On the photophysical and electrochemical studies of dye-sensitized solar cells

Kuo Chuan Ho, Jian Ging Chen, Chia Yuan Chen, Shi Jhang Wu, Jheng Ying Li, Chun Guey Wu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


In this study, the photoelectrochemical characteristics of a ruthenium photosensitizer with an alkyl bithiophene group, designated as CYC-B1, are studied. The effect of mesoporous TiO2 film thickness on the photovoltaic performance of CYC-B1 and N3 dye sensitized solar cells was investigated. The performance of the DSSC fabricated using CYC-B1 dye anchored TiO2 photoelectrode showed a convincing enhancement in cell efficiency when the TiO2 film thickness was increased from 3 μm (eff.=5.41%) to 6 μm (eff.=7.19%). The efficiency of the CYC-B1 sensitized DSSC was maximum at 6 μm of the TiO2 film thickness, reached its limiting value and remained constant up to 53 μm, although a similar trend was also observed for N3 dye sensitized DSSC, however, the maximum efficiency achieved was at 27 μm thickness (eff.=6.75%). The effect of guanidinium thiocyanate (GuSCN) (additive) addition to the electrolyte on the photovoltaic performance of DSSCs based on CYC-B1 was also investigated. Furthermore, the electrochemical impedance spectroscopy (EIS) technique and photo-transient laser method have been employed to analyze the charge transfer resistances (R ct) and the lifetime of the injected electrons on the TiO2 containing different thicknesses.

Original languageEnglish
Title of host publicationSynthesis and Processing of Organic and Polymeric Functional Materials for a Sustainable Energy Economy
Number of pages7
StatePublished - 2008
Event2008 MRS Fall Meeting - Boston, MA, United States
Duration: 1 Dec 20085 Dec 2008

Publication series

NameMaterials Research Society Symposium Proceedings
ISSN (Print)0272-9172


Conference2008 MRS Fall Meeting
Country/TerritoryUnited States
CityBoston, MA


Dive into the research topics of 'On the photophysical and electrochemical studies of dye-sensitized solar cells'. Together they form a unique fingerprint.

Cite this