| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9776418 | Synthetic Metals | 2005 | 4 Pages |
Abstract
Novel long oligothiophenes incorporated with four fullerenes (2C60-16T-2C60 and 2C60-24T-2C60) have been synthesized with the aim of developing good single-component photovoltaic materials. The tetracosithiophene derivative 2C60-24T-2C60, despite its giant structure, is rather more tractable regarding solubility than the hexadecithiophene derivative 2C60-16T-2C60. The electronic absorption and emission spectra of 2C60-24T-2C60 indicated no electronic interaction in the ground state but efficient intramolecular electron transfer in the excited state. The sandwich device of the Al/2C60-24T-2C60/Au structure showed a marked photocurrent upon illumination with monochromatic light from the Al side. The incident-photon to converted-electron ratio (IPCE) is 14%.
Related Topics
Physical Sciences and Engineering
Materials Science
Biomaterials
Authors
N. Negishi, K. Takimiya, T. Otsubo, Y. Harima, Y. Aso,