Device response principles and the impact on energy resolution of epitaxial quantum dot scintillators with monolithic photodetector integration

Minns, Allan; Mahajan, Tushar; Tokranov, Vadim; Yakimov, Michael; Hedges, Michael; Murat, Pavel; Oktyabrsky, Serge

doi:10.1038/s41598-024-74160-7

Title: Device response principles and the impact on energy resolution of epitaxial quantum dot scintillators with monolithic photodetector integration

Journal Article · 01 October 2024 · Scientific Reports

DOI: https://doi.org/10.1038/s41598-024-74160-7 · OSTI ID:2453930

Minns, Allan; Mahajan, Tushar; Tokranov, Vadim; Yakimov, Michael; Hedges, Michael; Murat, Pavel; Oktyabrsky, Serge

Abstract Epitaxial quantum dot (QD) scintillator crystals with picosecond-scale timing and high light yield have been created for medical imaging, high energy physics and national security applications. Monolithic photodetector (PD) integration enables the sensing of photons generated within the waveguiding crystal and allows a wide range of scintillator-photodetector coupling geometries. Until recently, these doubly novel devices have suffered from complex, high variance responses to monoenergetic sources which significantly reduces their precision and accuracy. The principles governing the overall device response have now been discerned and embodied by an expression derived within a geometrical optics framework which considers optical properties, surface roughness and photodetector coupling geometry. Response variation due to these factors was sufficiently reduced to obtain material-related energy resolution values of 2.4% with alpha particles. These findings place energy resolution alongside luminescence timescale, photon yield, and radiation hardness as outstanding properties of these engineered materials.

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Sponsoring Organization:: USDOE

Grant/Contract Number:: SC0022344

OSTI ID:: 2453930

Journal Information:: Scientific Reports, Journal Name: Scientific Reports Journal Issue: 1 Vol. 14; ISSN 2045-2322

Publisher:: Nature Publishing GroupCopyright Statement

Country of Publication:: United Kingdom

Language:: English

References (17)

Structural studies of a combined InAlAs–InGaAs capping layer on 1.3-μm Inas/GaAs quantum dots Tey, C. M.; Liu, H. Y.; Cullis, A. G. Journal of Crystal Growth, Vol. 285, Issue 1-2 https://doi.org/10.1016/j.jcrysgro.2005.06.059	journal	November 2005
Optical Properties of InAs Quantum Dots/GaAs Waveguides for Ultra-fast Scintillators Dropiewski, K.; Minns, A.; Yakimov, M. Journal of Luminescence, Vol. 220 https://doi.org/10.1016/j.jlumin.2019.116952	journal	April 2020
Pulse-shape discrimination with crystal scintillators Bardelli, L.; Bini, M.; Bizzeti, P. G. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 584, Issue 1 https://doi.org/10.1016/j.nima.2007.10.021	journal	January 2008
Energy resolution of scintillation detectors Moszyński, M.; Syntfeld-Każuch, A.; Swiderski, L. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 805 https://doi.org/10.1016/j.nima.2015.07.059	journal	January 2016
Performance of the CMS precision electromagnetic calorimeter at the LHC Run II and prospects for high-luminosity LHC Negro, Giulia Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 912 https://doi.org/10.1016/j.nima.2017.10.079	journal	December 2018
Ultrafast Waveguiding Quantum Dot Scintillation Detector Dropiewski, K.; Minns, A.; Yakimov, M. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 954 https://doi.org/10.1016/j.nima.2018.10.150	journal	February 2020
Scintillation properties of GAGG:Ce ceramic and single crystal Zhu, Yao; Qian, Sen; Wang, Zhigang Optical Materials, Vol. 105 https://doi.org/10.1016/j.optmat.2020.109964	journal	July 2020
Optimization of thickness of GAGG scintillator for detecting an alpha particle emitter in a field of high beta and gamma background Morishita, Yuki; Yamamoto, Seiichi; Izaki, Kenji Radiation Measurements, Vol. 112 https://doi.org/10.1016/j.radmeas.2018.02.003	journal	May 2018
Radiative recombination lifetime of excitons in self-organized InAs/GaAs quantum dots Melliti, A.; Maaref, M. A.; Hassen, F. Solid State Communications, Vol. 128, Issue 6-7 https://doi.org/10.1016/j.ssc.2003.08.020	journal	November 2003
GaAs, AlAs, and Al _x Ga _{1− x} As: Material parameters for use in research and device applications Adachi, Sadao Journal of Applied Physics, Vol. 58, Issue 3 https://doi.org/10.1063/1.336070	journal	August 1985
Extreme selectivity in the lift‐off of epitaxial GaAs films Yablonovitch, Eli; Gmitter, T.; Harbison, J. P. Applied Physics Letters, Vol. 51, Issue 26, p. 2222-2224 https://doi.org/10.1063/1.98946	journal	December 1987
Barium Fluoride as a Gamma Ray and Charged Particle Detector Farukhi, M. R.; Swinehart, C. F. IEEE Transactions on Nuclear Science, Vol. 18, Issue 1 https://doi.org/10.1109/TNS.1971.4325864	journal	January 1971
Investigating the energy resolution of arrays of small scintillation crystals Herbert, D. J.; Meng, L. J.; Ramsden, D. IEEE Transactions on Nuclear Science, Vol. 49, Issue 3 https://doi.org/10.1109/TNS.2002.1039592	journal	June 2002
Fundamental Limitations in the Performance of ${\rm Ce}^{3+}$–, ${\rm Pr}^{3+}$–, and ${\rm Eu}^{2+}$–Activated Scintillators Dorenbos, Pieter IEEE Transactions on Nuclear Science, Vol. 57, Issue 3 https://doi.org/10.1109/TNS.2009.2031140	journal	June 2010
Integrated Semiconductor Quantum Dot Scintillation Detector: Ultimate Limit for Speed and Light Yield Oktyabrsky, Serge; Yakimov, Michael; Tokranov, Vadim IEEE Transactions on Nuclear Science, Vol. 63, Issue 2 https://doi.org/10.1109/TNS.2015.2502426	journal	April 2016
Comprehensive analysis of escape-cone losses from luminescent waveguides McDowall, Stephen; Butler, Tristan; Bain, Edward Applied Optics, Vol. 52, Issue 6 https://doi.org/10.1364/ao.52.001230	journal	January 2013
Linear systems formulation of scattering theory for rough surfaces with arbitrary incident and scattering angles Krywonos, Andrey; Harvey, James E.; Choi, Narak Journal of the Optical Society of America A, Vol. 28, Issue 6 https://doi.org/10.1364/josaa.28.001121	journal	May 2011

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