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Englishhree new beta-substituted Zn-II-tetraarylporphyrinate dyes (1-3), bearing octyloxy chains at the o,o-, o,p- or o-positions of the four phenyl groups respectively, were synthesized, characterized and investigated as sensitizers for DSSCs. In particular, the alkoxy group position strongly influences their electronic absorption and electrochemical features. Improvements in power conversion efficiency ranging from 40% to 80% were obtained with respect to a reference dye (4) characterized by the presence of sterically bulky t-butyl groups at the m-positions.
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| Titolo: | Highly improved performance of Zn-II tetraarylporphyrinates in DSSCs by the presence of octyloxy chains in the aryl rings |
| Autori: | |
| Data di pubblicazione: | 2015 |
| Abstract: | hree new beta-substituted Zn-II-tetraarylporphyrinate dyes (1-3), bearing octyloxy chains at the o,o-, o,p- or o-positions of the four phenyl groups respectively, were synthesized, characterized and investigated as sensitizers for DSSCs. In particular, the alkoxy group position strongly influences their electronic absorption and electrochemical features. Improvements in power conversion efficiency ranging from 40% to 80% were obtained with respect to a reference dye (4) characterized by the presence of sterically bulky t-butyl groups at the m-positions. |
| Handle: | http://hdl.handle.net/11571/1369329 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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