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Title: Structure Transformation and Cerium-Substituted Optical Response across the Carbonitridosilicate Solid Solution (LaδY1–δ)2Si4N6C(δ = 0–0.5)

Journal Article · · Inorganic Chemistry

Following an investigation proving La2Si4N6C crystallizes in a monoclinic space group, isostructural to Y2Si4N6C, the reportedly hexagonal (La0.5Y0.5)2Si4N6C was reinvestigated to examine the apparent crystal structure change across the solid solution. Initially, calculating the electronic structure and phonon density of states of (La0.5Y0.5)2Si4N6C in the P63mc space group revealed an imaginary phonon mode, which is indicative of a structural instability. Displacing the atoms along the pathway of the imaginary vibration led to a previously unreported space group for carbonitridosilicates, trigonal P31c. The assignment of the trigonal space group was subsequently confirmed by synthesizing (La0.5Y0.5)2Si4N6C using high-temperature, solid state synthesis and analyzing the crystal structure with high-resolution synchrotron X-ray powder diffraction. Preparing the solid solution, (LaδY1–δ)1.98Ce0.02Si4N6C (δ = 0–0.5), showed that the crystal structure changes from the monoclinic to the trigonal space group at δ ≈ 0.25. Finally, substituting Ce3+ in the crystal structure to investigate the optical response via steady-state luminescent and photoluminescent quantum yield measurements reveals severe luminescent quenching with increasing La3+ content, due to a combination of absorption of luminescence by the host structure and thermal quenching. Here, these results display the virtue of combining computational and experimental techniques to solve inorganic crystal structures and assess potential phosphor hosts.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1417391
Journal Information:
Inorganic Chemistry, Vol. 57, Issue 1; ISSN 0020-1669
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
ENGLISH
Citation Metrics:
Cited by: 1 work
Citation information provided by
Web of Science

References (50)

Advances in Phosphors for Light-emitting Diodes journal May 2011
Recent Developments in the Field of Inorganic Phosphors journal May 2009
Phosphors for Solid-State White Lighting journal July 2013
Phosphors in phosphor-converted white light-emitting diodes: Recent advances in materials, techniques and properties journal December 2010
Towards enhanced ligand-centred photoluminescence in inorganic–organic frameworks for solid state lighting journal January 2011
Average and Local Structural Origins of the Optical Properties of the Nitride Phosphor La 3– x Ce x Si 6 N 11 (0 < x ≤ 3) journal November 2013
Proxies from Ab Initio Calculations for Screening Efficient Ce 3+ Phosphor Hosts journal August 2013
Average and Local Structure, Debye Temperature, and Structural Rigidity in Some Oxide Compounds Related to Phosphor Hosts journal March 2015
An integrated first principles and experimental investigation of the relationship between structural rigidity and quantum efficiency in phosphors for solid state lighting journal November 2016
Solid-State Chemistry with Nonmetal Nitrides journal June 1993
Solid-State Combinatorial Screening of ARSi 4 N 7 :Eu 2+ (A = Sr, Ba, Ca; R = Y, La, Lu) Phosphors journal September 2012
Magnetic Investigations and151Eu Mössbauer Spectroscopy ofMYbSi4N7 withM = Sr, Ba, Eu journal February 2004
BaYbSi4N7—Unexpected Structural Possibilities in Nitridosilicates journal September 1996
Eu 2 Si 5 N 8 and EuYbSi 4 N 7 . The First Nitridosilicates with a Divalent Rare Earth Metal journal December 1997
Synthese, Kristallstruktur und Eigenschaften der Nitridosilicate SrYbSi4N7 und BaYbSi4N7 journal January 1997
High-temperature synthesis, crystal structure, optical properties, and magnetism of the carbidonitridosilicates Ho2[Si4N6C] and Tb2[Si4N6C] journal November 2001
M2(Si,Al)4(N,C)7 (M=La,Y,Ca) carbonitrides journal January 2005
Determining a Structural Distortion and Anion Ordering in La 2 Si 4 N 6 C via Computation and Experiment journal August 2016
Preparation, Characterization, and Photoluminescence Properties of Tb 3+ -, Ce 3+ -, and Ce 3+ /Tb 3+ -Activated RE 2 Si 4 N 6 C (RE = Lu, Y, and Gd) Phosphors journal April 2011
YScSi 4 N 6 C:Ce 3+ —A Broad Cyan-Emitting Phosphor To Weaken the Cyan Cavity in Full-Spectrum White Light-Emitting Diodes journal August 2017
Color-tunable Y2Si4N6C:Ce3+ Carbonitride Phosphors for Ultraviolet Light-Emitting Diodes: Rapid Communications of the American Ceramic Society journal May 2011
From ultrasoft pseudopotentials to the projector augmented-wave method journal January 1999
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
Generalized Gradient Approximation Made Simple journal October 1996
First-principles calculations of the ferroelastic transition between rutile-type and CaCl 2 -type SiO 2 at high pressures journal October 2008
First-Principles Determination of the Soft Mode in Cubic ZrO 2 journal May 1997
FINDSYM : program for identifying the space-group symmetry of a crystal journal January 2005
Crystal orbital Hamilton populations (COHP): energy-resolved visualization of chemical bonding in solids based on density-functional calculations journal August 1993
Crystal Orbital Hamilton Population (COHP) Analysis As Projected from Plane-Wave Basis Sets journal June 2011
Analytic projection from plane-wave and PAW wavefunctions and application to chemical-bonding analysis in solids journal September 2013
LOBSTER: A tool to extract chemical bonding from plane-wave based DFT: Tool to Extract Chemical Bonding journal February 2016
Hybrid functionals based on a screened Coulomb potential journal May 2003
Preparation, Structure, and Luminescence Properties of Y[sub 2]Si[sub 4]N[sub 6]C:Ce[sup 3+] and Y[sub 2]Si[sub 4]N[sub 6]C:Tb[sup 3+] journal January 2006
A dedicated powder diffraction beamline at the Advanced Photon Source: Commissioning and early operational results journal August 2008
A twelve-analyzer detector system for high-resolution powder diffraction journal July 2008
EXPGUI , a graphical user interface for GSAS journal April 2001
VESTA 3 for three-dimensional visualization of crystal, volumetric and morphology data journal October 2011
An improved experimental determination of external photoluminescence quantum efficiency journal March 1997
The interpretation of diffuse reflectance spectra journal July 1976
First-Principles Investigations of the Structural, Vibrational and Thermochemical Properties of Barium Cerate - Another Test Case for Density-Functional Theory journal May 2013
Ab Initio Thermochemistry of Solid-State Materials journal June 2010
Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides journal September 1976
Tuning luminescent properties through solid-solution in (Ba1−xSrx)9Sc2Si6O24:Ce3+,Li+ journal April 2013
Narrow-band red-emitting Sr[LiAl3N4]:Eu2+ as a next-generation LED-phosphor material journal June 2014
Preparation of CaAlSiN 3 :Eu 2+ Phosphors by the Self-Propagating High-Temperature Synthesis and Their Luminescent Properties journal September 2007
The Influence of Carbon Vacancies and Local Atomic Displacements on the Electronic Structure of Niobium Carbides journal January 1987
Structure and interaction of point defects in transition-metal nitrides journal December 2007
Phonon Scattering by Conduction Electrons and by Lattice Vacancies in Carbides of the Transition Metals journal May 1969
Influence of defects on the luminescence quantum yield of yttrium europium oxide (Y1.94Eu0.06O3) journal March 1992
Tunable Optical Properties and Increased Thermal Quenching in the Blue-Emitting Phosphor Series: Ba 2 (Y 1– x Lu x ) 5 B 5 O 17 :Ce 3+ ( x = 0–1) journal May 2017