Nanostructured organic materials and a process for the preparation thereof

摘要

The invention disclosed nanostructured organic materials and a process for the preparation thereof. Further the present invention herein provides nanostructured organic material comprising divalent zinc metal complex of N,N′-Di-(phenyl-3,5 dicarboxylic acid)-perylene-3,4,9,10-tetracarboxylic acid diimide doped with hydrazine hydrate, which exhibits increased charge carrier mobility at low operating voltage at atmospheric condition useful in organic field effect transistors (OFETs).

主权项

1. A composition for improving the device efficiency at atmospheric condition, comprising a nano structured organic material, said nano structured organic material comprising hydrazine doped zinc (II) complex of N,N′-Di-(phenyl-3,5 dicarboxylic acid)-perylene-3,4,9,10-tetracarboxylic acid diimide, said nanostructured organic material prepared by a process comprising the steps of:
a) reacting 3,4,9,10 perylene tetracarboxylic dianhydride with 5-amino isophthalic acid in presence of imidazole and zinc acetate at temperature range 130° C. to 160° C. for a period in the range of 15-50 hrs under argon atmosphere; b) precipitating the mixture of step a) in presence of 2N HCl, followed by washing with solvent selected from the group consisting of water, methanol, ethanol, propanol, isopropanol, butanol, DMF, anhydrous chloroform either alone or combination thereof and drying to obtain N,N′-Di-(phenyl-3,5 dicarboxylic acid)-perylene-3,4,9,10-tetracarboxylic acid diimide (PTCDI-TC); c) dissolving zinc nitrate hexahydrate and (PTCDI-TC) as obtained in step (b) in a mixture of DMF/1,4-dioxane/H2O in the ratio ranging between 1:1:1 to 3:1:1 followed by heating at temperature in the range of 100-150° C. for a period in the range of 2-6 days and subsequently cooling and washing with solvent selected from the group consisting of water, methanol, ethanol, propanol, isopropanol, butanol, DMF, anhydrous chloroform either alone or combination thereof to obtain Zn complex of PTCDI-TC; and d) doping the Zn complex of PTCDI-TC as obtained in step (c) with hydrazine hydrate at a temperature in the range of 100°-180° C. for a period in the range of 30-250 min.