Molecular Crystal Engineering: Tuning Organic Semiconductor from p-type to n-type by Adjusting Their Substitutional Symmetry

Adv Mater. 2017 Mar;29(10). doi: 10.1002/adma.201605053. Epub 2017 Jan 4.

Abstract

Focusing on the bottleneck of molecularly engineered organic semiconductors, a breakthrough is made to tune the electronic properties of organic semiconductors from p-type to n-type by using fluorinated metal phthalocyanines as examples. The experimentally observed p-type to n-type transition characteristics of single-crystal field-effect devices result from a combination of extrinsic and intrinsic properties of materials with different fluoridation substitution.

Keywords: metal phthalocyanines; mobility; organic field-effect transistor; organic single crystal.