Optoelectronic, luminescence, and nonlinear properties of a non-centrosymmetric Cd(II)-based complex

Structural and Optical Characterization of a New Tetra- and Hexa-Coordinated Cd-Based Hybrid Compound with White Light Emission

“…Similarly to the known Cd-based organic inorganic hybrid materials [18,28,29,34,41], the absorption spectrum presented in Figure 4 shows an intense band in the UV region…”

“…Similarly to the known Cd-based organic inorganic hybrid materials [18,28,29,34,41], the absorption spectrum presented in Figure 4 shows an intense band in the UV region (at around 225 nm) with three weak bands in the range of 280-550 nm. The band observed at 225 nm is assigned to the intramolecular electronic transfer within the organic cation (π-π*), while the weak bands result from excitonic transitions within the [CdBr 4 ] 2− and [CdBr 6 ] 4− inorganic polyhedra and/or ligand to metal charge transfer from the bromide ions to the Cd cations [33,41].…”

“…(at around 225 nm) with three weak bands in the range of 280-550 nm. The band observed at 225 nm is assigned to the intramolecular electronic transfer within the organic cation (π-π*), while the weak bands result from excitonic transitions within the [CdBr4] 2and [CdBr6] 4-inorganic polyhedra and/or ligand to metal charge transfer from the bromide ions to the Cd cations [33,41]. It can be clearly observed that there is no characteristic absorption band in the region between 400 and 800 nm, which reveals that our synthesized crystal could be exploited for different optical applications such as luminescent devices and lasers.…”