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Probing the bandgap and effects of t-BN domains in h-BN neutron detectors
- Source :
- Applied Physics Express. 15:101003
- Publication Year :
- 2022
- Publisher :
- IOP Publishing, 2022.
-
Abstract
- Thermal neutron detectors in a lateral scheme were fabricated from a 70 μm thick freestanding B-10 enriched hexagonal BN (h-10BN). Two sets of channel peaks corresponding to the neutron capture by 10B occurring in h-10BN comprising turbostratic domains (t-10BN) have been recognized in the nuclear reaction pulsed height spectrum, from which a bandgap of 5.5 eV was directly deduced for t-10BN. Improved device performance over the prior state-of-the-art implies that the transport properties in the lateral plane of t-BN domains are sufficiently good and their presence in h-BN is not a showstopper for the further advancement of h-BN detector technologies.
- Subjects :
- General Engineering
General Physics and Astronomy
Subjects
Details
- ISSN :
- 18820786 and 18820778
- Volume :
- 15
- Database :
- OpenAIRE
- Journal :
- Applied Physics Express
- Accession number :
- edsair.doi...........695d57139565f8daadb12262b12161a8