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

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

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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AU - Grenadier, S. J.

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AU - Lin, J. Y.

AU - Jiang, H. X.

PY - 2020/4/6

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