Functionalization of 1, 8-Naphthalimides- An approach towards air-stable n- type organic semiconductors

Abstract

Structurally assembled small organic molecules form the basic components required for the design of smart molecules in devices. Among all the acceptors reviewed, Naphthalimides (NI) are found to be promising motifs in the electronic applications as they are versatile enough to tune them to achieve efficient device performances. Naphthalimides have been extensively used in organic electronics such as organic light emitting diodes, organic thin film transistors, liquid crystal display and organic solar cells. In this work, new and stable 1, 8-naphthalimides with long conjugated groups and heterocyclic systems were synthesised. All the compounds were thoroughly characterized and studied for the structure property relationship. The synthesized naphthalimides were highly fluorescent and their estimated energy levels concluded as n-type organic semiconductors.