A NEW, HIGHLY EFFICIENT RED-EMITTING CATHODOLUMINESCENT PHOSPHOR (YVO4:Eu) FOR COLOR TELEVISION

Interpretation of europium(III) spectra

“…The triplet levels are always located at a lower energy than the singlet levels. [50,[366][367][368][369][370][371]. This mechanism is also responsible for the sensitization of the luminescence in europium(III)-doped polyoxometalate complexes [272,[372][373][374][375].…”

“…A well-known cathodoluminescent phosphor is Y 2 O 2 S:Eu 3+ , which is the red phosphor used in the old-fashioned cathode-ray tubes of color television screens or computer monitors [37,38,49]. This compound replaced the older cathodoluminescent europium(III) phosphor YVO 4 :Eu 3+ [50,51]. It is worth mentioning that europium is present in the anti-counterfeiting ink of EURO banknotes [52].…”

Synthesis, crystal structure and luminescent properties of pyrovanadates A2CaV2O7 (A=Rb, Cs)

“…Despite the large number of publications about luminescence properties of vanadates [1][2][3][4][5][6][7][8][9][10][11][12], the available experimental and theoretical data are not sufficient to give a unifying explanation of the nature of the luminescence centers in these compounds. There have been attempts to explain the nature of the bands in the optical spectra of vanadates by the presence of vanadium-oxygen clusters such as [VO 4 [12] (Table 4)).…”

“…Complex vanadium oxide compounds have drawn the attention of researchers and developers as promising luminescent materials [1][2][3][4][5][6][7][8][9][10][11][12]. The technical applications of vanadium oxides compounds have been proved by dozens of patents [5,6].…”

Influence of Dy3+ Ions on the Optical Characteristics of Nanoscaled Y1−xDyxVO4 Phosphors

“…(1) Among YVO 4 -based phosphors, the redlight YVO 4 :Eu 3+ phosphors have been extensively used in televisions, cathode ray tubes (CRTs), field emission displays (FEDs), and plasma display panels (PDPs). (2)(3)(4) Because of the 4f-4f and 5d-4f transitions, the rare-earth elements (REEs) chosen as the active centers to emit different colors of light have attracted the interest of many scientists who have investigated and synthesized REEs-based phosphors. (5) In 1975, Sommerdijk and Bril reported that the Dy 3+ active center can simultaneously emit two bands located at 470-500 and 570-600 nm.…”