New Efficient Ruthenium Sensitizers with Unsymmetrical Indeno[1,2-b]thiophene or a Fused Dithiophene Ligand for Dye-Sensitized Solar Cells
- Authors
- Kim, Jeum-Jong; Lim, Kimin; Choi, Hyunbong; Fan, Shengqiang; Kang, Moon-Sung; Gao, Guohua; Kang, Hong Seok; Ko, Jaejung
- Issue Date
- 20-9월-2010
- Publisher
- AMER CHEMICAL SOC
- Citation
- INORGANIC CHEMISTRY, v.49, no.18, pp.8351 - 8357
- Indexed
- SCIE
SCOPUS
- Journal Title
- INORGANIC CHEMISTRY
- Volume
- 49
- Number
- 18
- Start Page
- 8351
- End Page
- 8357
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/115666
- DOI
- 10.1021/ic1009658
- ISSN
- 0020-1669
- Abstract
- Two novel ruthenium sensitizers containing unsymmetrical indeno[1,2-1Athiophene or a fused dithiophene unit in the ancillary ligand have been designed and synthesized. The photovoltaic performance of JK-188 using an electrolyte consisting of 0.6 M 1,2-dimethy1-3-propylimidazolium iodide, 0.05 M12, 0.1 M Lil, 0.05 M guanidinium thiocyanate, and 0.5 M tert-butylpyridine in acetonitrile revealed a short-circuit photocurrent density of 18.60 mA/cm2, an open-circuit voltage of 0.72 V, and a fill factor of 0.71, yielding an overall conversion efficiency of 9.54%. The cell exhibits a remarkable stability under 1000 h of light soaking at 60 degrees C using a quasi-solid-state electrolyte consisting of 5 wt % poly(vinylidenefluoride-co-hexafluoropropylene), 0.6 M 1-propy1-2,3-dimethylimidazolium iodide, 0.5 M N-methylbenzimidazole, and 0.1 M 12 in 3-methoxypropionitrile, retaining 97% of the initial efficiency (7.38%).
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Collections - College of Science and Technology > Department of Advanced Materials Chemistry > 1. Journal Articles
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