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| 題名: | A highly conjugated benzimidazole carbene-based ruthenium sensitizer for dye-sensitized solar cells |
| 作者: | 李文仁;Ho, Shih-Yu;Su, Chaochin;Li, Chung-Yen;Prabakaran, Kumaresan;Shen, Ming-Tai;Chen, Ying-Fan;Chang, Wei-Chun;Tingare, Yogesh S.;Akula, Suribabu;Tsai, Sheng-Han;Li, Wen-Ren |
| 貢獻者: | 理學院化學學系 |
| 關鍵詞: | carbene ligands;Chemistry;Dyes;dyes/pigments;Efficiency;Ligands;Photovoltaic cells;ruthenium;sensitizers;solar cells;Solar energy |
| 日期: | 2013-09-01 |
| 上傳時間: | 2026-04-21 14:11:22 (UTC+8) |
| 出版者: | John Wiley and Sons Ltd;Weinheim: WILEY-VCH Verlag |
| 摘要: | 摘要： A new type of carbene‐based ruthenium sensitizer, CB104, with a highly conjugated ancillary ligand, diphenylvinylthiophene‐substituted benzimidazolepyridine, was designed and developed for dye‐sensitized solar cell applications. The influence of the thiophene antenna on the performance of the cell anchored with CB104 was investigated. Compared with the dye CBTR, the conjugated thiophene in the ancillary ligand of CB104 enhanced the molar extinction coefficient of the intraligand π–π* transition and the intensity of the lower energy metal‐to‐ligand charge‐transfer band. However, the incident photon‐to‐current conversion efficiency spectrum of the cell anchored with CB104 (0.15 mM) showed a maximum of 63 % at 420 nm. The cell sensitized with the dye CB104 attained a power conversion efficiency of 7.30 %, which was lower than that of the cell with nonconjugated sensitizer CBTR (8.92 %) under the same fabrication conditions. The variation in the performance of these two dyes demonstrated that elongating the conjugated light‐harvesting antenna resulted in the reduction of short‐circuit photocurrent density, which might have been due to the aggregation of dye molecules. In the presence of a coabsorbate, chenodeoxycholic acid, the CB104‐sensitized cell exhibited an enhanced photocurrent density and achieved a photovoltaic efficiency of 8.36 %. Harnessing light: A highly conjugated carbene‐based ruthenium complex, CB104 (see picture), has been synthesized and used for dye‐sensitized solar cell applications. In the presence of a coabsorbate, the CB104‐sensitized cell exhibited an enhanced photocurrent density and photovoltage and achieved a photovoltaic efficiency of 8.36 %.
其他題名： Chem. Asian J
出版者： Weinheim: WILEY-VCH Verlag
出版日期： 2013-09
出處： Chemistry, an Asian journal, 2013-09, Vol.8 (9), p.2196-2203
版權： Copyright © 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim
版權： Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
版權： Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
識別號： ISSN: 1861-4728
識別號： ISSN: 1861-471X
識別號： EISSN: 1861-471X
識別號： DOI: 10.1002/asia.201300447
識別號： PMID: 23832840 |
| 顯示於類別: | [化學學系] 期刊論文
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