Open AccessStructural, morphological, optical, and electrical properties of TiO2/ZnO rods multilayer films as photoanode on dye-sensitized solar cells
Author(s) -
Siti Wihdatul Himmah,
Markus Diantoro,
Herlin Pujiarti,
S. K. G. Tiana,
Nasikhudin Nasikhudin,
Arif Hidayat,
Ahmad Taufiq
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1816/1/012095
Subject(s) - materials science , dye sensitized solar cell , zinc nitrate , rod , nanoparticle , chemical engineering , zinc , nanorod , nanotechnology , layer (electronics) , metallurgy , chemistry , medicine , alternative medicine , electrode , pathology , engineering , electrolyte
TiO 2 nanoparticles have been widely studied as photoanode materials in DSSC due to the high surface area. Still, TiO 2 nanoparticles exhibit weak light scattering which limiting red light absorption. On the other hand, one-dimensional structures such as rods demonstrate an increase in the light scattering. ZnO has undergone many structural modifications and exhibits higher mobility than TiO 2 . The combining characteristics of TiO 2 nanoparticles and ZnO rods can improve photoanode performance. Therefore, the efficiency of DSSC can be increased. The TiO 2 /ZnO rods photoanodes were fabricated in the following steps. First, TiO 2 nanoparticles were deposited on the conductive surface of ITO-Glass to form a double layer using the spin-coating method. Meanwhile, we prepare ZnO rods grown on the TiO 2 nanoparticles layer using the hydrothermal method by varying Zinc Nitrate Tetrahydrate precursors (20; 30; 50; and 100 mM). Several physical characterizations have been carried out, including XRD, SEM, FTIR, UV-VIS, and Keithley SourceMeter 2400 equipped with a solar simulator 100 mW/cm 2 . Based on the results, the increasing concentration of Zinc Nitrate Tetrahydrate precursor affects the structural, morphological, optical, and electrical properties of TiO 2 /ZnO rods multilayer photoanode and reaches the optimum point at 50 mM.