Phases and morphology of CuFeTe2 films prepared by electrodeposition

Abstract

Listen

Translate article

This work reports one low-priced way for the production of CuFeTe2 films on the conductive glass surface. CuFeTe2 films were prepared by electrodeposition and treatment at 220 °C for 20 h in N2 atmosphere for the first time. The effect of different deposition potentials on the CuFeTe2 phase was studied. CuFeTe2 films were prepared by electrodeposition using copper sulfate, ammonium ferrous sulfate, tellurium dioxide, and sodium citrate as raw materials. When the deposition potential is −1.0 V and the deposition time is 20 min, CuFeTe2 thin films with good phrase formation can be obtained at 25 °C. The phase of samples was characterized using x-ray diffraction (XRD). The morphology of samples was characterized via scanning electron microscopy (SEM). The crystallinity of CuFeTe2 thin films prepared under these conditions is relatively good. The microcosmic morphology of the samples is granular crystals. The lattice constants of CuFeTe2 are also calculated.