English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

A new rare-earth borate K 3 TbB 6 O 12  has been prepared using the high temperature molten salt method and was structurally determined by single crystal X-ray diffraction analyses. The structure features a three-dimensional (3D) framework which is composed of isolated B 5 O 10 , KO 6 , KO 8  and TbO 6  groups. An atom site in the 3 2  screw axis is shared by K and Tb atoms with the molar ratio of 1:1. The self-activated photoluminescence (PL) property of K 3 TbB 6 O 12  was studied. Under the excitation of 378 nm, the emission spectrum exhibits an intense green emission centered at 543–548 nm with the chromaticity coordinates (0.342, 0.590), which can be assigned to the  5 D 4 → 7 F 5  transition of Tb 3+ . The excitation spectra cover a wide range from 330 to 385 nm, which suggests that the K 3 TbB 6 O 12  phosphors can be effectively excited by a near-UV light source. One may expect that compound K 3 TbB 6 O 12  can be used as a green phosphor pumped by near-UV LED chips.

Substitution disorder and photoluminescent property of a new rare-earth borate: K 3 TbB 6 O 12