P1.1.4 Phthalocyanine Organic ThinFilm Transistors for the Detection of dimethyl methyl phosphonate (DMMP)

Huiling Tai, Guangzhone Xie, Xian Li, Bo Zhang & Wechao Dan
The electrical properties of Metal-Phthalocyanines (M-Pc) are affected upon exposure to gases containing not only some oxidizing/deoxidizing molecules but also nerve agent simulants. This phenomenon finds application in the use of Organic Thin-Film Transistors (OTFTs) based on copper phthalocyanine (CuPc) and cobalt phthalocyanine (CoPc) as gas sensors. In this work, tests of dimethyl methyl phosphonate (DMMP) detecting were carried out, and the sensing mechanism of OTFT DMMP sensors was further investigated by the transfer curve...