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Simulation and design of folded perovskite x-ray detectors

Mescher, Henning; Hamann, Elias; Lemmer, Uli

A variety of medical, industrial, and scientific applications requires highly sensitive and cost-effective x-ray detectors for photon energies ranging from keV to MeV. Adapting the thickness of polycrystalline or single crystal conversion layers especially to high-energy applications increases the complexity of fabrication and potentially decreases the performance of conventional direct conversion x-ray detectors. To tackle the challenges with respect to the active layer thickness and to combine the superior performance of single crystal materials with the low-cost nature of polycrystalline conversion layers, we investigate thin film x-ray detector technologies based on a folded device architecture. Analytical models simulating the sensitivity and the detective quantum efficiency (DQE) are used to evaluate the performance of folded detectors based on polycrystalline organic-inorganic perovskite semiconductors in various layout configurations and for different photon energies. Simulations of folded perovskite devices show high sensitivities. The DQE analysis introduces additional noise related boundary conditions for the folding length. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000092694
Veröffentlicht am 26.03.2019
DOI: 10.1038/s41598-019-41440-6
Zitationen: 4
Web of Science
Zitationen: 4
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Mikrostrukturtechnik (IMT)
Lichttechnisches Institut (LTI)
Institut für Photonenforschung und Synchrotronstrahlung (IPS)
3D Matter Made to Order (3DMM2O)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2019
Sprache Englisch
Identifikator ISSN: 2045-2322
KITopen-ID: 1000092694
HGF-Programm 43.23.04 (POF III, LK 01)
Nanophotonics for Energy Conversion
Erschienen in Scientific reports
Band 9
Heft 1
Seiten Article no: 5231
Projektinformation 3DMM2O (DFG, DFG EXSTRAT, EXC 2082/1)
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Vorab online veröffentlicht am 26.03.2019
Nachgewiesen in Web of Science
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