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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Nagano, Tomoya Harima, Yutaka Inoue, Shogo Imae, Ichiro Ooyama, Yousuke Komaguchi, Kenji Ohshita, Joji |
| Description | Author Affiliation: Ooyama Y ( Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan.) |
| Abstract | A new-type of donor–acceptor π-conjugated (D-π-A) fluorescent dyes NI3–NI8 with a pyridine ring as electron-withdrawing-injecting anchoring group have been developed and their photovoltaic performances in dye-sensitized solar cells (DSSCs) are investigated. The short-circuit photocurrent densities and solar energy-to-electricity conversion yields of DSSCs based on NI3–NI8 are greater than those for the conventional D-π-A dye sensitizers NI1 and NI2 with a carboxyl group as the electron-withdrawing anchoring group. The IR spectra of NI3–NI8 adsorbed on $TiO_{2}$ indicate the formation of coordinate bonds between the pyridine ring of dyes NI3–NI8 and the Lewis acid sites (exposed $Ti^{n+}$ cations) of the $TiO_{2}$ surface. This work demonstrates that the pyridine rings of D-π-A dye sensitizers that form a coordinate bond with the Lewis acid site of a $TiO_{2}$ surface are promising candidates as not only electron-withdrawing anchoring group but also electron-injecting group, rather than the carboxyl groups of the conventional D-π-A dye sensitizers that form an ester linkage with the Brønsted acid sites of the $TiO_{2}$ surface. |
| ISSN | 09476539 |
| e-ISSN | 15213765 |
| Journal | Chemistry - A European Journal |
| Issue Number | 52 |
| Volume Number | 17 |
| Language | English |
| Publisher | Wiley-VCH;ChemPubSoc Europe |
| Publisher Date | 2011-12-23 |
| Publisher Place | Germany |
| Access Restriction | Open |
| Subject Keyword | Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Catalysis |
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