Title :
Emission properties of phosphors for high temperature sensor applications
Author :
Bugos, A.R. ; Allison, S.W. ; Beshears, D.L. ; Cates, M.R.
Author_Institution :
Tennessee Univ., Knoxville, TN, USA
Abstract :
The excitation and emission spectra of several thermographic phosphors, europium-doped yttrium oxide (Y2O3:Eu 3+), europium-doped yttrium vanadate (YVO4: Eu3+), europium-doped barium phosphate (Ba3(PO4)2: Eu2+), gadolinium-doped yttrium oxide (Y2O3: Gd), and praseodymium-doped yttrium oxysulfide (Y2O2S: Pr), have been measured as a function of temperature. The charge transfer (C-T) absorption bands for each phosphor were studied for spectral shifts and broadening. Of these particular thermophosphors, europium-doped yttrium oxide, europium-doped yttrium vanadate, and europium-doped barium phosphate show significant change in absorption band spectral position and broadening at elevated temperatures
Keywords :
luminescence of inorganic solids; phosphors; Ba3(PO4)2:Eu2+; P; Y2O2S:Pr; Y2O3:Eu3+; Y2O3:Gd; YVO:Eu3+; broadening; charge transfer absorption bands; emission properties; emission spectra; excitation; high temperature sensor applications; spectral shifts; thermographic phosphors; Absorption; Ceramics; Fluorescence; Ovens; Phosphors; Temperature dependence; Temperature measurement; Temperature sensors; Turbines; Yttrium;
Conference_Titel :
Southeastcon '88., IEEE Conference Proceedings
Conference_Location :
Knoxville, TN
DOI :
10.1109/SECON.1988.194849
