Double-jet precipitation synthesis of CaF2 nanoparticles: The effect of temperature, solvent, and stabilizer on size and morphology

High-Gravity-Assisted Intensified Preparation of Er-Doped and Yb/Er-Codoped CaF2 Upconversion Nanophosphors for Noncontact Temperature Measurement

“…The characteristic of this structure is that the body-centered position of the cubic sublattice constructed of F – is occupied by every other Ca 2+ , resulting in more gap positions in the lattice and lower activation energy to the formation of gap anions. Therefore, trivalent rare earth cations with ionic radii similar to that of Ca 2+ can be successfully incorporated into the crystal lattice . It is desired for the high-performance rare earth doped phosphors to achieve homogeneous doping of ions in the host matrixes and a uniform particle size distribution (PSD) …”

“…Therefore, trivalent rare earth cations with ionic radii similar to that of Ca 2+ can be successfully incorporated into the crystal lattice. 23 It is desired for the high-performance rare earth doped phosphors to achieve homogeneous doping of ions in the host matrixes and a uniform particle size distribution (PSD). 24 As is known, the uniform spatial concentration distribution and higher supersaturation degree in the reactive precipitation process are beneficial to homogeneous nucleation and smaller particle size.…”

Fluorescent Enhancement of CaF2: Nd3+ Nanoparticles through a Concentration‐Gradient Core/Shell Hybrid Structure

“…Meanwhile, CaF 2 host materials have an important application in dental medicine, [4] multifunctional nanoprobes in vitro and in vivo, [5] transparent laser ceramics, [6] enhance thermal conductivity of a composite, [7] et al What's more, like other lanthanide-based host materials such as LnF 3 or ALnF 4 (where A = Li, Na, K), CaF 2 is a potential host for phosphors with excellent up/down-conversion luminescent properties. [8] Firstly, the edge of the fundamental absorption band in CaF 2 lies in the vacuum UV at ∼ 12 eV. [9] Secondly, the low phonon energy of CaF 2 could minimize multi-phonon de-excitation probabilities.…”

Влияние Отжига На Структурные, Текстурные, Термические, Магнитные И Люминесцентные Свойства Наночастиц Фторида Кальция

“…Различные методы применяются для синтеза наночастиц (НЧ) CaF 2 , например, сольво-термический [9], гидротермальный [10], золь-гель [11], реверсирования мицеллы [12], осаждения [13], распылительной сушки [14], микроволновой [15], полиольный [16], механохимический [17], пламенный синтез [18], термического разложения [19], лазерная абляция [20], cинтез в нанореакторах, мицеллах и эмульсиях [21]. Тонкие и эпитаксиальные пленки CaF 2 выращивали c помощью термического испарения [22], молекулярно-лучевой эпитаксии [23], импульсного лазерного испарения [24], электронно-лучевого испарения [25], атомно слоевого осаждения [26], металл-органического химического парового осаждения [27] и электроосаждения [28].…”