Fig. 1: Conjugated phenyl pairs in Ph-BTBT-C10 bilayers.
From: Metallic charge transport in conjugated molecular bilayers
a, Schematic of HTH Ph-BTBT-C10 with a zoomed-in view of phenyl pairs and the visualized in-plane orbital overlap in the BTBT layers in a three-dimensional view. Right: interlayer DCD at the phenyl pairs. Pink, green and blue colours represent the total charge density, charge accumulation and reduction in DCD, respectively. b, Interlayer and intralayer binding energies and vdW gap in Ph-BTBT-C10, Th-BTBT-C10 and BTBT-C10. c, Illustration of the supersaturated crystallization process: Marangoni-flow-assisted crystal growth, long-term crystal relaxation and obtained cross-polarized optical microscopy image of a Ph-BTBT-C10 crystal. d, GIWAXS patterns of the HTH Ph-BTBT-C10 crystals with distinct diffraction spots. qxy and qz represent the in-plane and out-of-plane scattering vectors. e, AFM and high-resolution AFM images of the HTH Ph-BTBT-C10 films, displaying a bilayered step and highly ordered molecular packing. a, b and β are the in-plane lattice parameters. f, Illustration of Ph-BTBT-C10 molecular packing and calculated transfer integrals J of Ph-BTBT-C10, Th-BTBT-C10 and BTBT-C10.
