Organic materials for chemical sensing

Abstract

Organic materials for chemical sensing are broadly classified into three categories: (i) macrocyclic compounds, (ii) conducting polymers, and (iii) cavitand molecules. A short review of current progress in inorganic sensing materials including graphene is given, pointing out their strengths and limitations. Principal wet techniques for depositing organic thin films are described and electrical, optical, and structural properties of all three types of organic materials are analyzed in relation to their importance in chemical sensing. Examples of recent advances in chemical sensing of different analytes and pollutants are presented.