▎ 摘　　要

Diluted magnetic semiconductor ZnMnSe2 has been synthesized on reduced graphene oxide/polyimide (rGO/PI) substrate by a simple electrochemical method. The structure, surface morphology, magnetism and photoelectric property of ZnMnSe2 were examined. For comparison, ZnSe and MnSe were also prepared by electrochemical deposition. Porous structure of ZnMnSe2 was obtained, and the porous structure was consisted of nanosheets. The atomic ratio of Zn, Mn and Se was measured to be 1:1:2 by X-ray photoelectron spectra and energy-dispersive X-ray spectroscopy. The high resolution transmission electron microscopy and X-ray Powder Diffraction pattern confirmed the preferred crystal growth orientation was the (111) direction. The absorption spectrum provided a band gap of 2.4 eV. Open-circuit potential measurement indicated that ZnMnSe2 composite film was a good p-type semiconductor material. The photoelectrical phenomena of ZnSe, MnSe and ZnMnSe2 were observed, and the optoelectronic property of ZnMnSe2 was the best, the potential difference was 0.27 V. Besides, the ZnMnSe2 composite film had prominent magnetism, and it was ferromagnetism material. These results indicated that rGO/PI-ZnMnSe2 composite film by electrochemical deposition was a promising ferromagnetism semiconductor. (C) 2014 Elsevier B.V. All rights reserved.