Introduction of various types phosphorescent materials

Phosphor types use a phosphor “phosphor”

“Inorganic powder material at a certain excitation conditions can be light, sometimes also called light pink, crystalline phosphors or phosphor according to the type of excitation mode can be divided into organic light-emitting phosphor, the electroluminescent phosphor, cathode ray luminescent phosphors and phosphor luminescence radiation and so on.

2 photoluminescent phosphors

“photo luminescent phosphor”

Emitting excitation light can be an inorganic powder material. Excitation light can be ultraviolet, visible, near-infrared bands.

3 fluorescent high pressure mercury lamp phosphors “phosphor for high pressure mercury fluorescent lamp”

A phosphor coating in the high pressure mercury lamp luminescent phosphor, the phosphor coating of this pressure is mainly to improve the color of the fluorescent lamp, the red region of the radiation is more fully. Phosphors for high pressure lamps should have the following characteristics: has a high absorption and radiation efficiency in the range of high-pressure mercury discharge radiation; in the red region of the spectrum there is the dominant radiation; luminescence have better temperature characteristics . Currently there are europium-activated yttrium vanadate or vanadium, yttrium phosphate.

4 fluorescent low pressure mercury lamp phosphors “phosphor for low pressure mercury fluorescent lamp”

A low-pressure mercury fluorescent coating in the photoluminescence phosphor. Mercury can 254nm excitation line, an effective light radiation. Fluorescent phosphor is one of them.

5 fluorescent phosphor “phosphor for daylight fluorescent lamp”

Refers to the currently commonly used halogen lamp manufacture calcium phosphate phosphor. Its matrix is ​​called chlorofluorocarbons apatite. Incorporation of small amounts of activator antimony (Sb) and manganese (Mn), after calcination to prepare a photoluminescent phosphor.

6 tricolor lamp phosphors “phosphor for three-primary colour fluorescent lamp”

Preparation of photoluminescent phosphors are three primary colors of light used. The three phosphors having red, green, and blue luminescent colors, made by mixing, coating the slurry on an inner wall made of the low-pressure mercury fluorescent tube. The prepared trichromatic fluorescent lamps compared with the normal fluorescent; has the following characteristics: high brightness, node, and the color temperature can be adjusted over a wide range; has a higher display index; light a small decline; good thermal stability, long life. Common trichromatic lamp

7 color lamp phosphors “phosphor for colour fluorescent lamp”

Is used to produce fluorescent and neon colored some of photoluminescent phosphors. They have different colors under excitation of ultraviolet light emission.

8 Medical lamp phosphors “phosphor for medical lamp”

For the production of medical lamps cast some of photoluminescent phosphors brain Inv. They are excited by 254nm ultraviolet light, can produce 310 ~ 330nm radiation. Common medical lamp phosphors such as calcium phosphate: thallium.

9 blacklight phosphor “phosphor for black light lamp”

Black light used to make some of photoluminescent phosphors. They are excited by 254nm ultraviolet light, radiation can produce about 360mn.

10 Copy lamp phosphors “phosphor for copying”

Phosphors for fluorescent lamps on the copy. Diazo copying fluorescent mainly used strontium pyrophosphate: Eu (bivalent), strontium magnesium pyrophosphate: Eu (bivalent). Fluorescent lamps are mainly used xerographic zinc silicate: Mn, Mg gallate: Mn phosphor, etc.. The emission spectra of these phosphors to match the curve of the photosensitive photoreceptor.

11 upconversion phosphors “up-conversion phosphor”

Emitting phosphor excitation photon energy larger than the photon energy. Depending on the components of the matrix can be divided into three categories: the rare earth fluorides, rare earth oxyhalide, the rare earth oxide or a composite oxide.

12 UV phosphor “ultraviolet emission phosphor”

Short-wave UV excitation generated by long-wave ultraviolet radiation phosphor. Health lamp such as magnesium zinc phosphate: thallium barium silicate or heavy: lead.

13 electroluminescent phosphor “electro luminescent phosphor”

In AC or DC electric field, relying on the excitation current to produce electric or inorganic powder materials glowing. Used in the manufacture electroluminescent display.

14 AC electroluminescent phosphor <AC electroluminescent phosphor>

In AC electric field, mainly rely on excitation-emission electric field of inorganic powder materials. Such as ZnS: Cu (green).

15 DC electroluminescent phosphor “D. C. electroluminescent phosphor ”

In DC or AC electric field, inorganic powder materials mainly depend on the current excitation luminescence. Such as ZnS: Mn, Cu (orange).

16 cathode-ray luminescent phosphor “cathodoluminescent phosphor”

A cathode ray (electron beam) irradiation, an inorganic powder material capable of emitting light. Widely used to produce various types of electron beam display, the screen of the developing device.

17 black and white television phosphors “phosphor for black-white television”

For the production of monochrome television cathode ray tube electroluminescent phosphors currently used is a blend of two of the sulfide phosphor. One is a blue ZnS: Ag; the other is the yellow cadmium zinc sulfide: silver or cadmium zinc sulfide: copper, aluminum.

18 color TV phosphors “phosphor for colour television”

Used to produce a color television cathode ray tube electroluminescent phosphor is composed of red, green, and blue colors of different luminescent materials. The red phosphor used is sulfur zinc oxide: europium oxide or yttrium: europium; green phosphor is ZnS: Cu, Al or ZnS: gold, copper, aluminum: blue phosphor is ZnS: Ag.

19 projection TV with a phosphor “phosphor for projective television”

Used to make the projection television cathode ray tube electroluminescent phosphor. Since the projection screen television display tube of high brightness requirements, and therefore that the phosphors have a high light output, good thermal stability and resistance characteristics of bombardment. Early projection TV uses black and white phosphor silicate material, the main use of sulfur oxide, yttrium: terbium, color projection television phosphors: red for yttrium oxide: Eu; blue ZnS: Ag; green zinc silicate: Mn or some terbium activated rare earth compounds.

20 flying spot scanner works phosphor “phosphor for flying spot scanning tube”

Used to make flying spot scanner tube short afterglow phosphor. Commonly used yttrium aluminate: cerium, yttrium silicate: cerium, yttrium aluminum gallium: cerium and calcium magnesium silicate: cerium.

21 CRT phosphors “phosphor for oscillograph”

Used to produce a variety of CRT cathode ray luminescent phosphor. Commonly used are: zinc silicate: Mn; ZnS: Cu; zinc magnesium fluoride: manganese; zinc cadmium sulfide: silver; magnesium fluoride: manganese; ZnS: lead, copper, and zinc sulfide: silver and zinc cadmium sulfide: the combination of copper and the like.

22 shows the effective phosphor “phosphor for image display”

For the production of a cathode ray display tube of various electroluminescent phosphor. Commonly used are: zinc cadmium sulfide: silver; calcium: lead,

Zinc silicate; Manganese: manganese, arsenic, cadmium zinc sulfide: copper and zinc sulfide: a combination of copper: silver and zinc cadmium sulfide.

23 voltage transmission type phosphors “voltage penetration phosphor”

Color or luminescent afterglow time varies with changes in the electron beam acceleration voltage phosphors. Commonly used are mixed, onion-and single particle type categories.

24 current sensitive phosphors “current sensitive phosphor”

Luminous colors change with the excitation beam current density varies phosphor. A current common – and one ultra-linear brightness was current – brightness was sub-linear material mixture.

25 low-energy electrons phosphor “low energy electron phosphor”

Less than a few hundred electron volts energy electron beam excitation, which can produce a phosphor for luminescent brightness and spectral distribution requirements. Such as zinc oxide is used in low-voltage fluorescent digital tube: zinc.

26 very long afterglow phosphor “very long persistence phoshor”

Afterglow time (10%) greater than 1s cathode ray luminescent phosphor. Zinc fluoride as used in radar display: manganese.

27 long afterglow phosphor

“long persistence phosphor”

Afterglow time

(10%) as a cathode ray 100m s ~ ls electroluminescent phosphor. Magnesium fluoride, such as for radar display: manganese and potassium and magnesium fluoride: manganese.

28 afterglow phosphors “medium persistence phosphor”

Afterglow time (10%) of l ~ 100ms cathode ray luminescent phosphor. As for zinc silicate oscilloscope display: manganese and zinc sulfide: copper.

29 medium short-persistence phosphor “medium short persistence phosphor”

Afterglow time (10%) of 10μs ~ lms cathode ray luminescent phosphor. A color display tube as used in the ZnS: Ag, chloro (blue) phosphors and the like.

30 short-persistence phosphor “short persistence phosphor”

Afterglow time (10%) of 1 ~ 10μs cathode ray luminescent phosphor. Sulfide such as for the image pickup recording and oscilloscope display: silver, nickel and the like.

31 short afterglow phosphor “very short persistence phosphor”

Afterglow time (10%) less than 1μs cathode ray luminescent phosphor. Magnesium silicate used as flying spot scanning tube: cerium.

32 radiation luminescence phosphor “radio luminescent phosphor”

In the X-ray radiation (α, β, and Y-rays) and neutron rays can emit light under the excitation of the inorganic powder material. As for the X-ray observation of zinc cadmium sulfide: silver; for X-ray pictures of black calcium: Tungsten; barium fluoride: europium, lanthanum Ozone: terbium and zinc sulfide silver for tomorrow night display, promethium -147 , and ZnS: Cu argon.

33 X-ray intensifying screen phosphors “phosphor for X-ray intensifying screens”

Some substances in X-ray excitation, emits near-ultraviolet and visible light, such as fluorescent X-ray intensifying screen. Since the medical latex sheet is not very sensitive to X-ray, using an intensifying screen to enhance the sensitivity of the film, at a lower X-ray dose, the clearer the image shot. Such calcium tungstate phosphors have: tungsten, terbium activated rare earth oxides of sulfur, bromine terbium oxide and barium chloride: europium.