Journal article

Publication year: 2002

Pages: 1025-1031

Journal: Radiation Effects and Defects in Solids

Volume number: 157

Issue number: 6-12

ISSN: 1042-0150

eISSN: 1029-4953

DOI Link: https://doi.org/10.1080/10420150215838

Publisher: Taylor and Francis Group

Abstract: 
Using electron spin resonance (ESR) and thermally stimulated luminescence (TSL) three different electron traps based on regular W sites perturbed by oxygen vacancies have been identified in PbWO4 . Analysis of ESR spectra parameters ( g -factor values and principal axes orientations) has shown that revealed centers are (WO3 )(-) vacancy containing complex anions associated with a defect in Pb sublattice: (WO3)(-) -A(Pb) complexes. One of the centers (W-1) is thermally stable up to 350-370 K, while the other two (W-2 and W-3 ) only to 270-290 K. Above these temperatures trapped electrons become free and recombine with localized holes, giving rise to TSL glow peaks at T approximate to 323 K and 365 K. Using the initial rise method the 323 K TSL peak-shape was fitted allowing the first order recombination kinetic that gives trap parameters E = 0.88 eV and s similar or equal to 5* 10(12) 1/s.

Harvard Citation style: Laguta, V., Martini, M., Vedda, A., Rosetta, E., Nikl, M., Mihókovó, E., et al. (2002) Photoinduced oxygen-vacancy related centers in PbWO₄:: Electron spin resonance and thermally stimulated luminescence study, Radiation Effects and Defects in Solids, 157(6-12), pp. 1025-1031. https://doi.org/10.1080/10420150215838

APA Citation style: Laguta, V., Martini, M., Vedda, A., Rosetta, E., Nikl, M., Mihókovó, E., Bohácek, P., Rosa, J., Hofstätter, A., Meyer, B., & Usuki, Y. (2002). Photoinduced oxygen-vacancy related centers in PbWO₄:: Electron spin resonance and thermally stimulated luminescence study. Radiation Effects and Defects in Solids. 157(6-12), 1025-1031. https://doi.org/10.1080/10420150215838