Determination of the optical band-gap energy of cubic and hexagonal boron nitride using luminescence excitation spectroscopy

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dc.contributor.author Evans, D. A.
dc.contributor.author McGlynn, A. G.
dc.contributor.author Towlson, B. M.
dc.contributor.author Gunn, M.
dc.contributor.author Jones, D.
dc.contributor.author Jenkins, T. E.
dc.contributor.author Winter, R.
dc.contributor.author Poolton, N. R. J.
dc.date.accessioned 2008-08-01T14:47:45Z
dc.date.available 2008-08-01T14:47:45Z
dc.date.issued 2008-02-20
dc.identifier.citation Evans , D A , McGlynn , A G , Towlson , B M , Gunn , M , Jones , D , Jenkins , T E , Winter , R & Poolton , N R J 2008 , ' Determination of the optical band-gap energy of cubic and hexagonal boron nitride using luminescence excitation spectroscopy ' Journal of Physics: Condensed Matter , vol 20 , no. 7 , 075233 . , 10.1088/0953-8984/20/7/075233 en
dc.identifier.issn 1361-648X
dc.identifier.other PURE: 77344
dc.identifier.other dspace: 2160/612
dc.identifier.uri http://hdl.handle.net/2160/612
dc.description Sponsorship: EPSRC, STFC en
dc.description.abstract Using synchrotron-based luminescence excitation spectroscopy in the energy range 4–20 eV at 8 K, the indirect _x005F_x0002_–X optical band-gap transition in cubic boron nitride is determined as 6.36 ± 0.03 eV, and the quasi-direct band-gap energy of hexagonal boron nitride is determined as 5.96 ± 0.04 eV. The composition and structure of the materials are self-consistently established by optically detected x-ray absorption spectroscopy, and both x-ray diffraction and Raman measurements on the same samples give independent confirmation of their chemical and structural purity: together, the results are therefore considered as providing definitive measurements of the optical band-gap energies of the two materials. en
dc.language.iso eng
dc.relation.ispartof Journal of Physics: Condensed Matter en
dc.title Determination of the optical band-gap energy of cubic and hexagonal boron nitride using luminescence excitation spectroscopy en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.identifier.doi http://dx.doi.org/10.1088/0953-8984/20/7/075233
dc.contributor.institution Institute of Mathematics & Physics (ADT) en
dc.contributor.institution Mathematics and Physics en
dc.description.status Peer reviewed en


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