A new low temperature one-step route to metal chalcogenide semiconductors: PbE, Bi2E3 (E=S, Se, Te)

Abstract

A solvothermal reaction of metal oxalates such as PbC₂O₄ , Bi₂(C₂O₄)₃ with E (E=S, Se, Te) in organic solvents at relatively low temperature (120–160 °C) produces crystalline PbS, PbSe, PbTe, Bi₂S₃ , Bi₂Se₃ , and Bi₂Te₃ :PbC₂O₄+Esolvent