Crystal structure and two types of Eu3+-centered emission in Eu3+ doped Ca2V2O7

A novel bismuth-activated Sr3NaSbO6 phosphor with multi-band switchable emission for NUV-pumped LEDs

“…Bond energy usually reflects the bonding strength of chemical bonds, which can be understood as the energy absorbed (or generated) by breaking (or connecting) 1 mole of chemical bonds. In this system, the occupancy of doped Bi 3+ can be determined by comparing the difference in bond energy between M–O (M = Sr, Na) and Bi–O bonds using the following formulas: 17–19 Δ E Bi = | E M–O − E Bi–O |where E M–O is the bond energy of the M–O bond, E Bi–O is the bond energy of the Bi–O bond, J and d 0 are constants for specific bonds, 20 d M–O is the bond length of the M–O bond, d Bi–O is the bond length of the Bi–O bond, V is the ion valence, and Δ E Bi is the absolute value of the difference between E M–O and E Bi–O . A smaller Δ E Bi indicates that the doped ions are more likely to occupy the corresponding cation lattice.…”

“…Bond energy usually reflects the bonding strength of chemical bonds, which can be understood as the energy absorbed (or generated) by breaking (or connecting) 1 mole of chemical bonds. In this system, the occupancy of doped Bi 3+ can be determined by comparing the difference in bond energy between M-O (M = Sr, Na) and Bi-O bonds using the following formulas: [17][18][19]…”

Ca2V2O7 as an Anode‐Active Material for Lithium‐Ion Batteries: Effect of Conductive Additive and Mass Loading on Electrochemical Performance

“…[37][38][39][40][41] For the reasons mentioned above, calcium pyrovanadate (CVO) could be an alternative since calcium and vanadium are nontoxic in standard concentrations and abundant on Earth [42] and possess a layered framework with a triclinic structure. Even after studying for years since 1981, [20,[43][44][45][46][47][48][49] the application of CVO as a component in LIBs is still not widely exploited.…”

Bonding Inhomogeneity and Strong Anharmonicity Induce Ultralow Lattice Thermal Conductivity in Calcium Pyrovanadate

“…This results in versatile properties of vanadium-based materials, such as superconductors (MV 3 Sb 5 (M = Cs, K)) , and metal-ion batteries (Li/Na/Mg/Al/K/Ca/Zn ions) − and catalytic , and optoelectronic devices (VO 2 , V 2 O 5 ), , etc. In particular, due to the unique structural properties of a layered crystal structure, broad and intense O 2– V 5+ charge transfer bands, eco-friendliness, and low cost, the calcium pyrovanadate (Ca 2 V 2 O 7 ) has been widely used in microwave dielectrics, supercapacitors, lithium-ion batteries (LIBs), vanadium extraction, , and phosphors − to name a few. These applications focus primarily on the unique structural properties of Ca 2 V 2 O 7 .…”