来源：ACS PublicationsThe development of innovative luminescent materials for lighting and display applications is an important research field. In this work, we have employed an anionic condensation approach to discover a novel oxonitridosilicate synthesized via Li metal flux. LaSi2N3O crystallizes in the orthorhombic space group Pna21 (a = 7.82609(6), b = 18.24908(15), and c = 4.86567(5) Å) with a structure consisting of [Si6N12O2] ribbons cross-linked by [SiN3O] tetrahedra. This follows previously reported structural rules for a series of condensed rare-earth oxonitridosilicates, and disco...
Release time:
2026
-
05
-
26
viewed：2
来源：ACS PublicationsConventional approaches to light–matter interactions rely on engineering photonic density of states. More recently, tailoring the spatial geometry of atoms or emitters themselves has emerged as a powerful and complementary route to control collective radiative properties. Here, we experimentally realize a geometry-engineered ensemble of rare-earth ions by fabricating a periodic array of subwavelength gold nanoholes on lithium niobate implanted with thulium ions, forming a semi-two-dimensional array of quantum emitters embedded in a high-index crystalline thin film. The hybri...
Release time:
2026
-
05
-
26
viewed：3
来源：ACS PublicationsRhabdophane (REPO4·H2O; RE = La to Dy) and churchite (RE′PO4·2H2O; RE′ = Gd to Lu and Y) are secondary minerals formed via hydrothermal alteration of primary rare-earth minerals such as monazite (REPO4; RE = La to Gd) and xenotime (RE′PO4; RE′ = Tb to Lu and Y). Monazite and xenotime are promising host matrices for actinide-rich nuclear wastes. However, the aqueous alteration of these materials could result in the precipitation of rhabdophane and churchite. In this scenario, the actinides could partition into the secondary phases, and the subsequent α-decay of acti...
Release time:
2026
-
05
-
26
viewed：2
来源：ACS PublicationsRare-earth (RE) bis(trimethylsilyl)amide ({N(SiMe3)2}−, N″) chemistry is well-developed, whereas RE bis(trimethylsilyl)phosphide {P(SiMe3)2}− (P″) chemistry is immature. Here, we report a convenient protonolysis route to dimeric RE P″ complexes [RE(P″)2(μ-P″)]2 (1-RE; RE = Y, Gd, Dy, Er) from parent [RE(CH2C6H4-o-NMe2)3] and excess HP″. The reactions of 1-RE with THF gave the monomeric RE P″ complexes [RE(P″)3(THF)2] (2-RE; RE = Y, Gd, Dy, Er), and treatment of 1-RE with 2 eq. of KP″ gave the RE “ate” coordination polymers [RE(P″)2(μ-P″)2K]∞ (3-RE; Y, Gd, Dy, Er). Complexes ...
Release time:
2026
-
05
-
22
viewed：3