Carbene-based ruthenium photosensitizers

Huei Siou Chen, Wei Chun Chang, Chaochin Su, Ting Yu Li, Nai Mu Hsu, Yogesh S. Tingare, Chung Yen Li, Jun Han Shie, Wen Ren Li

研究成果: 雜誌貢獻期刊論文同行評審

34 引文 斯高帕斯(Scopus)

摘要

A new series of N-heterocyclic carbene (NHC)-pyridine ruthenium complexes incorporating a carbene unit as an ancillary ligand were designed and successfully synthesized by using simple synthetic methods. The photophysical, electrochemical and photovoltaic properties of these NHC-pyridine based ruthenium complexes were investigated. These complexes showed photoelectric conversion efficiencies in the range of 6.43 ∼ 7.24% under the illumination of AM 1.5 (100 mW cm-2). Interestingly, the modifications on the ancillary ligand of these sensitizers by removal of an alkoxyl group and replacement of the octyl chain with a 3,5-difluorobenzyl group showed a 13% increase in the conversion efficiency for the CifPR dye. These results demonstrated that structural modifications on the NHC-pyridine ancillary ligand of ruthenium complexes results in dye-sensitized solar cells exhibiting a comparable cell performance to that obtained using the standard N719 dye.

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頁(從 - 到)6765-6770
頁數6
期刊Dalton Transactions
40
發行號25
DOIs
出版狀態已出版 - 7 7月 2011

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