Composition-controllable synthesis and optical properties of non-integral stoichiometry compound ZnxCd1−xS nanorods

Defect-related blue emission from ultra-fine Zn1−xCd x S quantum dots synthesized by simple beaker chemistry

“…In the case of ZnS, the bandgap varies in the range of 3.7 to 5.5 eV depending upon the particle size in the nanoregime [1,2]. However, by incorporating Cd 2+ ions into ZnS nanocrystals, Zn 1−x Cd x S solidsolution semiconductors have been made and their energy bandgap was found to vary from 5.5 to 2.5 eV at room temperature [2][3][4]. As a consequence, the absorption edge shifts towards lower energy with the increase of Cd content.…”

New strategy for the synthesis and characterization of monodisperse Zn7.23Cd2.77S10 nanoparticles

“…5a, the PL spectrum is measured at room temperature using a 338 nm excitation wavelength. The emission peak is centered at 485 nm and blue-shifted by 55 nm compared with the previous Zn x Cd 1−x S nanoparticles synthesized by El-Shall and co-workers [20] and Wang et al [27]. The broad PL signal is probably related to the defect-related emissions.…”

High-Quality ZnCdS Nanosheets Prepared Using Solvothermal Synthesis

“…∘ C for about 17 h, stirring the solution continuously the whole time [4]. The EDS results suggest that the Zn ratio in the Zn Cd 1− S nanosheets increased with increasing ZnCl 2 concentration as shown in the EDS spectra in Figure 2 and listed in Table 1.…”

“…Ternary II-VI semiconductor materials have attracted more interest than binary compounds because some of their properties, such as their tunable optical properties, are better than those of binary compounds. The tunable optical properties of ternary II-VI semiconductor materials can be controlled by appropriately adjusting the constituent mole fractions, particle sizes, and morphologies of the materials [4]. Thus, the formation of Zn Cd 1− S led to the control of the optical band gap in a range of ternary phases for CdS (2.42 eV) and ZnS (3.77 eV) [5,6].…”