Surface Functionalization: Functionalization of Amorphous SiO₂ and 6H‐SiC(0001) Surfaces with Benzo[ghi]perylene‐1,2‐dicarboxylic Anhydride via an APTES Linker (Small 4/2012)

The cover image illustrates visible light emission from a substituted perylene dye attached via an 3-aminopropyl triethoxysilane (APTES) linker to a single-crystal silicon carbide surface. Using wet chemical processes, the APTES linker is first covalently attached to the hydroxylated silicon carbide in a siloxation reaction. In a second step, the linker is functionalized with the perylene dye at its amine group. Confocal microscopy shows that the single-crystal SiC surface provides a more homogeneous environment than the usually used amorphous quartz surface. The spatially resolved fluorescence lifetime measurements indicate that the dye is electronically isolated from the substrate and, at high packing density, forms H-H complexes. For more information, please read the Full Paper “Functionalization of Amorphous SiO2 and 6H-SiC(0001) Surfaces with Benzo[ghi]-perylene-1,2-dicarboxylic Anhydride via an APTES Linker” by D. K. Bhowmick, H. Zacharias, and co-workers beginning on page 592.