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      https://www.ias.ac.in/article/fulltext/boms/034/05/1083-1087

    • Keywords

       

      Cu-doped ZnO; hydrothermal method; optical property; magnetic property.

    • Abstract

       

      We have investigated properties of the Cu-doped ZnO crystalline film synthesized by the hydrothermal method. X-ray diffraction and X-ray photoelectron spectroscopy results provide the evidence that Cu2+ is incorporated into the ZnO lattices. Photoluminescence spectrum of the rod arrays shows that the UV emission peak shifts a little to lower energy and its intensity decreased. There are another two emission peaks centred in blue and green regions because of the incorporation of Cu2+ ions. The rod arrays have exhibited room-temperature ferromagnetic behaviour with the remanence of 0.926 × 10-3 emu/cm3. We suggest that the exchange interaction between local spin-polarized electrons (such as the electrons of Cu2+ ions) and conductive electrons is the cause of room-temperature ferromagnetism.

    • Author Affiliations

       

      C H Xia1 C G Hu2 C H Hu1 Z Ping1 F Wang1

      1. Science College of Chongqing Jiaotong University, Chongqing 400074, People’s Republic of China
      2. Department of Applied Physics, Chongqing University, Chongqing 400044, People’s Republic of China
    • Dates

       
  • Bulletin of Materials Science | News

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