Fig. 2

The morphological and crystallographic characterization of 1D organic arrays. a SEM image of 1D organic single-crystal arrays with precise alignment and regular morphology. b TEM image of an individual organic microbelt with straight boundary and high-quality crystallinity shown in SAED pattern of the inset. c Powder XRD pattern of 1D arrays, conforming to the oriented triclinic TIPS-pentacene with the space group of P1 and lattice constant of a = 7.6 Å, b = 7.8 Å, c = 16.8 Å, α = 89.2°, β = 78.4°, and γ = 83.6°. d–e Parallel-polarized and cross-polarized reflection images of 1D arrays. f Polarizing angle dependent reflection intensity of 1D arrays, demonstrating their high-quality crystallinity and uniform crystal orientation. g GIWAXS pattern of 1D arrays, indicating the crystal orientation of 1D arrays along with [010]. Scale bars: a 10 μm, b 1 μm, e 20 μm