초록 |
To improve the performance of solar power conversion, it is reasonable that chromophore materials should be required to absorb a whole spectrum of a solar light and exert long run stability as well as photochemical air stability. In this study, we synthesized oligothiophenes containing methoxy, nitro and amine groups to control their light absorption feature and favorable charge transfer. Dipolar piconjugated chromophore and planar oligothiophenes were considered for the longer wavelength absorption. Star-shaped oligothiophenes and their derivatives were synthesized and compared for the efficient charge transfer. |