Surface-functionalized cadmium chalcogenide nanocrystals: A spectroscopic investigation of growth and photoluminescence

First principles molecular dynamics study of CdS nanostructure temperature-dependent phase stability

“…[1][2][3][4] Among these semiconductors, cadmium sulfide ͑CdS͒ is one of the most important wide-gap semiconductors with good stability and high luminescence properties. [5][6][7] CdS nanostructures such as nanowires, nanorods, and nanodots have been grown experimentally, and they have been applied in photovoltaic cells, photonic switches, and optoelectronic devices. 2,8 In recent years, CdS nanostructures have also been used in biolabeling, bioimaging, drug delivery, and other biotechnological areas.…”

“…2,8 In recent years, CdS nanostructures have also been used in biolabeling, bioimaging, drug delivery, and other biotechnological areas. 5,9,10 In many of these optoelectronic and biorelated applications, CdS nanostructures have to operate in different temperature conditions, making the analysis of their thermal stability one of the most important avenues of research in this field. Additionally, CdS nanostructures such as quantum dots represent an intermediate state of matter between molecular species and bulk materials.…”

“…Additionally, CdS nanostructures such as quantum dots represent an intermediate state of matter between molecular species and bulk materials. 5 Recently it has been shown that due to the large surface to volume ratio and reconstruction of surface crystal structure, the thermodynamic properties of the CdS nanostructure can differ significantly from bulk CdS. 11 Nevertheless, the temperature-dependent phase stability of CdS nanostructures remains poorly understood, and systematic calculations and comprehensive comparisons of their thermodynamic stability under different temperature conditions are still lacking.…”

Temperature tunability of size in CdS nanoparticles and size dependent photocatalytic degradation of nitroaromatics

“…In the latter method, increase in radiation dose resulted in gradual increase in particle size as well as concentration. However, the particle concentration was found to decrease with ensuing particle growth in the colloidal methods employing capping agents like thiols [19]. In this context, temperature also plays a dominant role as found by earlier researchers in case of TOPO capped CdSe nanoparticles [22].…”

“…for tailoring the sizes of particles [17]. An effective control over the particle size can be achieved by manipulating different parameters namely, concentration, molar ratio of the reagents, time of heating in chemical method [17][18][19] and radiation doses in radiolytic method [20,21]. In the latter method, increase in radiation dose resulted in gradual increase in particle size as well as concentration.…”