Possible degradation problems of lithium-tetraborate-based luminophores in cathodoluminescent UV-radiation sources

N. Yu. Vereschagina; M. I. Danilkin; M. A. Kazaryan; A. S. Selyukov; D. I. Ozol; E. P. Sheshin

doi:10.1117/12.2551629

11 December 2019 Possible degradation problems of lithium-tetraborate-based luminophores in cathodoluminescent UV-radiation sources

N. Yu. Vereschagina, M. I. Danilkin, M. A. Kazaryan, A. S. Selyukov, D. I. Ozol, E. P. Sheshin

Author Affiliations +

Proceedings Volume 11322, XIV International Conference on Pulsed Lasers and Laser Applications; 1132224 (2019) https://doi.org/10.1117/12.2551629
Event: XIV International Conference on Pulsed Lasers and Laser Applications (AMPL-2019), 2019, Tomsk, Russian Federation

Abstract

Thermal cracks in LTB:Cu luminescent ceramics are connected with the presence of air voids in the material, which decreases the heat conductance. Powder phosphor would be more stable against heat. The effects of sintering time, grinding, and subsequent annealing on the luminescence intensity are studied. Rough grinding decreases the efficiency by 15-20%, but this should be checked more thoroughly. Subsequent annealing does not affect the luminescence properties if the annealing temperature does not exceed 400 °C, but the luminescence yield decreases if the temperature exceeds 500 °C. Due to a large number of luminescence centers and a relatively small amount of electron traps, LTB:Cu should be tolerant of high radiation doses caused by bombardment with electrons in cathodoluminescent UV-radiation sources.

Citation Download Citation

N. Yu. Vereschagina, M. I. Danilkin, M. A. Kazaryan, A. S. Selyukov, D. I. Ozol, and E. P. Sheshin "Possible degradation problems of lithium-tetraborate-based luminophores in cathodoluminescent UV-radiation sources", Proc. SPIE 11322, XIV International Conference on Pulsed Lasers and Laser Applications, 1132224 (11 December 2019); https://doi.org/10.1117/12.2551629

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available