(H_2NC_4H_8NCH_2CH_2NH_2)_2Zn_2Sn_2Se_7: a hybrid ternary semiconductor stabilized by amine molecules acting simultaneously as ligands and counterions

摘要

A hybrid, organic-inorganic ternary semiconductor with chemical formula (H_2NC_4H_8NCH_2CH_2NH_2)_2Zn_2Sn_2Se_7 is reported in which the organic molecules have a dual role, acting simultaneously as ligands and charge balancing cations.rnThe current intense exploratory work in templated solvothermal syntheses of crystalline metal chalcogenides is primarily driven by the prospect of constructing novel open-framework solids that combine accessible pore space and optoelectronic properties. In a significant part of this research amine molecules have been used as structure directing agents with a combination of metals from groups 13 (In, Ga), 14 (Ge, Sn), 15 (As, Sb) and the chalcogen elements (mainly sulfur and selenium), for the development of structurally and chemically diverse metal chalcogenides. In the vast majority of such complexes, the amine molecules enter the host inorganic lattice either as neutral space filling molecules or as extra-framework cations.