Studi Komparasi Penggunaan TiO2 Anatase dan P25 sebagai Anoda pada Sel Surya Tersensitasi Bixin

Abstract

Penelitian ini dilakukan untuk menentukan kinerja sel surya yang menggunakan TiO2anatase dan TiO2-P25 sebagai anoda. Bixin digunakan sebagai sensitizer. Bixin diekstraksi dan diisolasi dari biji kesumba. Bixin dianalisis menggunakan spektrofotometer UV-Vis dan FTIR. Hasil analisis menggunakan spektrofotometer UV-Vis menunjukkan adanya 3 puncak karakteristik bixin pada 488, 459, 430 nm. Spektra FTIR bixin ditandai dengan adanya serapan pada bilangan gelombang 3183 cm -1 mengindikasikan vibrasi renggang -OH yang berasal dari gugus karboksilat; pada 2955, 2924, dan 2852 cm -1 vibrasi renggang H-C-H; pada 1716 cm -1 vibrasi renggang C=O; pada 1608 cm -1 vibrasi tekuk O-H; pada 1563 dan 1518 cm -1 vibrasi renggang C=C (alkena); pada 1379 cm -1 vibrasi tekuk C-H; pada 1255 cm -1 vibrasi renggang C-O; pada 1161 cm -1 vibrasi simetri dan asimetri C-O-C (kelompok ester); serta pada 1012 cm -1 vibrasi renggang C-H. Kinerja sel surya yang menggunakan TiO2-antase menunjukkan efisiensi konversi energi maksimum yang lebih tinggi (0,027%) jika dibandingkan dengan TiO2-P25 (0,006%) di bawah intensitas cahaya 100 W/m 2 .

Performance test of Zn-astaxanthin complex-sensitized solar cell: effect of light intensity on open-circuit voltage and short-circuit current values

“…Park [ 21 ] reported that anatase TiO 2 has a higher incident photon to current conversion efficiency (IPCE) value than rutile TiO 2 . Our previous research reported the adsorption of bixin as a sensitizer on the TiO 2 anatase surface followed the model of Langmuir (chemistry interaction), and the performance test of DSSC showed higher energy conversion efficiency than commercial TiO 2 P-25 [ 19 , 22 ].…”

The Effect of Cell Surface Area on the Effectivity and Reusability of Bixin Sensitized Solar Cells

“…DSSC work analysis was carried out using an Agilent 34401A 6.5 digits multimeter by varying the intensity of the light given to the DSSC device. The intensity variations were 0, 5,6,7,8,9,10,20,30,40,50,60,70,80,90, and 100 mW cm -2 . The solar cells with the highest efficiency were chosen to irradiate periodically for several days until the solar cells died to measure reusability.…”

“…The peak that appears at a wavelength of 488 nm and 459 nm shows the existence of electron transitions from π to π* resulting from conjugated bonds C=C. While the peak at a wavelength of 434 nm appears because of the electron transition from n to π * produced by carbonyl group C=O [7,14,20].…”

“…The three cells that have become further illuminated with halogen lights and measured the Voc value, a large voltage produced when the current is equal to 0. Also measured the Isc cell, which is a large current generated when the voltage is worth 0 on the variation of light intensity (5,6,7,8,9,10,20,30,50,60,70,80,90, and 100 mW cm -2 ). From the results of the measurements, the graphics are made as in Figure 6.…”