Interesting dimensional transition through changing cations as the trigger in multinary thioarsenates displaying variable photocurrent response and optical anisotropy

Abstract

Due to the intriguing component variability and structure–property flexibility, the lone-pair cation-based chalcogenides with striking multifunctional characteristics have garnered substantial interest in recent years. Hererin, two new members in the...

Stereochemically active lone-pair-driven giant enhancement of birefringence from three-dimensional CsZn4Ga5Se12 to two-dimensional CsZnAsSe3

“…Single crystals of CsZnAsSe 3 were prepared by the facile surfactant–thermal method 21 and yellow block-shaped crystals were chosen for characterization. The elemental distribution of Cs : Zn : As : Se was determined to be 1 : 1.0(1) : 1.2(2) : 2.9(1) by EDX mapping (Fig.…”

Heteroanion-introduction-driven birefringence enhancement in oxychalcogenide Ba3MIIGe3O2S8 (MII = Mn, Cd)

“…Hence, the search for low-dimensional structures exhibiting significant anisotropy is considered one of the most effective means to obtain materials with a large Δ n . 21…”

A unique [Sb6O2S13]12−finite chain in oxychalcogenide Ba6Sb6O2S13leading to ultra-low thermal conductivity and giant birefringence

“…It is generally believed that a large anisotropy of low dimensional structures is beneficial for obtaining a larger Δ n value. 38 Given that, also the refractive index was recorded and charge density maps were plotted to offer a more intuitive understanding of the structure–activity relationship. As displayed in Fig.…”