| Автор | Nguyen, Hong Minh |
| Автор | Nguyen, Duc Nghia |
| Автор | Kim, Nakjoong |
| Дата выпуска | 2010-06-01 |
| dc.description | Three heteroleptic ruthenium complexes cis-[Ru(H<sub>2</sub>dcbpy)(L)(NCS)<sub>2</sub>], where H<sub>2</sub>dcbpy is 4,4′-dicarboxy-2,2′-bipyridine and L is 4-(4-(N,N-di-(p-anisyl)amino)styryl)-4′-methyl-2,2′-bipyridine (Dye-1), 4-(4-(N,N-di-(p-hexyloxyphenyl)amino)styryl)-4′-methyl-2,2′-bipyridine (Dye-2) or 4-(5-(N,N-di-(p-hexyloxyphenyl)-amino)-thiophene-2-yl-ethenyl)-4′-methyl-2,2′-bipyridine (Dye-3) have been synthesized and characterized. The influence of differently conjugated bipyridine ligands on these complexes was studied using UV-Vis spectroscopy and cyclic voltammetry. These heteroleptic complexes show appreciably broad absorption ranges and quite high extinction coefficients. These new dyes were used as photosensitizers in nanocrystalline TiO<sub>2</sub> dye-sensitized solar cells. It was found that the difference in light-harvesting property between Dye-1, Dye-2 and Dye-3 is associated mainly with molar extinction coefficients and alignment of the HOMO–LUMO energy levels. The power conversion efficiencies of solar cells based on Dye-1 and Dye-2 are 4.21% and 4.41%, while Dye-3 delivered a lower efficiency of 2.88% under the same device fabrication and measurement conditions. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Копирайт | 2010 Vietnam Academy of Science & Technology |
| Название | Improved performance of dye-sensitized solar cells by tuning the properties of ruthenium complexes containing conjugated bipyridine ligands |
| Тип | paper |
| DOI | 10.1088/2043-6254/1/2/025001 |
| Electronic ISSN | 2043-6262 |
| Print ISSN | 2043-6254 |
| Журнал | Advances in Natural Sciences: Nanoscience and Nanotechnology |
| Том | 1 |
| Первая страница | 25001 |
| Последняя страница | 25006 |
| Аффилиация | Nguyen, Hong Minh; Polymer Division, Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi, Vietnam |
| Аффилиация | Nguyen, Duc Nghia; Polymer Division, Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi, Vietnam |
| Аффилиация | Kim, Nakjoong; Organic Photonic and Electronic Materials Laboratory, Department of Chemistry, Hanyang University, 17-Haengdang-dong, Seongdong-gu, Seoul, 133-791, Korea |
| Выпуск | 2 |
