TY - JOUR
T1 - Effects of Ultraviolet Irradiation on KBr
T2 - Gd
AU - Kristianpoller, N.
AU - Rehavy, A.
AU - Israeli, M.
PY - 1976/3/1
Y1 - 1976/3/1
N2 - The results of UV irradiation on Gd3+ doped KBr single crystals were investigated. Thermoluminescence (TL) glow curves, excitation spectra, and optical absorption were measured in comparison with pure and Sr2+ doped KBr crystals. The concentration of anion vacancies was found to be markedly enhanced by the presence of impurity ions. TL excitation spectra of Gd3+ doped samples had maxima at the α band and at the 212 nm band, which is attributed to a localized exciton state perturbed by a Gd3+ ion. Results suggest that defects responsible for the TL are created by an excitonic process.
AB - The results of UV irradiation on Gd3+ doped KBr single crystals were investigated. Thermoluminescence (TL) glow curves, excitation spectra, and optical absorption were measured in comparison with pure and Sr2+ doped KBr crystals. The concentration of anion vacancies was found to be markedly enhanced by the presence of impurity ions. TL excitation spectra of Gd3+ doped samples had maxima at the α band and at the 212 nm band, which is attributed to a localized exciton state perturbed by a Gd3+ ion. Results suggest that defects responsible for the TL are created by an excitonic process.
UR - http://www.scopus.com/inward/record.url?scp=0016929432&partnerID=8YFLogxK
U2 - 10.1002/pssb.2220740126
DO - 10.1002/pssb.2220740126
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:0016929432
SN - 0370-1972
VL - 74
SP - 245
EP - 248
JO - Physica Status Solidi (B): Basic Research
JF - Physica Status Solidi (B): Basic Research
IS - 1
ER -