Cu-doped ZnO nanoparticles synthesized by simple co-precipitation route

Red luminescence of Zn /ZnO core–shell nanorods in a mixture of LTZA/Zinc acetate matrix: Study of the effects of Nitrogen bubbling, Cobalt doping and thioglycolic acid

“…With the increase of x up to 0.3%, the overall emission pattern of the samples is weakened. It could be explained by considering the fact that when Co is doped into ZnO structure more than its optimum value, the excess of Co ions occupy interstitial sites which activate recombination centers [21] and quench the emission. It is followed by further increase of x up to 0.5% in which the peak intensity at 605 nm decreases significantly and blue emission quenches completely.…”

“…Especially their luminescence properties have been extensively studied due to their application for light emitting diodes (LEDs) and laser fabrication [1][2][3][4][5][6][7][8][9][10][11][12][13]. Room temperature visible emission of ZnO nanostructures from blue to red wavelengths has been reported by many groups [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27]. The green, yellow and red light emissions which are attributed to the deep level emission bands have previously been attributed to several defects in the ZnO crystal structure, e.g.…”

“…O vacancy (V O ) [13] Zn vacancy (V Zn ) [14], O interstitial (O i ) [15] and Zn interstitial (Zn i ) [16,17]. The key role in the luminescence properties of ZnO nanostructures have been realized to be defect engineering [8,[17][18][19][20][21][22][23][24][25][26][27]. The defects have been extensively manipulated by insertion of doping agents into the ZnO crystal structure.…”

“…The defects have been extensively manipulated by insertion of doping agents into the ZnO crystal structure. Different groups have reported green to red emission of ZnO by insertion of Copper (Cu), Manganese (Mn) and Europium (Eu) as doping agent in the structure of ZnO [19][20][21][22]. The luminescence modification of ZnO nanorods (NRs) doped with arsenic (As) [23], Cu [24] phosphorus (P) [25], antimony (Sb) [26] and nitrogen (N) [27] have been published and the effect of introducing these elements on the luminescent properties was investigated.…”

Drastic improvement in magnetization of CdO nanoparticles by Fe doping

“…Variety of synthesis routes for the preparation of ultrafine oxide nanoparticles including: sol-gel (Li et al 2014), hydrothermal (Moulahi and Sediri 2014), microwave irradiation (Rajesh et al 2015), conventional precipitation (Rahmati et al 2014;Esmat et al 2017), and sonochemical methods (Ranjbar and Morsali 2011) have been investigated. Among these, the hydrothermal method is considered as a one of the best methods for synthesizing high crystalline advanced materials with control in the nanostructure and surface properties.…”