3D Microstructured Inorganic Perovskite Materials for Thermal Neutron Detection

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dc.contributor.authorCaraveo-Frescas, Jesus A.
dc.contributor.authorReyes-Banda, Martin G.
dc.contributor.authorFernandez-Izquierdo, Leunam
dc.contributor.authorQuevedo-Lopez, Manuel A.
dc.date.accessioned2025-01-20T22:01:08Z
dc.date.available2025-01-20T22:01:08Z
dc.date.issued2022
dc.description.abstractA combination of novel techniques such as a solvent-free thin-film deposition, perovskite patterning, and B-10 back-fill technique enables the high neutron detection efficiency in a perovskite-based microstructured thermal neutron detector. High-efficiency cesium lead bromide (CsPbBr3) perovskite-based microstructured detectors are demonstrated here. Trenches up to 10 mu m deep are etched into the CsPbBr3 thin films using a novel dry etching process involving a combination of HBr and Ar plasma. The microstructured diodes are then backfilled with isotopically enriched boron as neutron conversion material via a sedimentation process to preserve the perovskite integrity. The fabricated microstructured CsPbBr3 thermal neutron detectors show an efficiency of 4.3%. This represents >1.2x efficiency improvement over planar silicon (3.5%) and >2x efficiency improvement over planar CsPbBr3 (2.1%) detectors, respectively. More importantly, gamma-ray discrimination of 10(7) is measured in CsPbBr3-based microstructured neutron detectors.
dc.fuente.origenWOS
dc.identifier.doi10.1002/admt.202100956
dc.identifier.issn2365-709X
dc.identifier.urihttps://doi.org/10.1002/admt.202100956
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/93796
dc.identifier.wosidWOS:000739798400001
dc.issue.numero6
dc.language.isoen
dc.revistaAdvanced materials technologies
dc.rightsacceso restringido
dc.subjectetching
dc.subjectMonte-Carlo simulations
dc.subjectneutron detection
dc.subjectperovskites
dc.subject.ods07 Affordable and Clean Energy
dc.subject.odspa07 Energía asequible y no contaminante
dc.title3D Microstructured Inorganic Perovskite Materials for Thermal Neutron Detection
dc.typeartículo
dc.volumen7
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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