| Autor: |
Setiawan, T, Subekti, W Y, Nur, S S, Ilmiah, K, Ulfa, S M |
| Zdroj: |
IOP Conference Series: Materials Science and Engineering; January 2018, Vol. 299 Issue: 1 p012073-012073, 1p |
| Abstrakt: |
The DSSC prototype using activated carbon (AC) and natural dye from Robusta coffee bean peels have been investigated. The natural dye obtained from the extraction of Robusta coffee bean peels is identified as anthocyanin by UV-Vis spectrophotometer at maximum wavelength 219.5 nm and 720.0 nm in methanol. From the FT-IR analysis, the vibration of O-H observed at 3385 cm-1, C=O at 1618 cm-1, and C-O-C at 1065 cm-1. The counter electrode prepared by calcined the peels at 300degC. Surface analyser of AC showed the larger surface area compared prior activation. The DSSC prototype was prepared using FTO glass (2x2 cm) coated with carbon paste in various thickness. The working electrode is coated with the TiO2 paste. The optimum voltage measured was 395mV (300 uL of CA), 334 mV (200 uL AC), and 254 mV (100 uL AC). From this result, we understand that the thickness of counter electrode influent the voltage of the DSSC. |
| Databáze: |
Supplemental Index |
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