Optical and structural characteristics of yttrium doped ZnO films using sol–gel technology

Influence of yttrium doping on the structural, morphological and optical properties of nanostructured ZnO thin films grown by spray pyrolysis

“…Earlier studies have attracted great attention on the use of rare earth (RE) like Eu, Ce or Nd as dopants [26] [27], due to their proved capacity to enhance the electrical and optical properties of ZnO. In particular, Y is considered as a suitable ZnO dopant [28][29] [30]. In fact, the choice of Y as a dopant is primarily motivated by its close atomic radius to that of Zinc, which facilitates the Y ions insertion into ZnO lattice [31].…”

First-Principles Calculations of the Structural, Electronic and Optical Properties of Yttrium-Doped SnO2

“…Furthermore, the 4d transition metals (Y, Ag, Cd, Nb, Mo) doped TiO2 reduce the energy gap of rutile TiO2, leading to same redshift in the optical absorption edge [27] with photocalytic activity being evidently enhanced [28]. In the previous studies, the Y doped ZnO can enhance the UV emission and decrease the deep level emission (DLE) band in the green range of ZnO [28][29][30][31], which doping with Y ions reduces the nonradioactive recombination centers and increase the possibility of the near band edge transition of ZnO. Yttrium ion is suitable to incorporate in SnO2, giving a similar crystalline size of Y 3+ cation to Sn 4+ , and leading good dispersion and enhance separation of electron-hole pairs [24].…”

“…Yttrium (Y) doped TiO2, it's found to be successful in improving photo catalytic activity and extending the absorption edge towards visible light [24][25][26]. Furthermore, the 4d transition metals (Y, Ag, Cd, Nb, Mo) doped TiO2 reduce the energy gap of rutile TiO2, leading to same redshift in the optical absorption edge [27] with photocalytic activity being evidently enhanced [28]. In the previous studies, the Y doped ZnO can enhance the UV emission and decrease the deep level emission (DLE) band in the green range of ZnO [28][29][30][31], which doping with Y ions reduces the nonradioactive recombination centers and increase the possibility of the near band edge transition of ZnO.…”

Structural, Morphological and Optical Bandgap Analysis of Multifunction Applications of Y2O3 -ZnO Nanocomposites : Varistors and Visible Photocatalytic Degradations of Wastewater

“…[24,25]. There are several research studies considering yttrium (Y 3+ -ions) as a rare earth element to be used in enhancing the optical properties of ZnO [26]; however, to the best of the current knowledge, there aren't many studies focus on Y2O3-ZnO being utilized as a photocatalyst, and varistors ceramic devices.…”