Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 7, Issue 26, Pages 14456-14462Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b03492
Keywords
carbon nanotubes; boron nitride; field emission; Fowler-Nordheim equation; ab initio calculation; Mulliken charge; interlayer polarization
Funding
- Ministry of Science Technology of Taiwan [MOST-103-2112-M-007-009-MY2]
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Coating of h-BN Onto carbon nanotubes induces polarization at interfaces, and charges become localized at N and C atoms. Field emission of coated tubes is found to be highly stable, and current density fluctuates within 4%. Study further reveals that the electric field established between coatings and tubes facilitates charge transfer across interfaces and electrons are emitted through occupied and unoccupied bands of N and B atoms.
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