Band gap energies of Li2xMg(1−x)O materials synthesized by the sol–gel method

Band Gap Narrowing of MgO and Mg_0.95Zn_0.05O Nanostructures

“…The reduced band gap of the nano MgO can be explained by the nano size of the MgO sample which is between 30 nm to 85 nm. This may due to the increased surface area to volume (SAV) ratio of the nano MgO sample [10,21]. The larger surface area over volume ratio of nanoparticles enhances their surface effects.…”

“…The band gap study of doped materials reported by Kamarulzaman et al, N. Badar et. al, Joshi et al and Vasanthi et al showed that the presence of doping elements also modified the band gap energy causing whether band gap narrowing or band gap widening [8][9][10][11][12]. This modified band gap energies depend on the characteristics of the doping elements.…”

Effect of Li Substitution in MgO Nanostructured on Band Gap Energy via Combustion Synthesis Method

“…Substitutional doping can be done by a chemical reaction method that forces the dopant element to be introduced into the crystal lattice sites of the material and producing single phase material that are isostructural to the parent material. These new compound will exhibit different characteristics than their parent material that will be useful for future applications [6,7]. Previously, doped MgO nanostructures has been reported with various dopant elements such as Cu, Zn, Ca, etc and results has been proved that the band gap change when it undergo doping [8][9][10][11].…”

Effect of Cu Doped in MgO on Nanostructures and their Band Gap Energies

“…Substitutional doping is another way that can be used to improve this characteristic without changing the crystal structure. Reported research on doped materials has shown results of changing in band gap energy [14][15][16]. Doping of the materials with other metals will extend the range of band gap energies of materials which may have wider uses in applications.…”