Experimental investigation of dye sensitized solar cells, formed with obtaining thin films by using undoped and Nb‐doped TiO ₂ precursors

Abstract

Summary In this study, the effect of the working electrode obtained by using different methods and chemicals on the efficiency of dye‐sensitized solar cells (DSSC) is examined. The aim here is to carry out the undoped and metal‐doped TiO2 deposition process by the ultrasonic spray pyrolysis (USP) method. Titanium dioxide (TiO2) semiconductor is selected to form the working electrode and Niobium (Nb) is used for metal doping. The working electrode is obtained by spraying the previously prepared undoped and Nb‐doped TiO2 solution onto fluorine‐doped tin oxide (FTO) glass by USP Technique. The working electrodes obtained are used to fabricate DSSC. XRD, SEM, and EDS analyses are performed to examine the surface morphology, crystal structure, and elemental properties of conductive glasses. By assembling the components as a sandwich, two different cells are formed. The efficiency of the cell which has an undoped TiO2 thin film is 0.088%, and the efficiency of the cell which has Nb‐doped TiO2 thin film is 0.375%. These results proved that the doped cell is more efficient than the undoped cell and that it can be produced more economically.

Efficiency and stability improvement of natural dye‐sensitized solar cells using the electrospun composite of TiO 2 nanofibres doped by the bio‐Ca nanoparticles

“…The most effective procedures to modify nanocrystalline TiO 2 particles consist of TiCl 4 post-treatment, 13,14 surface coating, 15,16 and ions doping. 17,18 The ions doping can effectively modulate the electrical and optical properties through bandgap engineering. 19,20 This approach can facilitate charge mobility and suppress the recombination of photo-induced hole-electron pairs, thereby improving the DSSCs efficiency.…”

“…In the past two decades, several strategies have been developed to optimize TiO 2 film that can be partitioned into two paths; control the morphology and modification of the TiO 2 nanostructures composition. The most effective procedures to modify nanocrystalline TiO 2 particles consist of TiCl 4 post‐treatment, 13,14 surface coating, 15,16 and ions doping 17,18 . The ions doping can effectively modulate the electrical and optical properties through bandgap engineering 19,20 .…”

Hydrogen production optimization from methanol partial oxidation via ultrasonic sprays using response surface methodology and analysis of variance

“…This means that POM can be operated in smaller reactors 18 . The stoichiometric reaction of POM can be expressed as, Ultrasonic instruments are widely applied in medical, chemical, and agricultural industries, and even in the performance optimization of solar cells 19,20 . Ultrasonic sprays have become one of the most common experimental tools because it is cost‐efficient and easy to apply.…”

“…Ultrasonic instruments are widely applied in medical, chemical, and agricultural industries, and even in the performance optimization of solar cells. 19,20 Ultrasonic sprays have become one of the most common experimental tools because it is cost-efficient and easy to apply. Bastwros and Kim 21 studied the SiC nanoparticles deposition via ultrasonic sprays and used them in laminatedmetal composite synthesis.…”