Browsing CHEM Faculty Scholarship by Author "Sarkar, Arka"
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A$_2$P$_2$S$_6$ (A = Ba and Pb): a good platform to study the polymorph effect and lone pair effect to form an acentric structure
Ji, Bingheng; Sarkar, Arka; Wu, Kui; Swindle, Andrew; Wang, Jian (The Royal Society of Chemistry, 2022-05-14)Three ternary thiophosphates α-Ba$_2$P$_2$S$_6$, β-Ba$_2$P$_2$S$_6$, and Pb$_2$P$_2$S$_6$ were synthesized via a high temperature salt flux method or an I2 transport reaction. β-Ba$_2$P$_2$S$_6$ and Pb$_2$P$_2$S$_6$ were ... -
Evolution of structure and transport properties of the Ba$_8$Cu$_{16}$P$_{30}$ clathrate-I framework with the introduction of Ga
Sarkar, Arka; Viswanathan, Gayatri; Yox, Philip; Harycki, Stasia; Cerasoli, Frank T.; Wang, Jian; Perras, Frédéric A.; Gundlach-Graham, Alexander; Donadio, Davide; Kovnir, Kirill (American Institute of Physics Inc., 2022-05-09)Two type-I clathrates were synthesized by introducing Ga into the framework of the Ba$_8$Cu$_{16}$P$_{30}$ type-I clathrate. The introduction of minute amounts of Ga, 1.9% Ga/Mtotal (where $M_{total}$ = Cu + Ga), resulted ... -
Synthesis, crystal growth, electronic properties and optical properties of $Y_6IV_{2.5}S_{14}$ (IV=Si, Ge)
Ye, Zhengyang; Bardelli, Stefano; Wu, Kui; Sarkar, Arka; Swindle, Andrew L.; Wang, Jian (Wiley, 2021-12-06)Two isostructural ternary acentric sulfides, $Y_6Si_{2.5}S_{14}$ (1) and $Y_6Ge_{2.5}S_{14}$ (2) were re-investigated to understand the origin of the chemical flexibility of $RE_6B_xC_yCh_{14}$(RE=Y, La−Lu; B=Si, Ge, Sn, ...