Application of Down-conversion Materials based on Trivalent Europium Ion-doped Fluoroborotellurite Glass for Transparent Dye-sensitized Solar Cell

The development of down-conversion materials on fluoroborotellurite glass and its application in transparent dye-sensitized solar cells have been reported in the present work. The down-conversion layer Eu³⁺: glass was prepared from 0.0, 0.1, 1.0, and 1.5 of Eu₂O₃ with B₂O₃, TeO₂, ZnF₂, and BaO using conventional melt and quenching technique. Meanwhile, the fabrication of transparent DSSC was performed using a screen printing technique. The absorption and the emission spectra of the Eu³⁺:glass were characterized, while the electrical performance of the DSSC coupled with Eu³⁺:glass was measured via current-voltage (I-V) characterization. The emission of Eu3+:glass was found at 588, 613, 649, and 702 nm under an excitation wavelength of 392 nm, while the absorption of dye solution was recorded from 330 to 800 nm. The results show that further investigation of Eu3+:glass coupled with other types of dye solutions is required to find the most suitable DSSC for Eu3+:glass as a DC layer.