Triangular CdS nanostructure: effect of Mn doping on photoluminescence, electron spin resonance, and magneto-optical properties

Effects of natural organic matter (NOM), metal-to-sulfide ratio and Mn2+on cadmium sulfide nanoparticle growth and colloidal stability

“…XRD cell dimension change. In the production of semiconductors (usually non-aqueous syntheses in highly engineered systems), Mn 2+ is often used as a dopant, especially to modify and improve optical properties of selenide and sulfide quantum dots (e.g., Zn 1−x Mn x Se, [117][118][119] Zn 1−x Mn x S, [120][121][122][123] and Cd 1−x Mn x S. 50,81,114,121,[124][125][126][127][128][129][130][131] Accordingly, these studies show that Mn 2+ can be incorporated into the structure of metal sulfides. In some of these studies, the shrinkage in lattice cell dimensions has been identified as an indicator for the incorporation of a guest ion into a host crystal.…”

“…In some of these studies, the shrinkage in lattice cell dimensions has been identified as an indicator for the incorporation of a guest ion into a host crystal. 121,130,131 For this reason, we followed the change in lattice cell dimensions of hawleyite (a dimension) and greenockite (a and c dimension) with the addition of Mn 2+ in our CdS suspensions (Table S4, † Fig. 4b).…”

Temperature Dependence of Faraday Rotation of Glass Optical Fibers Doped with Quantum Dots of CdSe and CdMnTe

“…Compound semiconductor nanoparticles of binary (e.g., CdS, CdSe, CdTe, ZnSe, ZnS, ZnTe) and ternary (e.g., CdMnTe, CdMnSe, CdZnTe) compositions have attracted attention for magneto‐optic device applications such as Faraday rotators, optical isolators, optical current sensors, and microwave filters . A giant paramagnetism of these semiconductor nanoparticles is caused by a large exciton Zeeman splitting due to the extremely large g factor observed in a magnetic field .…”

“…Earlier, in this regard, our group has investigated optical fibers incorporated with CdSe (QDs and CdMnTe QDs having large Verdet constant for fiber optic isolators and current sensors applications . The large Faraday rotation under magnetic field of the optical fiber doped with CdSe QDs is understood from the information on the nature of electronic transitions at the band edge, and on effective masses and g‐factors . In the case of the optical fiber doped with CdMnTe QDs, on the other hand, the observed giant Faraday rotation comes from the Mn 2+ ion magnetization, originated from the strong sp‐d exchange interactions that exist between carrier spins and the local 3d spins of embedded paramagnetic Mn dopant atoms .…”

Analysis of the Influence of Mn2+ Incorporation on Structural and Spectroscopic Features of CdS Nanoparticles

“…The several synthesis approaches have been employed by numerous researchers and scientific groups for growing and also controlling the size and shape of CdS and CdS:Mn nanoparticles. These techniques include hot injection method, sol-gel technique, reverse micelles techniques, photochemical growth, chemical colloidal techniques, hydrothermal synthesis, and chemical precipitation route and so on [10][11][12][13][14]. Among these synthesis techniques, chemical precipitation route is simple, cheapest, high yield producing and low-priced equipments are needed, and therefore, an attempt would have been made to employ this simple synthesis technique for the preparation of CdS and CdS:Mn nanoparticles in this work.…”