Deep-level luminescence at 1.0 eV in 6H SiC
2001 (English)In: Mat. Res. Soc. Symp. Proc., Vol. 640, 2001Conference paper (Refereed)
Results from photoluminescence (PL) and Zeeman effect measurements of a PL center, labeled UD-1, in 6H SiC are presented. The spectrum consists of three no phonon-lines (NPLs) at 0.9952, 1.0015 and 1.0020 eV. The luminescence starts decreasing in intensity above 40 K and is completely quenched at 80 K. The observed Zeeman splitting reveals a spin one half of the ground state of the two highest energy lines. No splitting of the 0.9952 eV line is detected. The g║-value for the 1.0015 eV and 1.0020 e║ lines are g║ = 1:4 and g║ = 1:7, respectively. For both lines, g⊥ = 0. The C3v symmetry indicates that the UD-1 center is either a substitutional defect or a complex with its constituents lying along the c-axis of the lattice.
Place, publisher, year, edition, pages
IdentifiersURN: urn:nbn:se:liu:diva-63068DOI: 10.1557/PROC-640-H7.11OAI: oai:DiVA.org:liu-63068DiVA: diva2:376005
2000 MRS Fall Meeting & Exhibit, 27-30 November 2000, Boston, MA, United States