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Title: Excitons in scintillator materials: Optical properties and electron-energy loss spectra of NaI, LaBr 3 , BaI 2 , and SrI 2

Journal Article · · Journal of Materials Research
DOI:https://doi.org/10.1557/jmr.2016.395· OSTI ID:1507593

In this paper, materials for scintillator radiation detectors need to fulfill a diverse set of requirements such as radiation hardness and highly specific response to incoming radiation, rendering them a target of current materials design efforts. Even though they are amenable to cutting-edge theoretical spectroscopy techniques, surprisingly many fundamental properties of scintillator materials are still unknown or not well explored. In this work, we use first-principles approaches to thoroughly study the optical properties of four scintillator materials: NaI, LaBr3, BaI2, and SrI2. By solving the Bethe–Salpeter equation for the optical polarization function we study the influence of excitonic effects on dielectric and electron-energy loss functions. This work sheds light into fundamental optical properties of these four scintillator materials and lays the ground-work for future work that is geared toward accurate modeling and computational materials design of advanced radiation detectors with unprecedented energy resolution.

Research Organization:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1507593
Alternate ID(s):
OSTI ID: 1438725
Report Number(s):
LLNL-JRNL-700065; PII: S0884291416003952
Journal Information:
Journal of Materials Research, Journal Name: Journal of Materials Research Vol. 32 Journal Issue: 1; ISSN 0884-2914
Publisher:
Cambridge University Press (CUP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 6 works
Citation information provided by
Web of Science

References (57)

Generalized Gradient Approximation Made Simple journal October 1996
High-energy-resolution scintillator: Ce3+ activated LaBr3 journal September 2001
High-Throughput Combinatorial Database of Electronic Band Structures for Inorganic Scintillator Materials journal June 2011
Projector augmented-wave method journal December 1994
Improvement of γ-ray energy resolution of LaBr3:Ce3+ scintillation detectors by Sr2+ and Ca2+ co-doping journal April 2013
Auger recombination in sodium-iodide scintillators from first principles journal April 2015
Data mining and accelerated electronic structure theory as a tool in the search for new functional materials journal February 2009
Cesium hafnium chloride: A high light yield, non-hygroscopic cubic crystal scintillator for gamma spectroscopy journal October 2015
The role of different linear and non-linear channels of relaxation in scintillator non-proportionality journal December 2009
Improvement of LaBr 3 :5%Ce scintillation properties by Li + , Na + , Mg 2+ , Ca 2+ , Sr 2+ , and Ba 2+ co-doping journal June 2013
From ultrasoft pseudopotentials to the projector augmented-wave method journal January 1999
Nonproportionality of Scintillator Detectors. III. Temperature Dependence Studies journal October 2014
Near optical isotropy in noncubic SrI2: Density functional calculations journal May 2008
Localized Effective Charges in Diatomic Crystals journal August 1971
Electron thermalization and trapping rates in pure and doped alkali and alkaline-earth iodide crystals studied by picosecond optical absorption journal April 2014
Density-functional theory and strong interactions: Orbital ordering in Mott-Hubbard insulators journal August 1995
Excitation density, diffusion-drift, and proportionality in scintillators journal November 2010
Indium-oxide polymorphs from first principles: Quasiparticle electronic states journal April 2008
Electronic structure of LaBr 3 from quasiparticle self-consistent G W calculations journal March 2012
Electronic excitations: density-functional versus many-body Green’s-function approaches journal June 2002
Ab initio theory of excitons and optical properties for spin-polarized systems: Application to antiferromagnetic MnO journal May 2008
Optical Absorption Length, Scattering Length, and Refractive Index of ${\rm LaBr}_{3}\!\!:\!\!{\rm Ce}^{3+}$ journal June 2012
Effect of ${\rm Ca}^{2+}$ Co-Doping on the Scintillation Kinetics of Ce Doped ${\rm Gd}_{3}{\rm Ga}_{3}{\rm Al}_{2}{\rm O}_{12}$ journal February 2014
Bethe–Salpeter calculation of optical-absorption spectra of In 2 O 3 and Ga 2 O 3 journal January 2015
Pulse Shape Discrimination in Impure and Mixed Single-Crystal Organic Scintillators journal December 2011
The effect of energy resolution on the extraction of information content from gamma-ray spectra
  • Nelson, Karl E.; Gosnell, Thomas B.; Knapp, David A.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 659, Issue 1 https://doi.org/10.1016/j.nima.2011.06.057
journal December 2011
Ab initio description of quasiparticle band structures and optical near-edge absorption of transparent conducting oxides journal May 2012
Efficient O ( N 2 ) method to solve the Bethe-Salpeter equation journal February 2003
Kinetic Monte Carlo simulations of excitation density dependent scintillation in CsI and CsI(Tl): Kinetic Monte Carlo simulations of scintillation in CsI and CsI(Tl) journal March 2013
Computer simulation of the light yield nonlinearity of inorganic scintillators journal June 2009
Strontium iodide scintillators for high energy resolution gamma ray spectroscopy conference August 2008
Nonproportionality of Scintillator Detectors: Theory and Experiment journal August 2009
Self-Consistent Equations Including Exchange and Correlation Effects journal November 1965
Interplay of excitonic effects and van Hove singularities in optical spectra: CaO and AlN polymorphs journal August 2011
Monte Carlo simulation of gamma-ray response of BaF 2 and CaF 2 journal November 2013
First-principles study of lattice dynamics and thermodynamic properties of La Cl 3 and La Br 3 journal August 2007
Optical and energy-loss spectra of MgO, ZnO, and CdO from ab initio many-body calculations journal July 2009
Energieverlustspektren der Alkalihalogenide und der Metalle Cu, Ag und Au und Vergleich mit optischen Messungen journal October 1966
Potential scintillators identified by electronic structure calculations
  • Klintenberg, Mattias; Derenzo, Stephen E.; Weber, Marvin J.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 486, Issue 1-2 https://doi.org/10.1016/S0168-9002(02)00723-4
journal June 2002
Special points for Brillouin-zone integrations journal June 1976
Origin of resolution enhancement by co-doping of scintillators: Insight from electronic structure calculations journal May 2014
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
Strontium and barium iodide high light yield scintillators journal February 2008
Optimization of scintillation performance via a combinatorial multi-element co-doping strategy: Application to NaI:Tl journal August 2015
Discrete Electronic Bands in Semiconductors and Insulators: Potential High-Light-Yield Scintillators journal May 2015
Quasiparticle spectra, absorption spectra, and excitonic properties of NaI and SrI 2 from many-body perturbation theory journal February 2014
Inhomogeneous Electron Gas journal November 1964
Linear optical properties in the projector-augmented wave methodology journal January 2006
Carrier Self-trapping and Luminescence in Intrinsically Activated Scintillator: Cesium Hafnium Chloride (Cs 2 HfCl 6 ) journal May 2016
Ground State of the Electron Gas by a Stochastic Method journal August 1980
First-principles search for efficient activators for LaI3 journal August 2016
From Luminescence Non-Linearity to Scintillation Non-Proportionality journal June 2008
First-principles study of codoping in lanthanum bromide journal April 2015
Host structure dependence of light yield and proportionality in scintillators in terms of hot and thermalized carrier transport journal July 2012
Ab initio calculation of ε 2 ( ω ) including the electron-hole interaction: Application to GaN and CaF 2 journal February 1999
Implementation and performance of the frequency-dependent G W method within the PAW framework journal July 2006
An efficient method for calculating quasiparticle energies in semiconductors journal November 1992

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