Excitons at the B K edge of boron nitride nanotubes probed by x-ray absorption spectroscopy

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F10%3A10071611" target="_blank" >RIV/00216208:11320/10:10071611 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Excitons at the B K edge of boron nitride nanotubes probed by x-ray absorption spectroscopy

Original language description

We have performed a near-edge x-ray absorption fine-structure (NEXAFS) investigation of multi-walled boron nitride nanotubes (BNNTs). We show that the one-dimensionality of BNNTs is clearly evident in the B K edge spectrum, while the N K edge spectrum issimilar to that of layered hexagonal BN (h-BN). We observe a sharp feature at the sigma* onset of the B K edge, which we ascribe to a core exciton state. We also report a comparison with spectra taken after an ammonia plasma treatment, showing that theB K edge becomes indistinguishable from that of h-BN, due to the breaking of the tubular order and the formation of small h-BN clusters.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

<a href="/en/project/LC06058" target="_blank" >LC06058: Center of synchrotron radiation materials study</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2010

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Physics Condensed Matter

ISSN

0953-8984

e-ISSN

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Volume of the periodical

22

Issue of the periodical within the volume

29

Country of publishing house

GB - UNITED KINGDOM

Number of pages

4

Pages from-to

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UT code for WoS article

000279616000005

EID of the result in the Scopus database

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