Abstract
Fullerene C60 has poor compatibility with polymers. Therefore, it is difficult to control the aggregation state in a polymer. To improve the compatibility with polymers, a bismalonate segment in which has 2-(2-methoxyethoxy)ethyl groups was introduced to a C60 skeleton. As a result, the C60 derivative showed high compatibility with several polymers, and it was easy to obtain the polymer films that C60 skeletons were dispersed homogeneously. The polyvinylcarbazole (PVK) based film containing either C60 or the C60 derivative (C60 skeleton: 1 wt%) was prepared and the electron charges trapped by the C60 skeletons were estimated. In consequence, the collected charges of the C60 derivative were approximately twice as large as those of C60. This result was speculated that the photocarrier generation efficiency of the C60 derivative was higher than that of C60, or the hopping conduction was not occurred easily in the PVK based film containing the C60 derivative.
