Doping of magnesium and aluminum ions on tio2 as photoanode using the doctor blade method to increase dssc efficiency

S. D.N. Anisa, F. Nurosyid, Y. Iriani, N. D. Puspitasari, U. Riyadi

Research output: Contribution to journalConference articlepeer-review


Titanium dioxide (TiO2) is the most commonly used photoanode material for working electrodes in DSSC. TiO2 was chosen because of its stable performance. The electron transport process in the pores of TiO2 nanoparticles occurs randomly. Thus, it will cause a charge recombination process, decreasing the device's performance. TiO2 needs to be modified by the addition of doping. The dopings used in this study are magnesium and aluminum ions with varying concentrations of 4%, 5%, and 6% using the doctor blade method. The characterizations carried out include absorbance and bandgap with UV-Vis Spectrophotometer, Morphology with SEM, and efficiency of DSSC with I-V Keithley Meter. The results of UV-Vis characterization obtained the highest absorbance peak when Al and Mg-doped in the wavelength range (250-600) nm. The band gap energy value is at 5% concentration of Mg doping in 1.9 eV and 5% doping of Al concentration in 2.4 eV. The results of the SEM test showed that morphological results obtained greater agglomeration along with the addition of doping. Efficiency results were obtained when doping Al concentrations of 4%, 5%, 6% respectively are 0.205%, 0.415%, 0.275% and when doping of Mg concentrations are 4%, 5%, 6% respectively 0.03%, 0 0.06%, 0.018%.

Original languageEnglish
Article number012020
JournalJournal of Physics: Conference Series
Issue number1
Publication statusPublished - 2023
Externally publishedYes
Event7th International Conference on Advanced Materials for Better Future, ICAMBF 2022 - Virtual, Online, Indonesia
Duration: 17 Oct 202218 Oct 2022


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