Figure 6
From: Optically-active metastable defects in volumetric nanoplasmonic composites
Differences between MGR1 and MG1 defect centres highlighted by the differences in the dependence of their luminescence on temperature. (a) Arrhenius plot of MGR1 defect-related PL vs. 1/kT for NBP:nAg:Er3+. (b) Linear plot of MG1 defect-related PL vs. temperature for NBP:nAg:Er3+ and NBP:nAg. (c) Variation of the full-width-at-half-maximum (FWHM) of the MGR1 and MG1 emissions with the square root of the temperature (triangles). Dashed curves are theoretical fits according to the configurational coordinate model. The dotted curve represents the exponential fit. (d) Thermal shift of the MGR1 and MG1 emission peak energy towards lower energy values as the temperature increases.
