetim Sistemi
Gümüşhane Üniversitesi Fen Bilimleri Enstitüsü Dergisi, cilt.11, sa.4, ss.1315-1323, 2021 (Hakemli Dergi)
The effects of surface modification of CdS through organic Eosin-Y, indoline D205, and Ru-based complex N719 and
N3 dyes on CdS-based hybrid solar cells were studied. Chemical bath deposition (CBD) and doctor blade methods were
in turn employed to fabricate the CdS specimens on Indium-Tin Oxide (ITO) covered glass substrates. P3HT material
with and without dye coatings was covered through a spin-coater on the surface of CdS specimens. Ag paste was then
deposited on the surface of P3HT to obtain hybrid solar cells. Structural analysis indicated that CdS powders showed a
cubic growth with the preferred orientation of (111). Morphological analysis demonstrated that CdS powders exhibited
hierarchical morphology and the morphology turned to granular structure with some porosity upon deposition of both N3
dye and P3HT layers. Absorption plots indicated that Eosin-Y dye loading led to a rise in the absorbance values of CdS
specimens. After dye loading, photoluminescence data of CdS-based heterostructure illustrated a decrement in the
luminescence intensity, implying that effective exciton dissociation was obtained. Current density-voltage (J-V)
characteristics of the hybrid solar cells depicted that the best overall efficiency was observed for Eosin-Y-modified cell
as 0.135%. This proved that surface modification by Eosin-Y dye led to a better interfacial contact between CdS and
P3HT bilayer due to the enhancement in the charge separation.