Preparation and properties of Ni-doped ZnO rod arrays from aqueous solution

Structural and Optical Characterization of Ni and Al Co-Doped ZnO Nanopowders Synthesized via the Sol-Gel Process

“…Doping of ZnO with magnetic ions such as Ni introduces magnetic properties ultimately forming dilute magnetic semiconductors, which are interesting materials for application in the spintronic domain. In addition, nanosized nickel oxide has demonstrated other excellent properties such as catalytic 19) , electrochromic 20) , optical 16,21) and electrochemical properties 22) . There is considerable interest in the development of zinc-oxide-based (ZnO: transition metal) diluted magnetic semiconductors because of their high Curie temperature which is essential for spintronic devices 3) .…”

“…To synthesize uniform nanosized ZnO particles and control their sizes and morphology, a variety of techniques has been used such as thermal decomposition 8) , chemical vapor deposition 9) , sol-gel [10][11][12][13] , spray pyrolysis 14) , and precipitation 15) . It is well known that adding impurities into a wide gap semiconductor such as ZnO induces great changes in the optical, electrical and magnetic properties 16) . Thus doping certain elements into ZnO has become an important route to control and optimize its optical, electrical and magnetic performance.…”

Photoluminescence and optical properties of nanostructure Ni doped ZnO thin films prepared by sol–gel spin coating technique

“…It is well known that the addition of impurities into a wide gap semiconductor, such as ZnO can often induce dramatic changes in the optical, electrical, and magnetic properties [21][22][23]. Therefore, a selective doping element into ZnO has become an important route for enhancing and controlling its optical, electrical, and magnetic performance, which are crucial for their practical applications [23].…”

“…Therefore, a selective doping element into ZnO has become an important route for enhancing and controlling its optical, electrical, and magnetic performance, which are crucial for their practical applications [23].…”

“…Furthermore Ni 2+ (0.69Å) has the same valence compared to Zn 2+ and its radius is close to Zn 2+ (0.74Å), so it is possible for Ni 2+ to replace Zn 2+ in ZnO lattice. Some researches on Ni doped ZnO have been reported and several results showed that the luminescence properties of ZnO were changed after doping of Ni [30][31][32][33]. By doping Ni into ZnO, a composite material with magnetic and optical properties could be obtained.…”