z-logo
Premium
Structure and Photoluminescence Properties of EuSiN 2
Author(s) -
Braun Cordula,
Kuppusamy Senthil Kumar,
Uhlemann Pascal,
Höhn Peter
Publication year - 2025
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.202404395
Abstract With the europium nitridosilicate, EuSiN 2 a novel member of the multifaceted M SiN 2 family is presented and compared with the structural similar compounds M SiN 2 ( M = Ca, Sr, Ba). A different way of presenting the structure as M ‐N polyhedra layers is introduced. The crystal structure of EuSiN 2 , being isotypical to SrSiN 2 , was determined and refined based on powder X‐ray diffraction data in space group P 2 1 /c (no. 14) with a = 5.96381(2) Å, b   = 7.25982(3) Å, c   = 5.488338(19) Å, β = 113.33°, V   = 218.18(5) Å 3 , and Z   = 4. As the Eu 2+ ‐doped M SiN 2 compounds show excellent luminescence properties as LED phosphors, the luminescence behaviour of dark red emitting EuSiN 2 has been investigated as well. Two emission peaks are visible at 708 nm and 764 nm. Many europium‐doped nitridosilicates show more or less developed shoulders for their luminescence peaks, but two clearly shaped emission peaks are a novel feature for nitridosilicates. Comprehensive and detailed comparisons are given and discussed based on works in literature. The chromaticity coordinate positions of EuSiN 2 in the CIE 1931 diagram are x = 0.678 and y = 0.284.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here