Cylindrical aggregates of 5,5',6,6'-tetrachlorobenzimida-carbocyanine amphiphilic derivatives: Structure-related optical properties and exciton dynamics
The static and time-resolved optical response of 5,5′,6,6′-tetrachlorobenzimidacarbocyanine chromophore-based tubular double-wall molecular aggregates is studied. The linear dichroism and absorption spectra have the same basic structure for all aggregates investigated essentially showing a set of na...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2006-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/IJP/2006/29623 |
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| _version_ | 1832559483777187840 |
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| author | A. Pugzlys P. R. Hania R. Augulis K. Duppen P. H. M. van Loosdrecht |
| author_facet | A. Pugzlys P. R. Hania R. Augulis K. Duppen P. H. M. van Loosdrecht |
| author_sort | A. Pugzlys |
| collection | DOAJ |
| description | The static and time-resolved optical response of 5,5′,6,6′-tetrachlorobenzimidacarbocyanine chromophore-based tubular double-wall molecular aggregates is studied. The linear dichroism and absorption spectra have the same basic structure for all aggregates investigated essentially showing a set of narrow and highly polarized bands originating from inner and outer wall excitations. The exact positions and strengths of absorption bands are influenced by the choice of side groups and various additives. Time-resolved fluorescence measurements show a substantial speeding of the fluorescence decay upon aggregation, mainly resulting from collective effects. Pump-probe experiments evidence slow inner-to-outer and fast outer-to-inner wall energy transfers between the walls of the tubules. |
| format | Article |
| id | doaj-art-4402dcaffa1942f5b7dedd03e11c726a |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2006-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-4402dcaffa1942f5b7dedd03e11c726a2025-02-03T01:29:53ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2006-01-01200610.1155/IJP/2006/2962329623Cylindrical aggregates of 5,5',6,6'-tetrachlorobenzimida-carbocyanine amphiphilic derivatives: Structure-related optical properties and exciton dynamicsA. Pugzlys0P. R. Hania1R. Augulis2K. Duppen3P. H. M. van Loosdrecht4Materials Science Centre, University of Groningen, Nijenborgh 4, Groningen, AG 9747, The NetherlandsMaterials Science Centre, University of Groningen, Nijenborgh 4, Groningen, AG 9747, The NetherlandsMaterials Science Centre, University of Groningen, Nijenborgh 4, Groningen, AG 9747, The NetherlandsMaterials Science Centre, University of Groningen, Nijenborgh 4, Groningen, AG 9747, The NetherlandsMaterials Science Centre, University of Groningen, Nijenborgh 4, Groningen, AG 9747, The NetherlandsThe static and time-resolved optical response of 5,5′,6,6′-tetrachlorobenzimidacarbocyanine chromophore-based tubular double-wall molecular aggregates is studied. The linear dichroism and absorption spectra have the same basic structure for all aggregates investigated essentially showing a set of narrow and highly polarized bands originating from inner and outer wall excitations. The exact positions and strengths of absorption bands are influenced by the choice of side groups and various additives. Time-resolved fluorescence measurements show a substantial speeding of the fluorescence decay upon aggregation, mainly resulting from collective effects. Pump-probe experiments evidence slow inner-to-outer and fast outer-to-inner wall energy transfers between the walls of the tubules.http://dx.doi.org/10.1155/IJP/2006/29623 |
| spellingShingle | A. Pugzlys P. R. Hania R. Augulis K. Duppen P. H. M. van Loosdrecht Cylindrical aggregates of 5,5',6,6'-tetrachlorobenzimida-carbocyanine amphiphilic derivatives: Structure-related optical properties and exciton dynamics International Journal of Photoenergy |
| title | Cylindrical aggregates of 5,5',6,6'-tetrachlorobenzimida-carbocyanine amphiphilic derivatives: Structure-related optical properties and exciton dynamics |
| title_full | Cylindrical aggregates of 5,5',6,6'-tetrachlorobenzimida-carbocyanine amphiphilic derivatives: Structure-related optical properties and exciton dynamics |
| title_fullStr | Cylindrical aggregates of 5,5',6,6'-tetrachlorobenzimida-carbocyanine amphiphilic derivatives: Structure-related optical properties and exciton dynamics |
| title_full_unstemmed | Cylindrical aggregates of 5,5',6,6'-tetrachlorobenzimida-carbocyanine amphiphilic derivatives: Structure-related optical properties and exciton dynamics |
| title_short | Cylindrical aggregates of 5,5',6,6'-tetrachlorobenzimida-carbocyanine amphiphilic derivatives: Structure-related optical properties and exciton dynamics |
| title_sort | cylindrical aggregates of 5 5 6 6 tetrachlorobenzimida carbocyanine amphiphilic derivatives structure related optical properties and exciton dynamics |
| url | http://dx.doi.org/10.1155/IJP/2006/29623 |
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