Characteristics Ruthenium (N719) as a Photosensitizer in Dye-Sensitized Solar Cells (DSSC)

<p class="AbstractEnglish"><strong>Abstract:</strong> The study aims to characterize Ruthenium as a photosensitizer in Dye-Sensitized Solar Cells (DSSC). Samples are made in the structure of the working electrode pair Sandwich and the opponent electrode. Sample absorbancy test using UV-Visible LAMBDA 25 spectrophotometer and test current and voltage characterization (I-V) using Keithley 2602A. The TiO₂ deposition method uses the drop and soaks method. The results of the study showed that the maximum absorbancy in the high dye ruthenium appeared at the two peaks at = 448 nm and = 580 nm. While I-V curve measurements showed great efficiency that resulted in ruthenium dye with concentrations of 0.1, 0.5, and 1 in a row were 0, 12%, 0.186%, and 0.26%. These results show that higher concentrations of ruthenium dye can increase the value of the resulting efficiency.</p><p class="AbstrakIndonesia"><strong><span lang="EN-GB">Abstrak:</span></strong><span lang="EN-GB"> Penelitian ini bertujuan untuk mengkarakterisasi Ruthenium sebagai fotosensitizer pada Dye-Sensitized Solar Cells (DSSC). Sampel dibuat dalam struktur kerja pasangan elektroda Sandwich dan elektroda lawan. Uji absorbansi sampel menggunakan spektrofotometer UV-Visible LAMBDA 25 dan uji karakterisasi arus dan tegangan (I-V) menggunakan Keithley 2602A. Metode pengendapan TiO2 menggunakan metode drop and soaks. Hasil penelitian menunjukkan bahwa absorbansi maksimum pada zat warna rutenium tinggi muncul pada dua puncak yaitu = 448 nm dan = 580 nm. Sedangkan pengukuran kurva I-V menunjukkan efisiensi yang sangat baik yang menghasilkan pewarna rutenium dengan konsentrasi 0,1, 0,5, dan 1 berturut-turut adalah 0, 12%, 0,186%, dan 0,26%. Hasil tersebut menunjukkan bahwa semakin tinggi konsentrasi zat warna rutenium dapat meningkatkan nilai efisiensi yang dihasilkan.</span></p>

Chiroptical detection of a model ruthenium dye in water by circularly polarized-electrochemiluminescence

We demonstrate the possibility to detect selectively the two single enantiomers of a model [Ru(bpy)3]2+-based dye by circularly polarized-electrochemiluminescence (CP-ECL).

Study of Electrochemical Deposition Process of Graphene Oxide on DSSC TiO2 Based Photoanode

Graphene oxide (GO) layer has been successfully deposited on to ITO/TiO2 substrate by electrochemical deposition. Deposition process of GO layers were carried out in one, three, and six cycles in the voltage range of-1.6 to 0 volt and scan rate of 50 mV/s. The variation of cycles was performed, in order to study the deposition process relates to device performances. TiO2 macro-channel (TiO2μc) also introduced in photoanode system and it required annealing treatment up to 500°C. The oxygen content in GO will be reduced by annealing treatment and the reduced-GO (rGO) layer was trapped inside of TiO2 mesoporous. The cyclic voltammetry curves of blank sample and GO deposition were also observed in order to ensure the GO deposition process was successfully done. After immersing in ruthenium dye overnight, the ITO/TiO2/rGO/TiO2-μc was sandwiched with Pt/FTO as counter electrode to configure dye sensitized solar cell (DSSC) structure. The photovoltaic characteristics, morphology, and UV-Vis absorbance of each layer were investigated. A highest DSSC efficiency (η= 3.34 %) was achieved by 3-cycles of GO deposition process of photoanode with photocurrent density (Jsc) of 9.94 mA/cm2, open voltage (Voc) of 0.70 V and fill factor (FF) of 48.69% under 100 mW/cm2 of light irradiation.