Recent Advances in Perylene Diimide-Based Active Materials in Electrical Mode Gas Sensing

This review provides an update on advances in the area of electrical mode sensors using organic small molecule n-type semiconductors based perylene. Among molecules, perylene diimides (PDIs) are important class materials due to their outstanding thermal, chemical, electronic, and optical properties, all which make them promising candidates for a wide range electronic devices including sensors, solar cells, field-effect transistors, light-emitting diodes. is mainly electron-withdrawing nature significant charge transfer properties. Perylene-based this type show high sensing performance towards various analytes, particularly reducing gases like ammonia hydrazine, but there several issues that need be addressed selectivity specific gas, effect relative humidity, operating temperature. In review, we focus strategies design principles applied gas-sensing PDI-based devices, resistive amperometric at room The device properties mechanisms different focusing hydrazine ammonia, studied detail, some future research perspectives discussed field. We hope results examples inspire new forms molecular engineering begin open opportunities other rylene diimide classes as active materials.