Luminescence and ultraviolet excitation spectroscopy of SrI2 and SrI2:Eu2

• Published in: Radiation measurements Vol. 56; pp. 13 - 17
• Main Authors: Pankratov, V., Popov, A.I., Shirmane, L., Kotlov, A., Bizarri, G.A., Burger, A., Bhattacharya, P., Tupitsyn, E., Rowe, E., Buliga, V.M., Williams, R.T.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Kidlington Elsevier Ltd 01.09.2013; Elsevier
• Subjects: Absorption spectroscopy; Band spectra; Crystals; Earth sciences; Earth, ocean, space; Exact sciences and technology; Excitation; Excitation spectra; Excitation spectroscopy; Geochronology; Isotope geochemistry. Geochronology; Luminescence; Radiation measurement; Strontium iodide; Synchrotron radiation; Ultraviolet; Strontium iodide; Excitation spectroscopy; Synchrotron radiation; Luminescence; spectra; crystals; strontium; aluminum; low temperature; halides; iodides; luminescence; absorption spectroscopy; temperature; oxygen; synchrotron radiation; energy
• ISSN: 1350-4487; 1879-0925
• DOI: 10.1016/j.radmeas.2013.02.022

We report measurements of luminescence and its ultraviolet excitation spectra in SrI2 and SrI2:Eu2+ at temperatures of 10 and 300 K. Attention is focused on determining the exciton energy and its temperature shift from features of the excitation spectra and limits placed by absorption spectroscopy on a 120 μm thin crystal, on observation of a broadened Eu emission band attributed to trace Eu associated with oxygen in nominally undoped crystals, and on adding observations concerning the 3.4 eV band at low temperature attributed by Pustovarov et al. to the self-trapped exciton. ► Luminescence properties of SrI2 and SrI2:Eu single crystals have been investigated. ► Excitation spectroscopy technique using synchrotron radiation was applied. ► Excitonic properties in nominally pure and europium doped crystals have been studied.