High efficiency hexagonal boron nitride neutron detectors with 1 cm2 detection areas

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

doi:10.1063/1.5143808

High efficiency hexagonal boron nitride neutron detectors with 1 cm² detection areas

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

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Abstract

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.

Original language	English
Article number	142102
Journal	Applied Physics Letters
Volume	116
Issue number	14
DOIs	https://doi.org/10.1063/1.5143808
State	Published - Apr 6 2020

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title = "High efficiency hexagonal boron nitride neutron detectors with 1 cm2 detection areas",

abstract = "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.",

author = "A. Maity and Grenadier, {S. J.} and J. Li and Lin, {J. Y.} and Jiang, {H. X.}",

note = "Funding Information: This research was supported by DOE ARPA-E (No. DE-AR0000964) and monitored by Dr. Isik Kizilyalli. Jiang and Lin are grateful to the AT&T Foundation for the support of Ed Whitacre and Linda Whitacre endowed chairs. Publisher Copyright: {\textcopyright} 2020 Author(s).",

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doi = "10.1063/1.5143808",

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T1 - High efficiency hexagonal boron nitride neutron detectors with 1 cm2 detection areas

AU - Maity, A.

AU - Grenadier, S. J.

AU - Li, J.

AU - Lin, J. Y.

AU - Jiang, H. X.

N1 - Funding Information: This research was supported by DOE ARPA-E (No. DE-AR0000964) and monitored by Dr. Isik Kizilyalli. Jiang and Lin are grateful to the AT&T Foundation for the support of Ed Whitacre and Linda Whitacre endowed chairs. Publisher Copyright: © 2020 Author(s).

PY - 2020/4/6

Y1 - 2020/4/6

N2 - 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.

AB - 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.

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JF - Applied Physics Letters

SN - 0003-6951

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ER -

High efficiency hexagonal boron nitride neutron detectors with 1 cm² detection areas

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