A new 1D inorganic–organic hybrid perovskite-like semiconductor with high stability and humidity response

Inorganic-Organic hybrid perovskite-like materials have potential application in photodetection, sensor and solar cells etc. However, these materials still face the challenge of poor stability. A new inorganic–organic hybrid material was synthesized by solvothermal method using H2DAB as the template and counter cation. The structure is composed of one-dimensional (1D) inorganic perovskite-like chain, [(Me3)DAB(Me3)]2+ (DAB = benzidine) dications and water molecules. This compound exhibits good stability to water and organic solvents, and shows typical semiconductor behavior. Interestingly, the compound also shows great potential for humidity sensing, including linear sensitivity (10–100%), high response (5 orders of magnitude of current change), and fast recovery time.