Color Tunable Composite Phosphor Ceramics Based on SrAlSiN<sub>3</sub>:Eu<sup>2+</sup>/Lu<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>:Ce<sup>3+</sup> for High-Power and High-Color-Rendering-Index White LEDs/LDs Lighting
Lu<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>:Ce<sup>3+</sup> phosphor ceramics were fabricated by vacuum sintering. On this basis, a bi-layer composite phosphor was prepared by low-temperature sintering to cover the phosphor ceramics with a layer of SrAl...
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| author | Shenrui Ye Yukun Li Ming Qiang Wenhui Lou Bo Dai Hui Lin Zhaoxia Han Ruijin Hong Dawei Zhang |
| author_facet | Shenrui Ye Yukun Li Ming Qiang Wenhui Lou Bo Dai Hui Lin Zhaoxia Han Ruijin Hong Dawei Zhang |
| author_sort | Shenrui Ye |
| collection | DOAJ |
| description | Lu<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>:Ce<sup>3+</sup> phosphor ceramics were fabricated by vacuum sintering. On this basis, a bi-layer composite phosphor was prepared by low-temperature sintering to cover the phosphor ceramics with a layer of SrAlSiN<sub>3</sub>:Eu<sup>2+</sup>-phosphor-in-glass (PiG). The optical, thermal, and colorimetric properties of LuAG:Ce<sup>3+</sup> phosphor ceramics, SrAlSiN<sub>3</sub>:Eu<sup>2+</sup> phosphors and SrAlSiN<sub>3</sub>:Eu<sup>2+</sup>-PiG were studied individually. Combining the bi-layer composite phosphors with the blue LED chip, it is found that the spectrum can be adjusted by varying the doping concentration of SrAlSiN<sub>3</sub>:Eu<sup>2+</sup>-PiG and the thickness of Lu<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>:Ce<sup>3+</sup> phosphor ceramics. The maximal color rendering index value of the white LED is 86, and the R9 is 61. Under the excitation of a laser diode, the maximum phosphor conversion efficacy of the bi-layer composite phosphors is 120 lm/W, the R<sub>a</sub> is 83, and the correlated color temperature is 4534 K. These results show that the bi-layer composite phosphor ceramic is a candidate material to achieve high color rendering index for high brightness lighting. |
| first_indexed | 2024-03-10T23:18:58Z |
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| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T23:18:58Z |
| publishDate | 2023-08-01 |
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| series | Materials |
| spelling | doaj.art-e1f4886721364fe59445eb18f5dc64442023-11-19T08:28:57ZengMDPI AGMaterials1996-19442023-08-011617600710.3390/ma16176007Color Tunable Composite Phosphor Ceramics Based on SrAlSiN<sub>3</sub>:Eu<sup>2+</sup>/Lu<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>:Ce<sup>3+</sup> for High-Power and High-Color-Rendering-Index White LEDs/LDs LightingShenrui Ye0Yukun Li1Ming Qiang2Wenhui Lou3Bo Dai4Hui Lin5Zhaoxia Han6Ruijin Hong7Dawei Zhang8Engineering Research Center of Optical Instrument and System, Ministry of Education and Shanghai Key Laboratory of Modern Optical System, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai 200093, ChinaNingbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 1219 West Zhongguan Road, Ningbo 315201, ChinaShanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Laboratory of Micro-Nano Optoelectronic Materials and Devices, Key Laboratory of Materials for High-Power Laser, Shanghai 201800, ChinaEngineering Research Center of Optical Instrument and System, Ministry of Education and Shanghai Key Laboratory of Modern Optical System, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai 200093, ChinaEngineering Research Center of Optical Instrument and System, Ministry of Education and Shanghai Key Laboratory of Modern Optical System, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai 200093, ChinaEngineering Research Center of Optical Instrument and System, Ministry of Education and Shanghai Key Laboratory of Modern Optical System, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai 200093, ChinaEngineering Research Center of Optical Instrument and System, Ministry of Education and Shanghai Key Laboratory of Modern Optical System, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai 200093, ChinaEngineering Research Center of Optical Instrument and System, Ministry of Education and Shanghai Key Laboratory of Modern Optical System, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai 200093, ChinaEngineering Research Center of Optical Instrument and System, Ministry of Education and Shanghai Key Laboratory of Modern Optical System, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai 200093, ChinaLu<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>:Ce<sup>3+</sup> phosphor ceramics were fabricated by vacuum sintering. On this basis, a bi-layer composite phosphor was prepared by low-temperature sintering to cover the phosphor ceramics with a layer of SrAlSiN<sub>3</sub>:Eu<sup>2+</sup>-phosphor-in-glass (PiG). The optical, thermal, and colorimetric properties of LuAG:Ce<sup>3+</sup> phosphor ceramics, SrAlSiN<sub>3</sub>:Eu<sup>2+</sup> phosphors and SrAlSiN<sub>3</sub>:Eu<sup>2+</sup>-PiG were studied individually. Combining the bi-layer composite phosphors with the blue LED chip, it is found that the spectrum can be adjusted by varying the doping concentration of SrAlSiN<sub>3</sub>:Eu<sup>2+</sup>-PiG and the thickness of Lu<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>:Ce<sup>3+</sup> phosphor ceramics. The maximal color rendering index value of the white LED is 86, and the R9 is 61. Under the excitation of a laser diode, the maximum phosphor conversion efficacy of the bi-layer composite phosphors is 120 lm/W, the R<sub>a</sub> is 83, and the correlated color temperature is 4534 K. These results show that the bi-layer composite phosphor ceramic is a candidate material to achieve high color rendering index for high brightness lighting.https://www.mdpi.com/1996-1944/16/17/6007low-temperature sinteringbi-layer composite phosphorSrAlSiN<sub>3</sub>:Eu<sup>2+</sup>-PiGLu<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>:Ce phosphor ceramics |
| spellingShingle | Shenrui Ye Yukun Li Ming Qiang Wenhui Lou Bo Dai Hui Lin Zhaoxia Han Ruijin Hong Dawei Zhang Color Tunable Composite Phosphor Ceramics Based on SrAlSiN<sub>3</sub>:Eu<sup>2+</sup>/Lu<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>:Ce<sup>3+</sup> for High-Power and High-Color-Rendering-Index White LEDs/LDs Lighting Materials low-temperature sintering bi-layer composite phosphor SrAlSiN<sub>3</sub>:Eu<sup>2+</sup>-PiG Lu<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>:Ce phosphor ceramics |
| title | Color Tunable Composite Phosphor Ceramics Based on SrAlSiN<sub>3</sub>:Eu<sup>2+</sup>/Lu<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>:Ce<sup>3+</sup> for High-Power and High-Color-Rendering-Index White LEDs/LDs Lighting |
| title_full | Color Tunable Composite Phosphor Ceramics Based on SrAlSiN<sub>3</sub>:Eu<sup>2+</sup>/Lu<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>:Ce<sup>3+</sup> for High-Power and High-Color-Rendering-Index White LEDs/LDs Lighting |
| title_fullStr | Color Tunable Composite Phosphor Ceramics Based on SrAlSiN<sub>3</sub>:Eu<sup>2+</sup>/Lu<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>:Ce<sup>3+</sup> for High-Power and High-Color-Rendering-Index White LEDs/LDs Lighting |
| title_full_unstemmed | Color Tunable Composite Phosphor Ceramics Based on SrAlSiN<sub>3</sub>:Eu<sup>2+</sup>/Lu<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>:Ce<sup>3+</sup> for High-Power and High-Color-Rendering-Index White LEDs/LDs Lighting |
| title_short | Color Tunable Composite Phosphor Ceramics Based on SrAlSiN<sub>3</sub>:Eu<sup>2+</sup>/Lu<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>:Ce<sup>3+</sup> for High-Power and High-Color-Rendering-Index White LEDs/LDs Lighting |
| title_sort | color tunable composite phosphor ceramics based on sralsin sub 3 sub eu sup 2 sup lu sub 3 sub al sub 5 sub o sub 12 sub ce sup 3 sup for high power and high color rendering index white leds lds lighting |
| topic | low-temperature sintering bi-layer composite phosphor SrAlSiN<sub>3</sub>:Eu<sup>2+</sup>-PiG Lu<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>:Ce phosphor ceramics |
| url | https://www.mdpi.com/1996-1944/16/17/6007 |
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