TWI341862B - - Google Patents

Description

1341862 IX. Description of the invention: [Technical field of the invention] The present invention relates to a semiconductor illumination technology y, a fluorescent powder for changing the wavelength of a solid-state light source, and a quantum output 7 of the method for preparing the same; 20. 85, the excitation spectrum band is expanded Fe fire is equal. [Prior Art]

Nowadays, due to the advancement of semiconductor technology, semiconductor lighting technology has been rapidly developed. Generally, a semiconductor light-emitting diode containing indium gallium nitride can emit neon blue light or violet light. Since 1965, although many studies and engineers all over the world have done a lot of research, this aspect only Japan's $Ming Jia Nakamura Shuichi can be called a realistic founder (please refer to S. Nakamura “The Blue laser diodes”, Berlin

Springer' 1997). ’ ’

In particular, the phosphor powder has a high-efficiency quantum dot that is light-emitting on "InGaN" during long-term operation, and can generate light and violet light, and can also produce bright light in the light-emitting diode. Blu-ray. Sakamoto and Soviet scientists used the Newton complementary color principle to independently develop nitric acid phosphors for light-emitting diodes (see A Berg, P Din LED. NY Pergamon press, 1975) and (B. A· A6paM〇B. AeTopcKoe CBH^TejibCTBo CCCP N635813, πρΗορΗτβτ 09. 12.1977). The cell displacement of the phosphor powder is 5 〇 _i 5 〇 nm. A light-emitting diode with an organic thin film layer is called a binary light-emitting composition (two primary colors) (please refer to ΗΠ. Coli^hh CBeTOflHo^w η Jia3epu N1, 2, 46, 2002) 〇 1998 such white light emitting diode U.S. Patent No. 5,998,925 issued to S. Shimizu, issued to the United States. This kind of light-emitting diode uses the name of Gu Gu Shi Quanshi (Υ3Α15〇ΐ2). A significant disadvantage of Ji Shaoshi Quan Shi Rongguang is that it is difficult to control the spectrum - the residual array is greater than 120 ns. In addition, ^41862 ΐ i industry public ® ® 彻 patent monopoly (four) good reading stone fluorescing in the - Ι Ι ϊΞ ϊΞ 利 提出 提出 提出 绍 绍 绍 权 权 权 权 营 绍 绍 绍 绍 绍 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 Completely ruled out the case (JS 2005/ 093431 patent application to the security). Solving similar patent issues, this is an example. Moon wood Fluorescent, stone remains some inherent shortcomings - ί = Shi Quanshi - but the afterglow is too long. In the case of Shun Shiquan, "the body is long and _ work, the material quality is not good, it is a flaw in the beauty. Hansui Yukoukou [invention content] = solve the above-mentioned shortcomings of the prior art, the flaw of the present invention, Fluorescent powder with wavelength change of IU body light source and its preparation method, S3 adds a luminescence to the composition of the rare earth shale stone to describe the shortcomings of the technology.

In order to achieve the above object, the present invention provides a H-aluminum garnet of #H 广钸1, which is characterized by the addition of yttrium, ytterbium, mirror and yttrium into the knives, and the chemical formula thereof is: (Yl- Xy^-pq GdxTbyYbzLUpCeq)3Al5〇l2 〇... The present invention provides a method for producing a fluorescent powder which can change the wavelength of a solid light source, and includes V(N〇3)3.6H2〇> Gd. (N〇3)3.6H2〇^ Tb(N〇3)3.6 2〇Yb

6Η,〇^ Lu(N〇3)3.6H2〇^ Ce(N〇3)3.6H2〇I 1341862 into water (10)), and mix and stir; will get _ job = mixed with _1 〇 3; will be loaded The ingredients are placed at a specific pressure point, and - a specific high temperature zone; at a high pressure d 1 ', the water temperature is greater than - the first - specific temperature Ή; and (4) is carried out at the same time: - at a second specific temperature Τ 2 When the obtained particles are carried out: [Embodiment]

First, the object of the present invention is to eliminate the defects of the cerium-doped rare earth lanthanite fluorite powder. In order to achieve this goal, the present invention can change the wavelength of the light source to be based on the erbium-doped stone weight, and add elements such as lanthanum, cerium, bell and lanthanum to its composition. The chemical formula is: Y^mGdxTbyYb丄UpCeOsAhO, 2, wherein the chemical index changes as follows: x-0. 05~0. 9, y=0. 〇〇1 〜〇. 3, ζ=0· 01~2, p=〇. 〇卜〇·2 and q-0. 0001~0. 2 ' and the optimum content of the dopant ,, the range is: 〇« 〇7$Ce/(Gd+Tb+Yb+Lu) $〇, 20 .

Third, the elemental mirrors (Yb), yttrium (Gd), and yttrium (Lu) form a base - instead of a single basic element, for example, tantalum in yttrium aluminum garnet or tantalum in yttrium aluminum garnet. In the matrix _ replenishing 铽 (Tb) and bell (Yb), these two elements will have an effect similar to the sensitizer on the cesium ion (Ce+3) which acts as the main radiation, as will be discussed later. of. Wind/Currently, some basic academic ideas regarding the phosphor powder proposed by the present invention are briefly explained. In the aluminum garnet, a uniform electrostatic field is established around the C-ion with a coordination number of the ion. The substitution of the Gd+3 ion or Tb+3 from the f moiety can only non-essentially change the static electric field uniformity around the Ce+3 ion. In the phosphor powder lattice component, Lu+3 ion is added, and its sub-t彳 ratio is 15~10% smaller than the corresponding 钇 and 铽 ionic radii. At this time, the electric field balance has a strong change. In the present invention, after adding the ore, yttrium, 7 1341862 钂 plasma, for the lattice of the yttrium aluminum garnet, its electronic transition enthalpy is reduced by 3 from a=l2·01 to u.w angstrom (magic, close to intensification) The elemental ion, Lu ion and Yb+3 ions essentially enhance the static electricity in the crystal lattice, and the Ce ion-based luminescence is significantly improved. The phenomenon discovered by the present invention has been revealed on the surface, y ^Comparative phosphor powder and standard YAG and TAG materials in the spectrum comparison. Through the comparison of these tables can be concluded, L--31000 ^, early 'normal TAG phosphor powder L = 24000 units. It has been disclosed in Table 1, which illustrates the comparison between the present and the TAG materials in the spectrum. Through the = i, the intensity of the phosphor of the present invention is l = 3i_unit, and = 24000 units. The unique phosphor of the invented phosphor powder = the concentration ratio of the added Ce+3 ion and the supplemental addition of lanthanum and Lu in the stone core matrix: 0.09 s Ce / (4) view u % due to the incorporation of the phosphor powder C# ion concentration is better than lu 23: for example but not limited to (U02~0. _ atom "U is a low concentration of the sub, which is also the fire of the present invention ^叾^ is in the standard contact TAG, when the concentration value is characteristic. The surface absorption can be substantially increased. When: on the second hair, this result will make the color of the light powder deepen, this day ^2:=surface The short-wave and light-blue excitation powders are 455~475. In YAG:Ce, the length is Ο~470nm or 卟, with short-wave displacement, the length i is 440nm, but the excitation bandwidth does not increase. Still the level. In addition, the fluorescent powder of the present invention has a width of its excitation band which can be increased to. The genus of the ten cranes is 11 such a thin, the system; the 5® stone structure (four) has a property that is not well known. The ministry can be embodied in the material, which is characterized by the short-long target coaming λ-440~480 coffee of the (InGaN) heterojunction, and the long-wavelength of the long-wavelength λ lion ~595mn 'long wave displacement The concentration is 九^^(Gd+Ce) / (Y+Lu+Gd+Tb+Ce) 〇 Let the invention reinterpret the properties exhibited by the phosphor, where package ===large displacement, ^525 nm. Adding 次. 〇5 IL original knife rate, Ce ions will occur to the red spectral region 7~8 qing long wave position and., similar to large displacement The reason may be that the phosphor powder is added to the phosphor powder matrix. This type of fluorescent powder usually exhibits this property. With the short-wave photodetection, the (4) afterglow of the powder will decrease with the concentration. 0.005 $ (Ce+Yb) / (Y+Lu+Gd+Tb+Ce) $〇.丨 from r =120~60ns. Apply to ^2 luminescent composition (two primary colors) luminescent diode The sweetness of Lu's Yujun is especially important. The shorter the duration of Yuzen, the more the excitation power used in the light-emitting diode can be used in the light-emitting diodes. 'We use numbers to illustrate this problem. When T=12〇ns, the light output of the light-emitting diode is increased by 6 times, and the power is increased by 1G times. When the residual bomb is reduced to T=60ns, the light output is increased by 1〇 times and equal to the electric power of the LED. The amount of growth. A similar control of the radiant power of the illuminating diode, the advantages of the composition of the luminescent powder proposed by the present invention, will be explained again below. All of the characteristics of this X-ray phosphor are disclosed in Table 1 below, and the age of the 1341862 phosphor (2). The calculus counts the number of U long Λ, (4). Color coordinates x, y (5) The luminous brightness value of the light powder has a residual value. W The mother farm can easily be judged from Table 1, and each of the elements of the $ material affects its properties in essence. This is to use Han wave with different wavelengths. When the composition of G (f3 ion 氏 ^ ΐϋ 515$53:»5 ηηη yellow-green spectral region illuminates. When the amount of turbulence increases, m ' spectral shift to Η, 590 (10) orange yellow area. In the composition, the change of the cerium content changes the short-wavelength region of the excitation pupil. In the phosphor powder composition, the content of strontium is changed to i ϋίί and the phase luminescence * ° Mirror ions can produce significant increase in the content of the shadow material. The continuous closing is shortened rapidly, and the value of this parameter changes from τ = trace 6Gns.

No image phosphor composition (2) X yz P 1 (Vl xyz PQ, Gdx, Tb>) Yh^ LUp, Ce, V, A|(n 0. 05 0.001 0.000) ----- 0.01 ----- -** I sUi2 2 (Vi-, GdxTbyYb, LUcC Cq)3 AL〇i2 0. 1 0.1 0. 001 f —' 0. 1 -1~^__ 3 (Y丨..."Gd'Tb grab Lio: Cq)3 A"〇l2 0.3 0.] 0.001 0. 15 0.005 0.006 0.006 Wavelength (nm)(4) 525 535 560 Color coordinates (5) Relative brightness 0.3 0.4 30000 Afterglow (ns) ~ Π0 0.3 0.4 0.4 Μ 31500 32200 75 10 1^ 41862 Π CYr xy t. p qGdsTbyYbzLupC e〇)3 AI5O12 (YI -χ-yip-qGdxTby YbzLupC 6q)3 ΛΙ5Ο12 (Yl-x yz D qGdxTbyYbrLUpC e〇)'i AI5O12 (Vi ^-y zp-qGd.%TbyYbiLupC &)3 AI5O12 (Yl-.\ yzp-qGdxTbyYbzLlipC C<;)3 A 1 ΰ〇12 (Vi X-) i p-fiGdxTbyYbzLui»C eq)3 A lrj〇12 V^AlsOia : Cc

Tb3AhOi2; Ce 0.7 0.9 0.2 0.2 0.2 0.2 0.01 0.01 0.05 0-005 0.05 0. 001 0.001 0.001 0.001 0.05 0.001 0.2 0.01 0.05 0.05 0.05 ).006 0.004 0.005 0.02 0.01 0.008 570 590 555 556 557 558 560 549 0.4 9 ——. 0.4 45 〇. 5 0.4 6 ---- 0.4 7 ——. 0.4 2 ～ 0.3 0.4 0.4 0.5 0. 0.! 25^ 0.5 1 0. 0.4 30500 26500 33500 29800 31000 32800 29000 24500 75 72 72 72 74 128 112 coordinates on ί=2? Strict change 'is also in color „0.4二:=听. At the same time' coordinates Cd ^ ? M〇〇〇^2000 ^. The firefly J = in the light color seat, skillful, .z 〇, 〇μ〇· 2 ' Ρ=〇· 〇卜〇. 2 and cpO. 000 〇. 2. With $ _ ii also revealed - a kind of glory that can change the wavelength of solid light source, 71 method. As shown in the figure, the method for fabricating a fluorescent powder having a solid light source wavelength of 1341862 includes the following steps: first measuring Y(N〇3)r6H2〇, Gd(_3.6H2〇, Tb(N〇) 3) 3.6H2〇, Yb(N〇3)3·

a mixture of 6H2〇, Lu(N〇3)r6H2〇 and Ce(N〇3)r6H2〇; (Step 1) • Add concentrated ammonia () and mix and stir; (Step 2); The material is washed with water and mixed with Al (〇H) 3 (step 3); the i# net containing the ingredients is placed in a south temperature furnace and controlled at a specific pressure fraction and a special area (step 4) Loading a load on the south press pin so that the water temperature is greater than a first specific temperature T1 (step 5); and screening at a suitable time with a mesh screen to dry the obtained particles at a second specific temperature T2 ( In the step 1, the amount of Y(N〇3)3.6H2〇 is, for example but not limited to, 0·693 Moer' Gd(N〇3)r6H2〇, for example, but not limited to, 〇1mol, Tb (The amount of N〇3V6H2〇 is, for example but not limited to, 〇.丨莫耳, the amount of Yb (_3:_, for example, but not limited to, 0.001 m, Lu (N〇3) 3.6, such as but not 006摩尔。 An amount of 0. 1 摩尔 and Ce (N 〇 3) r 6 out of 0, for example, but not limited to, 0. 006 Mo.

In step 2, the concentration of the concentrated ammonia water is, for example but not limited to, π%. In step 3, the purity of the Al(OH)3 is, for example but not limited to, 99. 99%, and the amount is, for example but not limited to, 1.67 moles. In step 4, the specific temperature fraction is, for example but not limited to, h2.n2 = 0.05: 0.95. The temperature of the specific high temperature zone is, for example but not limited to, greater than that in step 5, the specific temperature T1 is, for example but not Limited to. In step 6, the mesh screen is, for example but not limited to, a plastic mesh, and the appetite time is 4 hours, and the second specific temperature T2 is 12 〇t. The fluorescent powder parameter measurement of the present invention is carried out in a "Sensing" spectrophotometer to perform a spectral colorimetric identification diagram (please refer to the attachments, 2, and 12 1341862 = the scattered component diagram of the light powder carving in parallel on the shooting device, For = specific ingredients (丫..69 said. + claws. For.. Lushan. "〇()6) 3 八15〇12, bean dispersibility is: ^/7 di〇=0. 9//m ds 〇=4. 2//m d9〇=9. 8//m S=36000 cm2/cm3. The f-conductor heterojunction emits light uniformly in all directions at 2Θ=27Γ radians. In optical technology, this is usually too restrictive. This uses various optical methods, including: a spherical mirror of: =0. The spherical mirror is filled with a light-transmissive acid J. According to the invention, a semiconductor source can be fabricated, which consists of three miInGaN heterojunctions. The heterojunction includes a hybrid circuit, which has a T, , ':, firm V = 7V 'total current KA. When the light source is powered, 2Θ2〇3发, increase; ^_cd 'strict flux increases F. im, and light Output ▲ v on standard white chromaticity coordinates (IV).322 ' ^〇· 315. Similar white light sources can be widely used in miners and mountain miners, mountaineers i 扒t 宗上, the fluorescent light of the present invention which can change the wavelength of the solid light source is based on 4 钇 钇 石榴 garnet, and added money, preparation =, and shot low content, so that High quantum output ^ 二〇. 85, the excitation spectrum band is expanded, under the long-term work ~ first pass is F=360 lm, power is 胙7w, etc., improve the conventional _ light source of the filament and its manufacturing method Disadvantages. σ Although the present invention has been disclosed above in the preferred embodiment, it is not intended to be used in the spirit of the present invention, and may be used as a minor change. Therefore, the present invention is defined by the scope of the patent application. [FIG. 1 is a schematic view showing a solid state according to a preferred embodiment of the present invention. Schematic diagram of the method for manufacturing the phosphor powder with the change of the wavelength of the light source. 'Description of the main component symbols】 Step 1: First measure Y (intestine 3) 3. Prospect, Gd (N〇3) r6H2〇, Tb (N Mixture of 〇3V6H2〇, Yb (N〇3)3.6H2〇, Lu (N03)3.6H20 and Ce (10)3)3.6H20 Drying amount; Step 2: Add concentrated ammonia (NIL·) and mix and mix; Step 3 · Wash the obtained precipitate with water and mix with A1 (〇H) 3; Step 4: Mix the ingredients Placed in a high temperature furnace and controlled at a specific pressure fraction and a specific high temperature zone; Step 5: load the pressure cooker to make the water temperature greater than a first specific temperature T1; and step 6: use a mesh sieve to properly The screening of time, the obtained particles are dried at a second specific temperature T2. 14

Claims (1)

1341862 X. Patent application scope: 1. A method for preparing a phosphor powder for changing the wavelength of a solid-state light source, comprising the following steps: first measuring Υ(Ν〇3)3·6Η2〇, Gd(10)3)3._, Tb (N〇3>._, Yb (N〇3) 3.6H2〇, Lu (N〇3) 3.6H2〇 and Ce (_3._ mixture if thousands; add concentrated ammonia (NH3), and mix Drop the water to be cleaned and cleaned before (4); place the hanging net containing the ingredients in a high temperature furnace and a specific pressure fraction and a specific high temperature zone; load on the high pressure pin to make the water temperature greater than - the first specific temperature T1; and screening with a mesh screen for an appropriate time, and performing the dry test on the obtained test. 弟-特度度 h 2. As in the patent application scope 1 (straight ship V6M) The amount is 〇93mol, Gd(10)~^^中& H(四), if Moer is called, the shore of the water is 1 reward, the material is concentrated, and the concentrated ammonia 4 is as described in the third paragraph of the patent application scope (1) The purity of 0耵3 is 99.99°/., and the amount is 1.67Mo |. The method of 乍, wherein the side is 5. As described in the first item of the patent scope ^ a®^^^H2:N2=0.05:0.95 ^ 14〇〇 〇荷疋阿温The method of claim 1, wherein the first method of the invention is the method of the first aspect of the invention, wherein the method of claim 1 is The plastic mesh screen has a suitable time of 4 hours and the second specific temperature T2 is 120 °C. 16