Articolul precedent |
Articolul urmator |
521 2 |
Ultima descărcare din IBN: 2019-08-30 07:47 |
Căutarea după subiecte similare conform CZU |
535.37+538.9+621.38 (2) |
Propagation. Reflection. Refraction. Absorption. Emission (99) |
Condensed matter physics. Solid state physics (349) |
Electrical engineering (1163) |
SM ISO690:2012 SHESHIN, E., OZOL, Dmitry, DANILKIN, M., VERESCHAGINA, N.. Cathodoluminescent UV-source using a lithium tetraborate phosphor. In: Materials Science and Condensed Matter Physics, Ed. 9, 25-28 septembrie 2018, Chișinău. Chișinău, Republica Moldova: Institutul de Fizică Aplicată, 2018, Ediția 9, p. 187. |
EXPORT metadate: Google Scholar Crossref CERIF DataCite Dublin Core |
Materials Science and Condensed Matter Physics Ediția 9, 2018 |
||||||
Conferința "International Conference on Materials Science and Condensed Matter Physics" 9, Chișinău, Moldova, 25-28 septembrie 2018 | ||||||
|
||||||
CZU: 535.37+538.9+621.38 | ||||||
Pag. 187-187 | ||||||
|
||||||
Descarcă PDF | ||||||
Rezumat | ||||||
Research in the field of new UV-radiation sources is topical due to several reasons. First, there is a decision to get rid of mercury-containing light sources, both in industry and in the private life (Minamata Convention on Mercury). Second, the UV-radiation sources with improved spectral characteristics are needed for photochemical processes, disinfection, medical treatments. Cathode-ray radiation sources represent one of possible solutions. The electron-beam excitation of a luminophore is well-known in CRT having a long application history in TV sets and information displays. By replacing the phosphor with a UV-emitting one, it is possible to create sources of UV-radiation. Many types of UV-band luminophores are already known with an efficiency of cathodoluminescence up to 9% [1] and even 20%. The theoretical limit is 40-50%. The use of the non-heated field emission cathode allows decreasing the power consumption of the device and increases its service life. Carbon fiber based field emission cathodes for cathode-ray light sources have been already proposed and investigated [2]. Lithium Tetraborate (LTB) based phosphors are promising due to the stability under the electron beam. Some of LTB phosphors have been synthesized and tested. |
||||||
|