Oligothiophene Cruciform with a Germanium Spiro Center: A Promising Material for Organic Photovoltaics
作者:Iain A. Wright、Alexander L. Kanibolotsky、Joseph Cameron、Tell Tuttle、Peter J. Skabara、Simon J. Coles、Calvyn T. Howells、Stuart A. J. Thomson、Salvatore Gambino、Ifor D. W. Samuel
DOI:10.1002/anie.201109074
日期:2012.5.7
is observed in a novel cruciformoligothiophene containing a Ge (violet; see picture) spirocenter. Long‐range interchain interactions between molecules and strong electronic coherence between orthogonal chains within the molecules are present. Such ordering is advantageous for bulk charge transport, as demonstrated by high short‐circuit currents in bulk heterojunction organic solar cells.