Effects of Cd concentration on structure and optical properties of the ternary Zn1−xCdxO nanopowder prepared by sol–gel method

Structural and optical characteristics of nanoparticles of zinc oxide based ternary compounds generated by simple sol-gel technique.

“…Similar bandgap contraction of ZnCdO compounds was discovered in the findings of Y.R. Sui et al [52]. However, they have only researched UV emission (350 to 500 nm) and have not studied about green emission (350 to 650 nm) in their work.…”

Wide visible emission and narrowing band gap in Cd-doped ZnO nanopowders synthesized via sol-gel route

“…In addition, recent studies by Sui et. al [16] shows single phase of ZnO for incorporation of Cd up to 50% and shown the coexistence of the hexagonal ZnO and cubic phase of CdO for 0.5 < X < 0.85. Also, Ghosh and co-workers [22] reported incorporation of Cd in ZnO tend to get phase separated easily if the growth necessitates a high temperature solution route.…”

“…Although Al-doped ZnO have shown some intriguing features, there remains an unresolved M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPT problem concerning the environmental stability. ZnO has been doped with Mg to enlarge the band gap and with Cd to narrow the band gap [12,13,14,15,16,17]. In either case, alloys of the form M g x Zn 1−x O or Cd y Zn 1−y O with hexagonal zincite structure have been formed.…”

“…Different synthesis methods have been developed, including sol-gel, mechanochemical, spray pyrolysis and drying, thermal decomposition of organic precursor [9,26,27], self assembling, hydrothermal processing, vapor transport, sonochemical or microwave-assisted synthesis, direct precipitation and homogeneous precipitation are mentioned. Among these techniques, sol-gel is appealing because of many advantages like easy for compositional modification, simple and inexpensive equipment, and minimum variables to control the growth of sample with excellent control on stoichiometry [25,10,16,13,15].…”