Structural investigations on Cu2+ ions doped ZnCdO nanopowder

Structural, morphological and optical behaviour of PVP capped binary (ZnO)0.4 (CdO)0.6 nanoparticles synthesised by a facile thermal route

“…This change in weight loss with temperature became negligible at 492°C since the transformation of the reminder of the PVP content into carbonaceous products was complete [110], after 492°C, no further weight loss was observed, since the elimination of carbonaceous matter from the sample had occurred between 434 and 492°C [30]. Following thermogravimetric analysis, a change in color from yellow to crystalline white was noted, indicating the formation of binary oxide nanoparticles of high purity [108,[111][112][113].…”

Studies of impurity occupation and local angular distortions for Cu2+in CdS films at different concentrations

“…The above ESR experimental results were assigned to impurity Cu 2+ locating at Cd 2+ site in the form of tetragonally elongated octahedral (TEO) [CuS 6 ] 10− clusters [10] according to the observed g anisotropies. However, 3d 9 (Cu 2+ ) ions in not only TEO clusters [11,12] but also tetragonally compressed tetrahedral (TCT) clusters [13][14][15][16] can exhibit similar anisotropies g // >g ⊥ >2. In order to clarify impurity occupation (i.e., TEO [CuS 6 ] 10− cluster or TCT [CuS 4 ] 6− cluster) and obtain information of local structures for Cu 2+ in CdS films, in this article, the g factors and HSCs and their concentration dependences are theoretically studied based on the perturbation calculations for both the TEO interstitial [CuS 6 ] 10− cluster and TCT substitutional [CuS 4 ] 6− cluster.…”