Journal
ADVANCED MATERIALS
Volume 30, Issue 40, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201801743
Keywords
cesium lead tribromide; nanocrystals; perovskite; scintillators; X-ray imaging
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Funding
- National Research Foundation of Korea (NRF) under the Ministry of Science, ICT & Future Planning (Basic Science Research Program) [2014R1A5A1009799]
- Nano-Material Technology Development Program [2017M3A7B4041696]
- Technology Development Program to Solve Climate Change [2015M1A2A2055631]
- Global Frontier R&D Program on Center for Multiscale Energy System [2012M3A6A7054855]
- National Research Foundation of Korea [2014R1A5A1009799, 2012M3A6A7054855, 2017M3A7B4041696] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Readily commercializable and cost-effective next-generation CsPbBr3 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 (approximate to 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 = approximate to 1200 ns) because the PNCs-based scintillator has approximate to 5.6-fold faster average photoluminescence lifetime and stronger emission than the GOS-based one.
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