877378-35-3Relevant academic research and scientific papers
Chiroselective assembly of a chiral porphyrin-fullerene dyad: Photoconductive nanofiber with a top-class ambipolar charge-carrier mobility
Hizume, Yumi,Tashiro, Kentaro,Charvet, Richard,Yamamoto, Yohei,Saeki, Akinori,Seki, Shu,Aida, Takuzo
supporting information; experimental part, p. 6628 - 6629 (2010/07/04)
Upon slow admission of MeOH, the enantiomerically pure form of chiral amphiphilic porphyrin-fullerene dyad 1 in CH2Cl2 self-assembles at 25 °C into nanofibers with a built-in donor/acceptor heterojunction, while its racemic form, under identical conditions, self-assembles into submicrometer-sized spheres with a donor/acceptor arrangement essentially different from that in the nanofiber assembly. Although a cast film of the latter hardly shows a photoconducting profile on micrometer-gap electrodes, the former sample clearly displays photoconduction with an ambipolar charge-transporting character. The electron and hole mobilities under zero electric field, as estimated from time-of-flight profiles, are 0.14 and 0.10 cm2 V-1 s-1, respectively, which are comparable to or even better than those reported for top-class organic materials with a donor/acceptor heterojunction.
