CN112795382B - 一种锰掺杂微球形荧光粉及其制备方法 - Google Patents
一种锰掺杂微球形荧光粉及其制备方法 Download PDFInfo
- Publication number
- CN112795382B CN112795382B CN202110012349.7A CN202110012349A CN112795382B CN 112795382 B CN112795382 B CN 112795382B CN 202110012349 A CN202110012349 A CN 202110012349A CN 112795382 B CN112795382 B CN 112795382B
- Authority
- CN
- China
- Prior art keywords
- fluorescent powder
- solution
- hours
- stirring
- microspherical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000843 powder Substances 0.000 title claims abstract description 48
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- 239000002243 precursor Substances 0.000 claims abstract description 17
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims abstract description 16
- 229910021380 Manganese Chloride Inorganic materials 0.000 claims abstract description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000011565 manganese chloride Substances 0.000 claims abstract description 10
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 10
- 239000001301 oxygen Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000000126 substance Substances 0.000 claims abstract description 5
- 239000000243 solution Substances 0.000 claims description 30
- 238000003756 stirring Methods 0.000 claims description 28
- 239000011259 mixed solution Substances 0.000 claims description 25
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 24
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 10
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 8
- 230000001590 oxidative effect Effects 0.000 claims description 8
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 7
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 7
- 239000008367 deionised water Substances 0.000 claims description 7
- 229910021641 deionized water Inorganic materials 0.000 claims description 7
- 238000005303 weighing Methods 0.000 claims description 7
- 238000004321 preservation Methods 0.000 claims description 3
- 238000010981 drying operation Methods 0.000 claims description 2
- 239000011572 manganese Substances 0.000 abstract description 13
- 238000005286 illumination Methods 0.000 abstract description 9
- 238000003980 solgel method Methods 0.000 abstract description 6
- 239000004005 microsphere Substances 0.000 abstract description 4
- YBMRDBCBODYGJE-UHFFFAOYSA-N germanium oxide Inorganic materials O=[Ge]=O YBMRDBCBODYGJE-UHFFFAOYSA-N 0.000 abstract description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 abstract description 2
- 239000001110 calcium chloride Substances 0.000 abstract description 2
- 229910001628 calcium chloride Inorganic materials 0.000 abstract description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 abstract 1
- 229910009523 YCl3 Inorganic materials 0.000 abstract 1
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 229910052748 manganese Inorganic materials 0.000 abstract 1
- PCMOZDDGXKIOLL-UHFFFAOYSA-K yttrium chloride Chemical compound [Cl-].[Cl-].[Cl-].[Y+3] PCMOZDDGXKIOLL-UHFFFAOYSA-K 0.000 abstract 1
- 238000000295 emission spectrum Methods 0.000 description 10
- 238000000695 excitation spectrum Methods 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- 238000002189 fluorescence spectrum Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 230000005284 excitation Effects 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 150000004645 aluminates Chemical class 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- MCSXGCZMEPXKIW-UHFFFAOYSA-N 3-hydroxy-4-[(4-methyl-2-nitrophenyl)diazenyl]-N-(3-nitrophenyl)naphthalene-2-carboxamide Chemical compound Cc1ccc(N=Nc2c(O)c(cc3ccccc23)C(=O)Nc2cccc(c2)[N+]([O-])=O)c(c1)[N+]([O-])=O MCSXGCZMEPXKIW-UHFFFAOYSA-N 0.000 description 1
- WAEMQWOKJMHJLA-UHFFFAOYSA-N Manganese(2+) Chemical compound [Mn+2] WAEMQWOKJMHJLA-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000003760 magnetic stirring Methods 0.000 description 1
- 229910001437 manganese ion Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000010532 solid phase synthesis reaction Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 229910019901 yttrium aluminum garnet Inorganic materials 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7707—Germanates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/50—Wavelength conversion elements
- H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
- H01L33/502—Wavelength conversion materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
- H01L2933/0008—Processes
- H01L2933/0033—Processes relating to semiconductor body packages
- H01L2933/0041—Processes relating to semiconductor body packages relating to wavelength conversion elements
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Luminescent Compositions (AREA)
Abstract
本发明公开一种四价锰掺杂微球形荧光粉及其制备方法,该荧光粉的化学式为Ca1‑ xYxAl12‑y‑zGeyO19+x/2+y/2+z/2:zMn4+,x=0~1,y=0~1.2,z=0~0.12;得到的荧光粉是微球形结构,其中,Ca1‑xYxAl12‑y‑zGeyO19+x/2+y/2+z/2:zMn4+以CaCl2、YCl3·6H2O、AlCl3·6H2O、GeO2、氨水、MnCl2为原料,在合适的水醇比下,采用环氧丙烷驱动的溶胶‑凝胶法制备得到前驱体微球,经后续氧气气氛高温热处理制得红色Ca1‑xYxAl12‑y‑ zGeyO19+x/2+y/2+z/2:zMn4+荧光微球。所发明的球形荧光粉形貌规整、单分散性好、发光性能优异,可以配合紫外LED芯片和绿色、蓝色荧光粉应用于白光LED照明。
Description
技术领域
本发明涉及一种过渡金属元素掺杂的铝酸盐荧光粉及其制备方法,即一种Ca1- xYxAl12-y-zGeyO19+x/2+y/2+z/2:zMn4+,x=0~1,y=0~1.2,z=0~0.12微球形荧光粉及其制备方法。
背景技术
四价锰离子(Mn4+)掺杂的红色发光铝酸盐荧光粉由于发射谱有明显的窄带特征,在LED照明和显示领域应用广泛。这种荧光粉大多数采用传统的高温固相法来制备,但是,这种方法有明显的弊端:一是制备过程需要很高的烧结温度和长时间的热处理,烧结能耗高;二是产物得到的粗大颗粒或者密实的块体,需要经过球磨粉碎才能获得微米尺寸的颗粒,易引入杂质,最终产物形状不规则,粒径分布宽。采用环氧丙烷驱动的快速溶胶-凝胶的方法获得的荧光粉具有球形形貌规则、单分散性好、易于实现过渡金属元素均匀分布的优点。因此,可以采用环氧丙烷驱动的快速溶胶-凝胶的方法来克服上述高温固相法的缺点。
影响Mn4+掺杂荧光粉的因素主要有配位环境化学键的共价性、格位的电荷是否平衡、格位的晶体学对称性等。配位环境的共价性越强,Mn4+红光发射波长越长,接近深红色;反之,离子性越强的环境Mn4+发射波长越短,在人眼能感受到的红光范围。格位电荷要尽量平衡,从而抑制间隙氧的产生,减小浓度猝灭,增强量子效率。Mn4+所在格位的晶体学对称性被破坏后,八面体配位产生拉长或压缩等晶格畸变,引入奇对称场,Mn4+跃迁禁阻被打破,吸收增加,实现发光增强。
发明内容
本发明的目的是提供一种能应用于半导体照明的红光发光效率高、具有微球形貌的锰掺杂微球形荧光粉及其制备方法。
本发明的目的是通过如下技术方案实现的:
一种锰掺杂微球形荧光粉,所述荧光粉的化学式为Ca1-xYxAl12-y-zGeyO19+x/2+y/2+z/2:zMn4+,其中:x=0~1,y=0~1.2,z=0~0.12;所述荧光粉为微球形结构,其尺度为1~3μm。其中,优选地,x=0~1,y=0.24~1.2。更优选地,x=0.25~0.75,y=0.48~0.96。
一种所述锰掺杂微球形荧光粉的制备方法,包括以下步骤:
(1)取0~0.3g GeO2和3~5ml氨水于烧杯中,60~80℃加热、磁力搅拌4~6h,配成溶液A;称取5~6g AlCl3·6H2O、0~0.4gYCl3·6H2O、0.05g~0.2gCaCl2、0.0006g MnCl2于烧杯中,加入3~4mL去离子水,7~8mL无水乙醇,磁力搅拌3~5h,配成溶液B。将溶液B完全转移至溶液A中形成混合溶液。
(2)在混合溶液或者直接在溶液B加入0~1g柠檬酸、2~3mL甲酰胺,获得混合溶液。将获得的混合溶液在25~35℃下进行搅拌,在搅拌过程中中注入12~15mL的环氧丙烷(PO),搅拌1~2分钟,停止搅拌后静置5~7分钟,得到乳白色凝胶,干燥。
(3)将步骤2制得的前驱体平铺于氧化铝烧舟中,随后置于管式炉中升温至1100~1400℃,在氧气氧化性气氛中保温热处理4~6小时;待热处理程序结束后,随炉冷却,取出产物,得到微球形Ca1-xYxAl12-y-zGeyO19+x/2+y/2+z/2:zMn4+荧光粉。
进一步地,所述步骤2中,干燥操作具体为:将得到的乳白色凝胶置于培养皿中于70~90℃条件下干燥10~15小时,得到非晶态前驱体。
与现有技术相比,本发明的有益效果是:Ca1-xYxAl12-y-zGeyO19+x/2+y/2+z/2:zMn4+荧光粉能够吸收紫外光峰值波长在340nm附近,发射光谱波长位于660nm,为红光;采用环氧丙烷驱动的溶胶-凝胶法制备工艺简单、无污染、成本低;制备得到的荧光微球其粒径在1~3μm,粒径均匀,形貌规则;球形颗粒的荧光粉具有高亮度、高封装密度、高分辨率、低散射性的特点。
附图说明
图1是实施例1的Mn4+掺杂的CaAl12O19红色荧光粉的SEM照片,球形荧光粉形貌规整、单分散性好;
图2是实施例1的Mn4+掺杂的CaAl12O19红色荧光粉的荧光光谱,图左侧为激发光谱,中心波长为340nm,右侧为发射光谱,中心波长为655nm;
图3是实施例2的Mn4+掺杂的Ca0.75Y0.25Al11.5176Ge0.48O19.3662红色荧光粉的XRD图谱;
图4是实施例2的Mn4+掺杂的Ca0.75Y0.25Al11.5176Ge0.48O19.3662红色荧光粉的光谱图,左侧为激发光谱,中心波长为340nm,右侧为发射光谱,中心波长为660nm左右。
具体实施方式
本发明提供了一种锰掺杂微球形荧光粉,所述荧光粉的尺度为1~3μm,所述荧光粉的化学式为Ca1-xYxAl12-y-zGeyO19+x/2+y/2+z/2:zMn4+,其中:x=0~1,y=0~1.2,z=0.012~0.12。其中,优选,x=0~1,y=0.24~1.2。通过利用Ge4+与Mn4+的价态相同、离子半径相近,因此Mn4+进入的八面体格位不会产生电荷不平衡,故引入Ge4+来调控Mn4+发射波长,同时抑制相邻Mn4+离子之间的能量传递,降低无辐射跃迁;掺入Y3+的作用是破坏晶格对称性,增强零声子线强度,增强发光。同时CaAl12O19、GeO2、Y3Al5O12都可由快速溶胶凝胶法制备,因此,本发明首次尝试采用快速溶胶凝胶法制备三者的固溶相Ca1-xYxAl12-y-zGeyO19+x/2+y/2+z/2:zMn4 +。下面,结合具体实施方式对本发明作进一步说明。
实施例1
(1)称取5.7943g AlCl3·6H2O、0.2220g CaCl2、0.0006g MnCl2置于50ml烧杯中,加入2.6mL表面活性剂甲酰胺(FA)、5.4mL去离子水及7.7mL无水乙醇,获得混合溶液;
(2)保持混合溶液在25℃下持续进行磁力搅拌(400转每分钟),待AlCl3·6H2O、CaCl2、MnCl2完全水解后,向混合溶液中迅速注入14mL的环氧丙烷(PO)来驱动凝胶反应。保持快速搅拌2分钟,待PO分散均匀,停止搅拌。静置5分钟后得到乳白色凝胶;
(3)将制得的凝胶置于培养皿中于80℃烘箱中干燥12小时,得到非晶态前驱体;
(4)将制得的前驱体平铺于氧化铝烧舟中,随后置于管式炉中升温至1300℃,在氧气氧化性气氛中热处理4小时;待热处理程序结束后,随炉冷却,取出产物,得到CaAl11.9976O19.0012:0.0024Mn4+荧光粉。
对制备得到的荧光粉进行测试:图1为该荧光粉样品的扫描电镜照片,从图中可以看到,该荧光粉具有球形形貌,其粒径在1~3μm左右,粒径均匀,分散性良好。图2所示为本例所制得的荧光粉的荧光光谱图,在655nm监控的激发光谱和340nm激发下的发射光谱,由图可知Mn4+具有在红光波段(640~680nm)的窄发射带,发射的中心波长为655nm。因此,本发明实施例的CaAl11.9976O19.0012:0.0024Mn4+荧光粉可以配合紫外LED芯片应用于LED照明。
实施例2
(1)取0.1005g GeO2和3ml氨水于烧杯中,80℃加热、磁力搅拌4h,配成溶液A;称取5.5603g AlCl3·6H2O、0.1517gYCl3·6H2O、0.1665gCaCl2、0.0006g MnCl2于烧杯中,加入3.4mL去离子水,7.7mL无水乙醇,磁力搅拌4h,配成溶液B。
(2)将溶液B完全转移至溶液A中,加入0.3689g柠檬酸、2.6mL甲酰胺,获得混合溶液。将获得的混合溶液在25℃下进行搅拌,向混合溶液中注入14mL的环氧丙烷(PO),搅拌2分钟,停止搅拌后静置5分钟,得到乳白色凝胶。
(3)将步骤2得到的乳白色凝胶置于培养皿中于80℃条件下干燥12小时,得到非晶态前驱体。
(4)将步骤3制得的前驱体平铺于氧化铝烧舟中,随后置于管式炉中升温至1300℃,在氧气氧化性气氛中保温热处理4小时;待热处理程序结束后,随炉冷却,取出产物,得到微球形Ca0.75Y0.25Al11.5176Ge0.48O19.3662:0.0024Mn4+荧光粉。
对制备得到的荧光粉进行测试:图3是制得的Mn4+掺杂的Ca0.75Y0.25Al11.5176Ge0.4 8O19.3662红色荧光粉的XRD图谱,可以看出该荧光粉结晶度较好,CaAl12O19的特征峰明显,不存在第二相,表明掺杂有效;图4是在荧光光谱图,660nm监控的激发光谱和340nm激发下的发射光谱,由图可知Mn4+具有在红光波段(640~680nm)的窄发射带,发射的中心波长为660nm,峰位红移且由于Y3+的掺杂发射强度较图2有所增加。因此,本发明实施例的Ca0.7 5Y0.25Al11.5176Ge0.48O19.3662:0.0024Mn4+荧光粉可以配合紫外LED芯片应用于LED照明。
实施例3
(1)取0.1005g GeO2和3ml氨水于烧杯中,80℃加热、磁力搅拌4h,配成溶液A;称取5.5603g AlCl3·6H2O、0.3034gYCl3·6H2O、0.1110g CaCl2、0.0006g MnCl2于烧杯中,加入3.4mL去离子水,7.7mL无水乙醇,磁力搅拌4h,配成溶液B。
(2)将溶液B完全转移至溶液A中,加入0.3689g柠檬酸、2.6mL甲酰胺,获得混合溶液。将获得的混合溶液在25℃下进行搅拌,向混合溶液中注入14mL的环氧丙烷(PO)。保持快速搅拌2分钟,待PO分散均匀,停止搅拌。静置5分钟后得到乳白色凝胶;
(3)将制得的凝胶置于培养皿中于80℃烘箱中干燥12小时,得到非晶态前驱体;
(4)将制得的前驱体平铺于氧化铝烧舟中,随后置于管式炉中升温至1300℃,在氧气氧化性气氛中热处理4小时;待热处理程序结束后,随炉冷却,取出产物,得到Ca0.5Y0.5Al11.5176Ge0.48O19.4912:0.0024Mn4+荧光粉。
对制备得到的荧光粉进行测试:在荧光光谱图,665nm监控的激发光谱和340nm激发下的发射光谱,由图可知Mn4+具有在红光波段(640~680nm)的窄发射带,发射的中心波长为665nm。因此,本发明实施例的Ca0.5Y0.5Al11.5176Ge0.48O19.4912:0.0024Mn4+荧光粉可以配合紫外LED芯片应用于LED照明。
实施例4
(1)取0.1005g GeO2和3ml氨水于烧杯中,80℃加热、磁力搅拌4h,配成溶液A;称取5.5603g AlCl3·6H2O、0.4550gYCl3·6H2O、0.0555g CaCl2、0.0006g MnCl2于烧杯中,加入3.4mL去离子水,7.7mL无水乙醇,磁力搅拌4h,配成溶液B。
(2)将溶液B完全转移至溶液A中,加入0.3689g柠檬酸、2.6mL甲酰胺,获得混合溶液。将获得的混合溶液在25℃下进行搅拌,向混合溶液中注入14mL的环氧丙烷(PO)。保持快速搅拌2分钟,待PO分散均匀,停止搅拌。静置5分钟后得到乳白色凝胶;
(3)将制得的凝胶置于培养皿中于80℃烘箱中干燥12小时,得到非晶态前驱体;
(4)将制得的前驱体平铺于氧化铝烧舟中,随后置于管式炉中升温至1300℃,在氧气氧化性气氛中热处理4小时;待热处理程序结束后,随炉冷却,取出产物,得到Ca0.25Y0.75Al11.5176Ge0.48O19.6162:0.0024Mn4+荧光粉。
对制备得到的荧光粉进行测试:在荧光光谱图,670nm监控的激发光谱和340nm激发下的发射光谱,由图可知Mn4+具有在红光波段(640~680nm)的窄发射带,发射的中心波长为670nm。因此,本发明实施例的Ca0.25Y0.75Al11.5176Ge0.48O19.6162:0.0024Mn4+荧光粉可以配合紫外LED芯片应用于LED照明。
实施例5
(1)取0.1507g GeO2和3ml氨水于烧杯中,80℃加热、磁力搅拌4h,配成溶液A;称取5.4443g AlCl3·6H2O、0.3034gYCl3·6H2O、0.1110g CaCl2、0.0006g MnCl2于烧杯中,加入3.4mL去离子水,7.7mL无水乙醇,磁力搅拌4h,配成溶液B。
(2)将溶液B完全转移至溶液A中,加入0.5533g柠檬酸、2.6mL甲酰胺,获得混合溶液。将获得的混合溶液在25℃下进行搅拌,向混合溶液中注入14mL的环氧丙烷(PO)。保持快速搅拌2分钟,待PO分散均匀,停止搅拌。静置5分钟后得到乳白色凝胶;
(3)将制得的凝胶置于培养皿中于80℃烘箱中干燥12小时,得到非晶态前驱体;
(4)将制得的前驱体平铺于氧化铝烧舟中,随后置于管式炉中升温至1300℃,在氧气氧化性气氛中热处理4小时;待热处理程序结束后,随炉冷却,取出产物,得到Ca0.5Y0.5Al11.2776Ge0.72O19.6112:0.0024Mn4+荧光粉。
对制备得到的荧光粉进行测试:在荧光光谱图,655nm监控的激发光谱和340nm激发下的发射光谱,由图可知Mn4+具有在红光波段(640~680nm)的窄发射带,发射的中心波长为655nm。因此,本发明实施例的Ca0.5Y0.5Al11.2776Ge0.72O19.6112:0.0024Mn4+荧光粉可以配合紫外LED芯片应用于LED照明。
实施例6
(1)取0.2010g GeO2和3ml氨水于烧杯中,80℃加热、磁力搅拌4h,配成溶液A;称取5.3285g AlCl3·6H2O、0.3034gYCl3·6H2O、0.1110g CaCl2、0.0006g MnCl2于烧杯中,加入3.4mL去离子水,7.7mL无水乙醇,磁力搅拌4h,配成溶液B。
(2)将溶液B完全转移至溶液A中,加入0.7378g柠檬酸、2.6mL甲酰胺,获得混合溶液。将获得的混合溶液在25℃下进行搅拌,向混合溶液中注入14mL的环氧丙烷(PO)。保持快速搅拌2分钟,待PO分散均匀,停止搅拌。静置5分钟后得到乳白色凝胶;
(3)将制得的凝胶置于培养皿中于80℃烘箱中干燥12小时,得到非晶态前驱体;
(4)将制得的前驱体平铺于氧化铝烧舟中,随后置于管式炉中升温至1300℃,在氧气氧化性气氛中热处理4小时;待热处理程序结束后,随炉冷却,取出产物,得到Ca0.5Y0.5Al11.0376Ge0.96O19.7312:0.0024Mn4+荧光粉。
对制备得到的荧光粉进行测试:在荧光光谱图,650nm监控的激发光谱和340nm激发下的发射光谱,由图可知Mn4+具有在红光波段(640~680nm)的窄发射带,发射的中心波长为650nm。因此,本发明实施例的Ca0.5Y0.5Al11.0376Ge0.96O19.7312:0.0024Mn4+荧光粉可以配合紫外LED芯片应用于LED照明。
上述实施例用来解释说明本发明,而不是对本发明进行限制,在本发明的精神和权利要求的保护范围内,对本发明作出的任何修改和改变,都落入本发明的保护范围。
Claims (3)
1.一种锰掺杂微球形荧光粉,其特征在于,所述荧光粉的尺度为1~3μm,所述荧光粉的化学式为Ca1-xYxAl12-y-zGeyO19+x/2+y/2+z/2:zMn4+,其中:x=0.25~0.75,y=0.24~1.2,z=0.012~0.12。
2.一种如权利要求1所述锰掺杂微球形荧光粉的制备方法,其特征在于,包括以下步骤:
(1)取0~0.3g GeO2和3~5ml氨水,于60~80℃加热、磁力搅拌4~6h,配成溶液A;称取5~6g AlCl3·6H2O、0~0.4gYCl3·6H2O、0.05g~0.2gCaCl2、0.0006g MnCl2,然后加入3~4mL去离子水,7~8mL无水乙醇,磁力搅拌3~5h,配成溶液B;将溶液B完全转移至溶液A中形成混合溶液;
(2)在混合溶液或者直接在溶液B加入0~1g柠檬酸、2~3mL甲酰胺,然后在25~35℃下进行搅拌,在搅拌过程中注入12~15mL的环氧丙烷,继续搅拌1~2分钟,停止搅拌后静置5~7分钟,得到乳白色凝胶,干燥获得非晶态前驱体;
(3)将步骤(2)制得的前驱体平铺于氧化铝烧舟中,随后置于管式炉中升温至1100~1400℃,在氧气氧化性气氛中保温热处理4~6小时;待热处理程序结束后,随炉冷却,取出产物,得到微球形Ca1-xYxAl12-y-zGeyO19+x/2+y/2+z/2:zMn4+荧光粉。
3.根据权利要求2所述的制备方法,其特征在于,所述步骤(2)中,干燥操作具体为:将得到的乳白色凝胶于70~90℃条件下干燥10~15小时。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110012349.7A CN112795382B (zh) | 2021-01-06 | 2021-01-06 | 一种锰掺杂微球形荧光粉及其制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110012349.7A CN112795382B (zh) | 2021-01-06 | 2021-01-06 | 一种锰掺杂微球形荧光粉及其制备方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN112795382A CN112795382A (zh) | 2021-05-14 |
CN112795382B true CN112795382B (zh) | 2022-04-29 |
Family
ID=75808520
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202110012349.7A Active CN112795382B (zh) | 2021-01-06 | 2021-01-06 | 一种锰掺杂微球形荧光粉及其制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN112795382B (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114479859B (zh) * | 2022-01-05 | 2023-08-15 | 浙江大学 | 一种多色可调锗酸盐荧光玻璃陶瓷及其制备方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101705089A (zh) * | 2009-10-30 | 2010-05-12 | 彩虹集团公司 | 一种pdp用荧光材料及其制备方法 |
CN106536677A (zh) * | 2014-06-17 | 2017-03-22 | 欧司朗光电半导体有限公司 | 磷光体、包含磷光体的发光装置和制造磷光体的方法 |
CN111100635A (zh) * | 2019-12-26 | 2020-05-05 | 浙江大学 | 一种铕掺杂微球形荧光粉及其制备方法 |
-
2021
- 2021-01-06 CN CN202110012349.7A patent/CN112795382B/zh active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101705089A (zh) * | 2009-10-30 | 2010-05-12 | 彩虹集团公司 | 一种pdp用荧光材料及其制备方法 |
CN106536677A (zh) * | 2014-06-17 | 2017-03-22 | 欧司朗光电半导体有限公司 | 磷光体、包含磷光体的发光装置和制造磷光体的方法 |
CN111100635A (zh) * | 2019-12-26 | 2020-05-05 | 浙江大学 | 一种铕掺杂微球形荧光粉及其制备方法 |
Non-Patent Citations (2)
Title |
---|
Co-substitution in Ca1−xYxAl12−xMgxO19 phosphors: local structure evolution, photoluminescence tuning and application for plant growth LEDs;Yinjian Zheng,等;《J. Mater. Chem. C》;20180309;第6卷;4217-4224 * |
GeO2 dopant induced enhancement of red emission in CaAl12O19:Mn4+ phosphor;Wei Shu,等;《Materials Science and Engineering: B》;20120215;第177卷(第2期);274-277 * |
Also Published As
Publication number | Publication date |
---|---|
CN112795382A (zh) | 2021-05-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Guo et al. | Preparation and luminescent properties of phosphor MGd2 (MoO4) 4: Eu3+ (M= Ca, Sr and Ba) | |
Naik et al. | Low temperature synthesis and photoluminescence properties of red emitting Mg2SiO4: Eu3+ nanophosphor for near UV light emitting diodes | |
Zhang et al. | Citrate sol-gel combustion preparation and photoluminescence properties of YAG: Ce phosphors | |
Li et al. | A new whole family perovskites quantum dots (CsPbX3, X= Cl, Br, I) phosphate glasses with full spectral emissions | |
Zhang et al. | Effect of H3BO3 flux on the morphology and optical properties of Sr2MgAl22O36: Mn4+ red phosphors for agricultural light conversion films | |
Yongqing et al. | Properties of red-emitting phosphors Sr2MgSi2O7: Eu3+ prepared by gel-combustion method assisted by microwave | |
Zhou et al. | Engineering cation vacancies to improve the luminescence properties of Ca14Al10Zn6O35: Mn4+ phosphors for LED plant lamp | |
Zhang et al. | Synthesis, structure, and color-tunable luminescence properties of lanthanide activator ions doped bismuth silicate as single-phase white light emitting phosphors | |
Nagpure et al. | Combustion synthesis of Na2Sr (PO4) F: Dy3+ white light emitting phosphor | |
Yousif et al. | Comparison and analysis of Eu3+ luminescence in Y3Al5O12 and Y3Ga5O12 hosts material for red lighting phosphor | |
Wang et al. | Synthesis and photoluminescence of multicolor tunable K3Gd (VO4) 2: Eu3+ phosphors | |
Yang et al. | Novel red-emitting microwave-assisted-sintered LiSrPO 4: Eu 3+ phosphors for application in near-UV white light-emitting diodes | |
Han et al. | A novel Al3+ modified Li6CaLa2Sb2O12: Mn4+ far-red-emitting phosphor with garnet structure for plant cultivation | |
Yu et al. | Double-site Eu3+ occupation in the langbeinite-type phosphate phosphor toward adjustable emission for pc-WLEDs | |
CN101307228B (zh) | 氯铝硅酸盐荧光粉及其制备方法 | |
Zou et al. | Combustion synthesis and luminescence of monoclinic Gd2O3: Bi phosphors | |
Shen et al. | Red-emitting enhancement of Bi4Si3O12: Sm3+ phosphor by Pr3+ co-doping for White LEDs application | |
CN112795382B (zh) | 一种锰掺杂微球形荧光粉及其制备方法 | |
Wei et al. | Synthesis and Photoluminescence Properties of Eu 3+-Activated Double Perovskite Ba 2 YTaO 6 Red Phosphor | |
CN106190119A (zh) | 一种白光LED用Eu3+掺杂钼酸盐红粉的制备方法 | |
Jayasimhadri et al. | Conversion of green emission into white light in Gd2O3 nanophosphors | |
Jung et al. | Photoluminescence characteristics of red phosphor Eu3+, Sm3+ co-doped Y2O3 for white light emitting diodes | |
CN105315995B (zh) | 一种制备yag荧光粉的助熔剂及方法 | |
Sheoran et al. | Novel synthesis and Optical investigation of trivalent Europium doped MGd2Si3O10 (M= Mg2+, Ca2+, Sr2+ and Ba2+) nanophosphors for full-color displays | |
Yang et al. | Combustion synthesis of SrIn2O4: Eu3+ red-emitting phosphor for white light-emitting diodes |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |