High-Performance Next-Generation Perovskite Nanocrystal Scintillator for Nondestructive X-Ray Imaging

Jin Hyuck Heo; Dong Hee Shin; Jin Kyoung Park; Do Hun Kim; Sang Jin Lee; Sang Hyuk Im

doi:10.1002/adma.201801743

High-Performance Next-Generation Perovskite Nanocrystal Scintillator for Nondestructive X-Ray Imaging

Jin Hyuck Heo, Dong Hee Shin, Jin Kyoung Park, Do Hun Kim, Sang Jin Lee, Sang Hyuk Im

Research output: Contribution to journal › Article

27 Citations (Scopus)

Abstract

Readily commercializable and cost-effective next-generation CsPbBr ₃ perovskite nanocrystals (PNCs) based X-ray detectors are demonstrated. The PNCs-based X-ray detector exhibits higher spatial resolution (9.8 lp mm ⁻¹ at modulation transfer function (MTF) = 0.2 and 12.5–8.9 lp mm ⁻¹ for a linear line chart), faster response time (≈200 ns), and comparable stability (>40 Gy _air s ⁻¹ of X-ray exposure) compared with the commercialized terbium-doped gadolinium oxysulfide (GOS)-based detectors (spatial resolution = 6.2 lp mm ⁻¹ at MTF = 0.2 and 6.3 lp mm ⁻¹ for a linear line chart, response time = ≈1200 ns) because the PNCs-based scintillator has ≈5.6-fold faster average photoluminescence lifetime and stronger emission than the GOS-based one.

Original language	English
Article number	1801743
Journal	Advanced Materials
Volume	30
Issue number	40
DOIs	https://doi.org/10.1002/adma.201801743
Publication status	Published - 2018 Oct 4

Keywords

cesium lead tribromide
nanocrystals
perovskite
scintillators
X-ray imaging

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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Heo, J. H., Shin, D. H., Park, J. K., Kim, D. H., Lee, S. J., & Im, S. H. (2018). High-Performance Next-Generation Perovskite Nanocrystal Scintillator for Nondestructive X-Ray Imaging. Advanced Materials, 30(40), [1801743]. https://doi.org/10.1002/adma.201801743

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title = "High-Performance Next-Generation Perovskite Nanocrystal Scintillator for Nondestructive X-Ray Imaging",

abstract = " Readily commercializable and cost-effective next-generation CsPbBr 3 perovskite nanocrystals (PNCs) based X-ray detectors are demonstrated. The PNCs-based X-ray detector exhibits higher spatial resolution (9.8 lp mm −1 at modulation transfer function (MTF) = 0.2 and 12.5–8.9 lp mm −1 for a linear line chart), faster response time (≈200 ns), and comparable stability (>40 Gy air s −1 of X-ray exposure) compared with the commercialized terbium-doped gadolinium oxysulfide (GOS)-based detectors (spatial resolution = 6.2 lp mm −1 at MTF = 0.2 and 6.3 lp mm −1 for a linear line chart, response time = ≈1200 ns) because the PNCs-based scintillator has ≈5.6-fold faster average photoluminescence lifetime and stronger emission than the GOS-based one. ",

keywords = "cesium lead tribromide, nanocrystals, perovskite, scintillators, X-ray imaging",

author = "Heo, {Jin Hyuck} and Shin, {Dong Hee} and Park, {Jin Kyoung} and Kim, {Do Hun} and Lee, {Sang Jin} and Im, {Sang Hyuk}",

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AU - Lee, Sang Jin

AU - Im, Sang Hyuk

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N2 - Readily commercializable and cost-effective next-generation CsPbBr 3 perovskite nanocrystals (PNCs) based X-ray detectors are demonstrated. The PNCs-based X-ray detector exhibits higher spatial resolution (9.8 lp mm −1 at modulation transfer function (MTF) = 0.2 and 12.5–8.9 lp mm −1 for a linear line chart), faster response time (≈200 ns), and comparable stability (>40 Gy air s −1 of X-ray exposure) compared with the commercialized terbium-doped gadolinium oxysulfide (GOS)-based detectors (spatial resolution = 6.2 lp mm −1 at MTF = 0.2 and 6.3 lp mm −1 for a linear line chart, response time = ≈1200 ns) because the PNCs-based scintillator has ≈5.6-fold faster average photoluminescence lifetime and stronger emission than the GOS-based one.

AB - Readily commercializable and cost-effective next-generation CsPbBr 3 perovskite nanocrystals (PNCs) based X-ray detectors are demonstrated. The PNCs-based X-ray detector exhibits higher spatial resolution (9.8 lp mm −1 at modulation transfer function (MTF) = 0.2 and 12.5–8.9 lp mm −1 for a linear line chart), faster response time (≈200 ns), and comparable stability (>40 Gy air s −1 of X-ray exposure) compared with the commercialized terbium-doped gadolinium oxysulfide (GOS)-based detectors (spatial resolution = 6.2 lp mm −1 at MTF = 0.2 and 6.3 lp mm −1 for a linear line chart, response time = ≈1200 ns) because the PNCs-based scintillator has ≈5.6-fold faster average photoluminescence lifetime and stronger emission than the GOS-based one.

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