Yuly Kusumawati : The Study of Ruthenium Dyes Endowed with Alkyl Chain for DSSC Sensitizer

Yuly Kusumawati S.Si, M.Si

Year

2016

Published in

International Conference on Educational and Reeserch Development (ICERD)

Authors

External link

Type

Seminar Internasional

Keywords

DSSC, Ruthenium dyes, cobalt, ZnO


Abstract

Two kinds of ruthenium dyes endowed with alkyl chain, TG6 and Z907 have been used as sensitizer for dye sensitized solar-cells (DSSCs). The cells composed of nanoparticle ZnO which has rod-like structure as a photoelectrode and were coupled with two kinds of redox shuttle: triiodide/iodide and cobalt-bipyridyl(II)/(III) as electrolyte composition. The cell that was sensitized by TG6 and coupled with triiodide/iodide redox shuttle show a better result (reached a Power Conversion Efficiency (PCE) of 2.69%) rather than one that was sensitized by Z907 and coupled by the same redox shuttle (reached a PCE of 2.16%). On contrary, for the cells that were coupled by cobalt-based redox shuttle, Z907 sensitizing shows a better result (reached a PCE of 1.72%) compare to TG6 one (reached a PCE of 1.32%). The absorption measurement in the UV-Visible range shows that the TG6 has a boarder spectrum compare to that one of Z907. This result explains that TG6 cells show a better performance compare to that one Z907 when coupled with triiodide/iodide redox shuttle. But the orientation of alkyl chain on TG6 seems make a hindrance for cobalt species to diffuse through the semiconductor pores.