Fig. 5: Overlapping degree-dependent interlayer photon transmission efficiency of OPGCs.
From: Organic parallel grouping crystals without grain boundary
a Bright-field micrograph illustrating the crystal splicing process through a probe. b Schematic representation of the hierarchical microstructure through mechanical splicing at the interface (left), and parallel grouping crystal through the co-growth process without grain boundary (right). c Spatially resolved PL spectra obtained from output channels in the spliced crystal. Inset: i FM image of the spliced crystal. ii FM image collected from the spliced crystal by excitation with a laser beam at a distance of 20 μm from OIII. d, e Spatially resolved PL spectra obtained from tips in parallel grouping crystals with different overlapping degree. Inset: i FM images of parallel grouping crystals. ii FM images collected from the parallel grouping microstructures by excitation with a laser beam at a distance of 20 μm from OIII. f Overlapping degree-dependent PL intensity at different optical output channels. g Interlayer photon transmission efficiency versus overlap degree of parallel grouping crystals.
