CN101566556A - Method for testing aging characteristic of phosphor for 253.7-nanometer UV excitation lamp - Google Patents
Method for testing aging characteristic of phosphor for 253.7-nanometer UV excitation lamp Download PDFInfo
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- CN101566556A CN101566556A CN 200910022770 CN200910022770A CN101566556A CN 101566556 A CN101566556 A CN 101566556A CN 200910022770 CN200910022770 CN 200910022770 CN 200910022770 A CN200910022770 A CN 200910022770A CN 101566556 A CN101566556 A CN 101566556A
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Abstract
The invention relates to a method for testing the aging characteristic of a phosphor material, in particular to a method for testing the aging characteristic of a phosphor for a 253.7-nanometer UV excitation lamp. The method comprises the following steps: firstly, putting a phosphor sample to be tested and a reference sample in a groove of a glass base plate for bearing samples, and putting the glass base plate into a sample chamber; secondly, vacuumizing the sample chamber; thirdly, inflating 30 to 50 torrs of mixed inert gas of Ar-Ne into the sample chamber; fourthly, inflating mercury vapor into the sample chamber; fifthly, evenly coating a carbon powder sizing agent or a silver sizing agent at two ends of the sample chamber to form a carbon electrode or a silver electrode after drying, galvanizing high-frequency alternating current so that the mercury vapor in the sample chamber is ionized and emits 253.7-nanometer ultraviolet rays; and finally, using a phosphorescence intensity detector to record the luminous intensity of the phosphor after the excitation of the ultraviolet rays so as to obtain ageing data of the phosphor. The method has the advantages of convenient, simple and accurate test and wide range of application.
Description
One, technical field:
The present invention relates to a kind of ageing properties method of testing of phosphor material, be specifically related to a kind of 253.7nm burst of ultraviolel lamp phosphor aging performance test methods.
Two, background technology:
At present, be widely used in the phosphor material of making lamp and mainly contain (BaEu) MgAl
10O
17, (BaEu) (MgMn) Al
10O
17, (BaSrEu) MgAl
10O
17, (BaSrEu) (MgMn) Al
10O
17, (LaCeTb) PO
4, (CeTb) Al
11O
19, (Y, Eu)
2O
3In phosphor manufacturer, above phosphor kind is mainly carried out primary characteristics such as luminosity, luminescent chromaticity, specific surface area, loose specific weight, center granularity and distribution, thermal stability, the most important characteristic of phosphor itself---ageing properties is stimulated and ignored.If its ageing properties that is stimulated of the good phosphor product of primary characteristic is bad, such phosphor product can't use at all.
Simultaneously, develop rapidly along with Chinese energy-saving illumination cause, people improve day by day to the demand of lighting condition, original incandescent lighting can not have been satisfied national energy-conservation career development and the most of people demand to illuminating effect, thereby turns to more energy-conservation, the higher light efficiency of selection, better, the longer trichromatic energy saving lamp of life-span of illuminating effect; Moreover, along with the develop rapidly of liquid crystal display device, the cold-cathode fluorescence lamp that is used for the backlight illumination is had higher requirement, mainly show the useful life aspect.People are to the high demand of illuminating effect and display device display effect, and then illumination is required also to improve day by day with rare-earth trichromatic phosphor material and the backlight ageing resistance with the rare-earth trichromatic phosphor material.
Three, summary of the invention:
The invention provides a kind of 253.7nm burst of ultraviolel lamp method of testing, can make things convenient for, simply, test out the phosphor aging performance accurately with the phosphor aging characteristic.
For reaching above purpose, the present invention takes following technical scheme:
A kind of 253.7nm burst of ultraviolel lamp phosphor aging performance test methods comprises following operation steps
(1) be placed on equably in the glass film plates groove that carries sample with the phosphor sample with reference to sample, the glass sheet smooth with surfacing flattens it, and the glass film plates that will carry sample is then put into the sample chamber;
(2) will vacuumize in the sample chamber earlier, make the vacuum tightness of sample chamber reach 4.0 * 10
-4～4.0 * 10
-5Holder;
(3) then charging into volume ratio in the sample chamber is V
Ar: V
Ne=90～99: 10～1 mixed inert gas Ar-Ne30～50 holders;
(4) in the sample chamber, charge into mercuryvapour again;
(5) then the two ends of sample chamber are evenly applied toner slurry or silver paste, back to be dried forms carbon electrode or silver electrode, and logical high-frequency alternating current makes the mercuryvapour ionization in the sample chamber, emits the 253.7nm ultraviolet ray;
(6) utilize the phosphorescence intensity detection instrument to aim at tested article and at last with reference to sample, luminous intensity after the time recording phosphor is subjected to 253.7nm ultraviolet ray excited, be subjected to the luminous intensity data of 253.7nm ultraviolet ray irradiation different time according to phosphor, obtain sample and with reference to the phosphor aging data of sample, by the contrast sample with reference to the phosphor aging data of sample, estimate sample phosphor aging performance index again.
Described a kind of 253.7nm burst of ultraviolel lamp phosphor aging performance test methods comprises following operation steps
(1) selects phosphor sample and, go out to fill up the glass film plates groove of carrying sample with sample with reference to sample Yao, after flattening with the glass sheet of lubricous dry then, glass film plates is steadily put into the sample chamber with spoon with reference to sample; The one end sealing of sample chamber, the other end is connected by threeway glass and inflating and exhausting system, mercury frame; Described mercury frame contains mercury;
(2) by inflating and exhausting system, make the vacuum tightness in the sample chamber reach 4.0 * 10
-4～4.0 * 10
-5Close vacuum valve after the holder;
(3) by inflating and exhausting system, charging into volume ratio in the sample chamber is V
Ar: V
Ne=90～99: 10～1 mixed inert gas Ar-Ne30～50 holders closes charging valve;
(4) adopt heating generator that the mercury in the mercury frame is activated and produce mercury vapour, mercury vapour enters the sample chamber by threeway glass;
(5) then the two ends of sample chamber are evenly applied toner slurry or silver paste, back to be dried forms carbon electrode or silver electrode, and logical high-frequency alternating current makes the mercuryvapour ionization in the sample chamber, emits the 253.7nm ultraviolet ray;
(6) utilize the phosphorescence intensity detection instrument to aim at tested article and at last with reference to sample, luminous intensity after the time recording phosphor is subjected to 253.7nm ultraviolet ray excited, be subjected to the luminous intensity data of 253.7nm ultraviolet ray irradiation different time according to phosphor, obtain sample and with reference to the phosphor aging data of sample, by the contrast sample with reference to the phosphor aging data of sample, estimate sample phosphor aging performance index again.
Described phosphor material is (BaEu) MgAl
10O
17, (BaEu) (MgMn) Al
10O
17, (BaSrEu) MgAl
10O
17, (BaSrEu) (MgMn) Al
10O
17Blueness, blue-green, green phosphor material, (LaCeTb) PO of series
4, (CeTb) Al
11O
19The green phosphor material, or (Y, Eu)
2O
3The potpourri that the multiple phosphor of in the red-emitting phosphor material one or more mixes with any ratio.
Described phosphor sample and be powder with reference to sample.
Described sample chamber is a glassware.
The method of the invention convenient test, simple, accurately, usable range is extensive, the powder ageing resistance that can test phosphor material effectively effectively prevents product quality accident in use.
Four, embodiment:
For obtaining reliable phosphor aging performance test data, the invention provides a kind of method of testing of phosphor powder aging characteristics, mainly be to adopt the 253.7nm ultraviolet to continue to excite the surface of sample, utilize the phosphorescence intensity measuring instrument on time coordinate, to write down the phosphorescence intensity of different time, thereby measure the ageing properties of phosphor powder effectively.
1. select the phosphor sample and, go out to fill up the glass film plates groove that carries sample with sample with reference to sample Yao, after the glass sheet pressing with lubricous dry, glass film plates is steadily put into the sample chamber then with spoon with reference to sample; The one end sealing of sample chamber, the other end is connected by threeway glass and inflating and exhausting system, mercury frame.Described mercury frame contains mercury.
2. by inflating and exhausting system, make the vacuum tightness in the sample chamber reach 4.0 * 10
-4～4.0 * 10
-5Close vacuum valve after holder is above.
3. by inflating and exhausting system, charging into volume ratio in the sample chamber is V
Ar: V
Ne=90～99: 10～1 mixed inert gas Ar-Ne30～50 holders closes charging valve;
4. adopt heating generator that the mercury in the mercury frame is activated and produce mercury vapour, mercury vapour enters the sample chamber by threeway glass;
5. then the two ends of sample chamber are evenly applied toner slurry or silver paste, back to be dried forms carbon electrode or silver electrode, and logical high-frequency alternating current makes the mercuryvapour ionization in the sample chamber, emits the 253.7nm ultraviolet ray;
6. utilize the phosphorescence intensity detection instrument to aim at tested article and at last with reference to sample, luminous intensity after the time recording phosphor is subjected to 253.7nm ultraviolet ray excited, be subjected to the luminous intensity data of 253.7nm ultraviolet ray irradiation different time according to phosphor, obtain the aging data of phosphor, thereby estimate the phosphor aging performance index.
Embodiment 1:
1. select phosphor sample 1 and, go out to fill up the glass film plates groove that carries sample with sample with reference to sample Yao, after the glass sheet pressing with lubricous dry, glass film plates is steadily put into the sample chamber then with spoon with reference to sample; The one end sealing of sample chamber, the other end is connected with inflating and exhausting system, mercury frame by threeway glass.Described mercury frame contains mercury.
2. by inflating and exhausting system, make the vacuum tightness in the sample chamber reach 4.0 * 10
-4Close vacuum valve after the holder.
3. by inflating and exhausting system, charging into volume ratio in the sample chamber is V
Ar: V
NeCharging valve is closed in=90: 10 mixed inert gas Ar-Ne30 holder;
4. adopt heating generator that the mercury in the mercury frame is activated and produce mercury vapour, mercury vapour enters the sample chamber by threeway glass;
5. then the two ends of sample chamber are evenly applied toner slurry or silver paste, back to be dried forms carbon electrode or silver electrode, and logical high-frequency alternating current makes the mercuryvapour ionization in the sample chamber, emits the 253.7nm ultraviolet ray;
6. utilize the phosphorescence intensity detection instrument to aim at tested article and at last with reference to sample, luminous intensity after the time recording phosphor is subjected to 253.7nm ultraviolet ray excited, be subjected to the luminous intensity data of 253.7nm ultraviolet ray irradiation different time according to phosphor, obtain the aging data of phosphor, thereby estimate the phosphor aging performance index.
8 hours test datas of embodiment 1 gained sample see the following form:
Can find out from last table, be 10.74% with reference to 8 hours ultraviolet irradiation luminous strength retrogressions of 253.7nm of sample, and 8 hours ultraviolet irradiation luminous strength retrogressions of 253.7nm of sample 1 are 6.61%.
Embodiment 2:
1. select phosphor sample 2 and, go out to fill up the glass film plates groove that carries sample with sample with reference to sample Yao, after the glass sheet pressing with lubricous dry, glass film plates is steadily put into the sample chamber then with spoon with reference to sample; The one end sealing of sample chamber, the other end is connected with inflating and exhausting system, mercury frame by threeway glass.Described mercury frame contains mercury.
2. by inflating and exhausting system, make the vacuum tightness in the sample chamber reach 1 * 10
-4Close vacuum valve after the holder.
3. by inflating and exhausting system, charging into volume ratio in the sample chamber is V
Ar: V
NeCharging valve is closed in=95: 5 mixed inert gas Ar-Ne40 holder;
4. adopt heating generator that the mercury in the mercury frame is activated and produce mercury vapour, mercury vapour enters the sample chamber by threeway glass;
5. then the two ends of sample chamber are evenly applied toner slurry or silver paste, back to be dried forms carbon electrode or silver electrode, and logical high-frequency alternating current makes the mercuryvapour ionization in the sample chamber, emits the 253.7nm ultraviolet ray;
6. utilize the phosphorescence intensity detection instrument to aim at tested article and at last with reference to sample, luminous intensity after the time recording phosphor is subjected to 253.7nm ultraviolet ray excited, be subjected to the luminous intensity data of 253.7nm ultraviolet ray irradiation different time according to phosphor, obtain the aging data of phosphor, estimate the phosphor aging performance index.8 hours test datas of embodiment 2 gained samples see the following form:
Can find out from last table, be 10.07% with reference to 8 hours ultraviolet irradiation luminous strength retrogressions of 253.7nm of sample, and 8 hours ultraviolet irradiation luminous strength retrogressions of 253.7nm of sample 2 are 16.89%.
Embodiment 3:
1. select sample 3 and, go out to fill up the glass film plates groove that carries sample with sample with reference to sample Yao, after the glass sheet pressing with lubricous dry, glass film plates is steadily put into the sample chamber then with spoon with reference to sample; The one end sealing of sample chamber, the other end is connected with inflating and exhausting system, mercury frame by threeway glass.Described mercury frame contains mercury.
2. by inflating and exhausting system, make the vacuum tightness in the sample chamber reach 4 * 10
-5Close vacuum valve after the holder.
3. by inflating and exhausting system, charging into volume ratio in the sample chamber is V
Ar: V
NeCharging valve is closed in=99: 1 mixed inert gas Ar-Ne50 holder;
4. adopt heating generator that the mercury in the mercury frame is activated and produce mercury vapour, mercury vapour enters the sample chamber by threeway glass;
5. then the two ends of sample chamber are evenly applied toner slurry or silver paste, back to be dried forms carbon electrode or silver electrode, and logical high-frequency alternating current makes the mercuryvapour ionization in the sample chamber, emits the 253.7nm ultraviolet ray;
6. utilize the phosphorescence intensity detection instrument to aim at tested article and at last with reference to sample, luminous intensity after the time recording phosphor is subjected to 253.7nm ultraviolet ray excited, be subjected to the luminous intensity data of 253.7nm ultraviolet ray irradiation different time according to phosphor, obtain the aging data of phosphor, thereby estimate the phosphor aging performance index.
8 hours test datas of embodiment 3 gained samples see the following form:
Can find out from last table, be 10.96% with reference to 8 hours ultraviolet irradiation luminous strength retrogressions of 253.7nm of sample, and 8 hours ultraviolet irradiation luminous strength retrogressions of 253.7nm of sample 3 are 9.97%.
Pass through the method, test to the ageing properties of phosphor just can more conveniently be tested, and to test aging conditions later on more simple than each phosphor sample being made fluorescent light, and influence factor lacks later on than making fluorescent light, and the ageing properties index situation of sample more can be described.
This phosphor aging performance test methods of the present invention, be in same sample chamber, with identical 253.7nm UV intensity, excite sample simultaneously and with reference to sample, obtain sample and with reference to the phosphor aging data of sample, thereby estimate sample phosphor good and poor with respect to reference sample phosphor aging performance.Adopt method of the present invention to have higher comparative.
The method of the invention test 253.7nm burst of ultraviolel lamp with the phosphor aging performance test methods can to the trichromatic energy saving lamp with phosphor test, the while, can also to test the equal excitation condition with phosphor, FFL flat florescent lamp with phosphor to CCFL used for cold cathode fluorescent lamp phosphor, EEFL external electrode fluorescence lamp be that the phosphor of 253.7nm burst of ultraviolel is tested, usable range is extensive.
Described phosphor material is (BaEu) MgAl
10O
17, (BaEu) (MgMn) Al
10O
17, (BaSrEu) MgAl
10O
17, (BaSrEu) (MgMn) Al
10O
17Blueness, blue-green, green phosphor material, (LaCeTb) PO of series
4, (CeTb) Al
11O
19The green phosphor material, or (Y, Eu)
2O
3The potpourri that the multiple phosphor of in the red-emitting phosphor material one or more mixes with any ratio.
Phosphor sample and be powdered sample with reference to sample can avoid phosphor is made numerous influence factors of test ageing properties behind the fluorescent light, for example: because the ropy influence of phosphor film that the phosphor coagulation problems is brought in test process; Phosphor powder coated with after because influence that the organic substance residues that thoroughly do not cause of high temperature roasted tube is brought or the like.Adopt the ageing properties influence factor of method test phosphor of the present invention few.
Claims (5)
1. a 253.7nm burst of ultraviolel lamp phosphor aging performance test methods is characterized in that: comprise following operation steps
(1) be placed on equably in the glass film plates groove that carries sample with the phosphor sample with reference to sample, the glass sheet smooth with surfacing flattens it, and the glass film plates that will carry sample is then put into the sample chamber;
(2) will vacuumize in the sample chamber earlier, make the vacuum tightness of sample chamber reach 4.0 * 10
-4～4.0 * 10
-5Holder;
(3) then charging into volume ratio in the sample chamber is V
Ar: V
Ne=90～99: 10～1 mixed inert gas Ar-Ne30～50 holders;
(4) in the sample chamber, charge into mercuryvapour again;
(5) then the two ends of sample chamber are evenly applied toner slurry or silver paste, back to be dried forms carbon electrode or silver electrode, and logical high-frequency alternating current makes the mercuryvapour ionization in the sample chamber, emits the 253.7nm ultraviolet ray;
(6) utilize the phosphorescence intensity detection instrument to aim at tested article and at last with reference to sample, luminous intensity after the time recording phosphor is subjected to 253.7nm ultraviolet ray excited, be subjected to the luminous intensity data of 253.7nm ultraviolet ray irradiation different time according to phosphor, obtain sample and with reference to the phosphor aging data of sample, by the contrast sample with reference to the phosphor aging data of sample, estimate sample phosphor aging performance index again.
2. a kind of 253.7nm burst of ultraviolel lamp phosphor aging performance test methods according to claim 1 is characterized in that: comprise following operation steps
(1) selects phosphor sample and, go out to fill up the glass film plates groove of carrying sample with sample with reference to sample Yao, after flattening with the glass sheet of lubricous dry then, glass film plates is steadily put into the sample chamber with spoon with reference to sample; The one end sealing of sample chamber, the other end is connected by threeway glass and inflating and exhausting system, mercury frame; Described mercury frame contains mercury;
(2) by inflating and exhausting system, make the vacuum tightness in the sample chamber reach 4.0 * 10
-4～4.0 * 10
-5Close vacuum valve after the holder;
(3) by inflating and exhausting system, charging into volume ratio in the sample chamber is V
Ar: V
Ne=90～99: 10～1 mixed inert gas Ar-Ne30～50 holders closes charging valve;
(4) adopt heating generator that the mercury in the mercury frame is activated and produce mercury vapour, mercury vapour enters the sample chamber by threeway glass;
(5) then the two ends of sample chamber are evenly applied toner slurry or silver paste, back to be dried forms carbon electrode or silver electrode, and logical high-frequency alternating current makes the mercuryvapour ionization in the sample chamber, emits the 253.7nm ultraviolet ray;
(6) utilize the phosphorescence intensity detection instrument to aim at tested article and at last with reference to sample, luminous intensity after the time recording phosphor is subjected to 253.7nm ultraviolet ray excited, be subjected to the luminous intensity data of 253.7nm ultraviolet ray irradiation different time according to phosphor, obtain sample and with reference to the phosphor aging data of sample, by the contrast sample with reference to the phosphor aging data of sample, estimate sample phosphor aging performance index again.
3. a kind of 253.7nm burst of ultraviolel lamp phosphor aging performance test methods according to claim 1 and 2, it is characterized in that: described phosphor material is (BaEu) MgAl
10O
17, (BaEu) (MgMn) Al
10O
17, (BaSrEu) MgAl
10O
17, (BaSrEu) (MgMn) Al
10O
17Blueness, blue-green, green phosphor material, (LaCeTb) PO of series
4, (CeTb) Al
11O
19The green phosphor material, or (Y, Eu)
2O
3The potpourri that the multiple phosphor of in the red-emitting phosphor material one or more mixes with any ratio.
4. a kind of 253.7nm burst of ultraviolel lamp phosphor aging performance test methods according to claim 1 and 2 is characterized in that: described phosphor sample and be powder with reference to sample.
5. a kind of 253.7nm burst of ultraviolel lamp phosphor aging performance test methods according to claim 1 and 2, it is characterized in that: described sample chamber is a glassware.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910022770 CN101566556B (en) | 2009-06-01 | 2009-06-01 | Method for testing aging characteristic of phosphor for 253.7-nanometer UV excitation lamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910022770 CN101566556B (en) | 2009-06-01 | 2009-06-01 | Method for testing aging characteristic of phosphor for 253.7-nanometer UV excitation lamp |
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|---|---|
| CN101566556A true CN101566556A (en) | 2009-10-28 |
| CN101566556B CN101566556B (en) | 2011-08-10 |
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|---|---|---|---|
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109520917A (en) * | 2018-12-30 | 2019-03-26 | 苏州阿特斯阳光电力科技有限公司 | The corrosion resistance test method of cell piece slurry |
| CN110907179A (en) * | 2018-09-17 | 2020-03-24 | 上海汽车集团股份有限公司 | Aging method and device of post-processing system and processing method |
| CN113970515A (en) * | 2020-07-24 | 2022-01-25 | 宝山钢铁股份有限公司 | Method for accurately measuring corrosion weight gain of metal material and application |
-
2009
- 2009-06-01 CN CN 200910022770 patent/CN101566556B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907179A (en) * | 2018-09-17 | 2020-03-24 | 上海汽车集团股份有限公司 | Aging method and device of post-processing system and processing method |
| CN109520917A (en) * | 2018-12-30 | 2019-03-26 | 苏州阿特斯阳光电力科技有限公司 | The corrosion resistance test method of cell piece slurry |
| CN113970515A (en) * | 2020-07-24 | 2022-01-25 | 宝山钢铁股份有限公司 | Method for accurately measuring corrosion weight gain of metal material and application |
| CN113970515B (en) * | 2020-07-24 | 2023-11-14 | 宝山钢铁股份有限公司 | Method for accurately measuring corrosion weight gain of metal material and application thereof |
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Granted publication date: 20110810 Termination date: 20160601 |