The bulk photovoltaic effect of fluorophenylterthiophene derivative 1 bearing a chiral alkyl chain doped with fullerene derivatives 2 and 3 was studied for the construction of organic bulk photovoltaic systems with bulk heterojunction structures. Electrical polarization could be immobilized in the chiral ordered smectic phase of the mixtures of compound 1 with compound 2 or compound 3 by a DC bias application during the phase transition from the chiral smectic C (SmC*) phase to the chiral ordered smectic phases. The spectral sensitivity is expanded to the illumination of visible light in the smectic phases of the FLC 1 doped with the fullerene derivatives while FLC 1 had a spectral sensitivity below 480 nm. Because of segregation of fullerene derivatives in the smectic phases of FLC 1 doped with fullerene derivatives 2 and 3, electron transport characteristics were enhanced in the smectic phases and the electron mobilities reached 1 × 10⁻² cm²V⁻¹s⁻¹. As a result, polarity inversion of this bulk photovoltaic effect was observed in FLC 1 doped with the fullerene derivatives. The open circuit voltage was also increased to 0.5 V in the ordered smectic phase of fullerene-doped FLC 1 in spite of the symmetrical structure of the cells.

研究了带有富勒烯衍生物2和3掺杂的手性烷基链的氟苯基对噻吩衍生物1的整体光伏效应，用于构建具有整体异质结结构的有机整体光伏系统。在从手性近晶C（SmC *）相到手性有序近晶相的相变过程中，可以通过施加直流偏压将电极化固定在化合物1与化合物2或化合物3的混合物的手性有序近晶相中。光谱灵敏度扩展到FLC 1近晶相中可见光的照明掺有富勒烯衍生物，而FLC 1的光谱灵敏度低于480 nm。由于在富勒烯衍生物2和3掺杂的FLC 1的近晶相中富勒烯衍生物的偏析，在近晶相中电子传输特性增强，并且电子迁移率达到1×10 ^-2 cm ² V ^-1 s ^-1。结果，在掺杂有富勒烯衍生物的FLC 1中观察到了这种整体光伏效应的极性反转。在富勒烯掺杂的FLC 1有序近晶相中，开路电压也增加到0.5 V 尽管细胞具有对称结构。