High efficiency hexagonal boron nitride neutron detectors with 1 cm 2 detection areas

Maity, A.; Grenadier, S. J.; Li, J.; Lin, J. Y.; Jiang, H. X.

doi:10.1063/1.5143808

High efficiency hexagonal boron nitride neutron detectors with 1 cm ² detection areas

Journal Article · Mon Apr 06 00:00:00 EDT 2020 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.5143808· OSTI ID:1799127

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Texas Tech University (United States). Department of Electrical and Computer Engineering; OSTI
Texas Tech University (United States). Department of Electrical and Computer Engineering

We report the realization of 1 cm² hexagonal boron nitride (h-BN) thermal neutron detectors with an unprecedented detection efficiency of 59%. This was achieved through improvements in material quality, as reflected in a sixfold enhancement in the electron mobility and lifetime product and a threefold reduction in the surface recombination field, which resulted in a higher detection efficiency at a lower applied electric field over that of a previous state-of-the-art lateral detector with a detection area of 30 mm². The attainment of 1 cm² h-BN neutron detectors capable of retaining a high detection efficiency represents a significant milestone toward the practical applications of h-BN detectors.

View Accepted Manuscript (DOE)

Research Organization:: Texas Tech Univ., Lubbock, TX (United States)

Sponsoring Organization:: USDOE Advanced Research Projects Agency - Energy (ARPA-E)

Grant/Contract Number:: AR0000964

OSTI ID:: 1799127

Alternate ID(s):: OSTI ID: 1608379

Journal Information:: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 14 Vol. 116; ISSN 0003-6951

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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