Abstract

It has been established that, when phosphors are irradiated by an electron beam, their brightness increases because of the decay of the ZnS-Cu2S solid solution, with the formation of additional heterojunctions and "blue" luminescence centers [Cut]dn [CuZn]a. It is shown that there is an optimum concentration of the dopant (copper) in the phosphor, at which the greatest increase of brightness and stability is achieved. The luminescence color can be displaced toward the blue region as a result of the irradiation, not only without lowering the brightness, but even increasing it.

Trapping Action in Electroluminescent Zinc Sulfide Phosphors*

C. H. Haake
J. Opt. Soc. Am. 47(10) 881-887 (1957)

Electroluminescence of Zinc Sulfide Phosphors as an Equilibrium Process

Willi Lehmann
J. Opt. Soc. Am. 48(9) 647-653 (1958)

Enhancing light emission in flexible AC electroluminescent devices by tetrapod-like zinc oxide whiskers

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Opt. Express 24(20) 23419-23428 (2016)

Blue and white light modulation of a flexible electroluminescent device based on phosphors

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Opt. Lett. 47(22) 5770-5772 (2022)

Intense red-emitting Y₄Al₂O₉:Eu³⁺phosphor with short decay time and high color purity for advanced plasma display panel

Ravishanker Yadav, Atif F. Khan, Ashish Yadav, Harish Chander, Divi Haranath, Bipin Kr. Gupta, Virendra Shanker, and Santa Chawla
Opt. Express 17(24) 22023-22030 (2009)