Crystal growth and optical properties of rare earth sesquiselenides and sesquisulphides — new magneto-optic materials

High-temperature enthalpy of praseodymium selenides in the homogeneity range bounded by Pr3Se4 and Pr2Se3

“…Since Pr 3 Se 4 -Pr 2 Se 3 compounds exhibit unique physical and chemical properties (they have high melting (decomposition) temperatures, about 2000 K; Pr 3 Se 4 is a conductor with conductivity σ = 700 Ω -1 ⋅ cm -1 , Pr 2 Se 3 is an insulator with σ = 1 ⋅ 10 -6 Ω -1 ⋅ cm -1 ), they have a great potential as high-temperature thermoelectric materials, catalysts, fluorescent materials, and other functional materials for electrical engineering, nuclear energy, electronic engineering, and laser technology [1][2][3][4][5].…”

Photoelectrochemical study of lanthanide titanium oxides, Ln2Ti2O7 (Ln=La, Sm, and Gd)

“…The Ln 4f levels become lowered with an increase of 4f electrons. The systematic shift of Ln 4f energy levels was previously studied by Prokofiev and coworkers in sesquioxides[20,21]. The Ln 4f level gradually becomes lowered with an increase of their atomic number.…”

Structure and optical properties of - and -cerium sesquisulfide

“…At the same k-point is the smallest direct gap between the maximum of the LHB and the CB minimum of around 1.8 eV which is in fact in the range of measured optical gaps between 1.8 and 2.0 eV [15,22,51,52]. Thus, the present calculations on ␥-Ce 2 S 3 result in a dark red color.…”