Ruthenium-Based Sensitizers for Dye-Sensitized Solar Cells
碩士 === 國立臺灣師範大學 === 化學系 === 97 === A series of 2,2'-bipyridine derivatives, incorporating 2- or 3-substituted carbazole, or fluorene unit, have been synthesized via Wittig-Horner reaction and Suzuki coupling. These compounds have been successfully used as ligands for Grätzel-type ruthenium dyes...
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ndltd-TW-097NTNU50650622015-10-13T12:04:58Z http://ndltd.ncl.edu.tw/handle/17097104577967317890 Ruthenium-Based Sensitizers for Dye-Sensitized Solar Cells 染料敏化太陽能電池之釕化合物 陳日新 碩士 國立臺灣師範大學 化學系 97 A series of 2,2'-bipyridine derivatives, incorporating 2- or 3-substituted carbazole, or fluorene unit, have been synthesized via Wittig-Horner reaction and Suzuki coupling. These compounds have been successfully used as ligands for Grätzel-type ruthenium dyes. The metal-to-ligand charge-transfer bands in these complexes appeared in the range of 530~550 nm. A prominent red shift of the MLCT band was observed as an olefinic entity was inserted between the 2,2'-bipyridine and the carbazole or fluorene unit to increase the effective conjugation length. Dye-sensitized solar cells based on these sensitizers exhibited good performance. Among them, Ru-vinyl-fluorene-based cell had the best performance :η (power conversion efficiency), 4.90%;VOC (open-circuit voltage), 0.63 V;JSC (short-circuit current), 11.14 mA/cm2;FF (fill factor), 0.70. The conversion efficiency reaches ~69% of the standard device (η=7.11%) based on N719 (cis-bis(isothiocyanato)bis(2,2'-bipyridyl-4,4'-dicarboxylato)-ruthenium (II) bis-tetrabutylammonium) fabricated and measured under similar condition. The more effective light-harvesting and higher dye density on TiO2 may be the main reasons for better efficiency of Ru-vinyl-fluorene-based cell. 葉名倉 林建村 學位論文 ; thesis 80 zh-TW |
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碩士 === 國立臺灣師範大學 === 化學系 === 97 === A series of 2,2'-bipyridine derivatives, incorporating 2- or 3-substituted carbazole, or fluorene unit, have been synthesized via Wittig-Horner reaction and Suzuki coupling. These compounds have been successfully used as ligands for Grätzel-type ruthenium dyes. The metal-to-ligand charge-transfer bands in these complexes appeared in the range of 530~550 nm. A prominent red shift of the MLCT band was observed as an olefinic entity was inserted between the 2,2'-bipyridine and the carbazole or fluorene unit to increase the effective conjugation length. Dye-sensitized solar cells based on these sensitizers exhibited good performance. Among them, Ru-vinyl-fluorene-based cell had the best performance :η (power conversion efficiency), 4.90%;VOC (open-circuit voltage), 0.63 V;JSC (short-circuit current), 11.14 mA/cm2;FF (fill factor), 0.70. The conversion efficiency reaches ~69% of the standard device (η=7.11%) based on N719 (cis-bis(isothiocyanato)bis(2,2'-bipyridyl-4,4'-dicarboxylato)-ruthenium (II) bis-tetrabutylammonium) fabricated and measured under similar condition. The more effective light-harvesting and higher dye density on TiO2 may be the main reasons for better efficiency of Ru-vinyl-fluorene-based cell.
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葉名倉 |
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葉名倉 陳日新 |
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陳日新 |
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陳日新 Ruthenium-Based Sensitizers for Dye-Sensitized Solar Cells |
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陳日新 |
title |
Ruthenium-Based Sensitizers for Dye-Sensitized Solar Cells |
title_short |
Ruthenium-Based Sensitizers for Dye-Sensitized Solar Cells |
title_full |
Ruthenium-Based Sensitizers for Dye-Sensitized Solar Cells |
title_fullStr |
Ruthenium-Based Sensitizers for Dye-Sensitized Solar Cells |
title_full_unstemmed |
Ruthenium-Based Sensitizers for Dye-Sensitized Solar Cells |
title_sort |
ruthenium-based sensitizers for dye-sensitized solar cells |
url |
http://ndltd.ncl.edu.tw/handle/17097104577967317890 |
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