Abstract

Experimental evidence is provided for the existence, in certain infrared sensitive phosphors, of a considerable number of electron traps which do not give rise to thermoluminescence when electrons are released from them by thermal activation. These studies also provide some further information about nonradiative processes occurring during the thermoluminescence and stimulation of phosphors. Possible methods of obtaining the true distribution of the activation energies of electron traps in phosphors are discussed in some detail.

© 1951 Optical Society of America

Critical Comment on a Method for Determining Electron Trap Depths

C. H. Haake
J. Opt. Soc. Am. 47(7) 649-652 (1957)

Thermoluminescence of Manganese-Activated Zinc Fluoride Phosphors*

James S. Johnson and Ferd E. Williams
J. Opt. Soc. Am. 39(8) 709-711 (1949)

Theory of Electron Retrapping in Phosphors*,**

Robert C. Herman, Charles F. Meyer, and Helen S. Hopfield
J. Opt. Soc. Am. 38(12) 999-1006 (1948)

Determining the max effective trap depths of persistence luminescence by using trap depths continuous distributed phosphor

Shaochun Han, Xicheng Wang, Yuhua Wang, and Yanyan Li
Opt. Mater. Express 5(10) 2377-2384 (2015)

Preparation and Characteristics of Zinc Sulfide Phosphors Sensitive to Infra-Red*

Gorton R. Fonda
J. Opt. Soc. Am. 36(7) 382-389 (1946)