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author：

Wang, Z. (Wang, Z..) [1] | Ding, C. (Ding, C..) [2] | Han, W. (Han, W..) [3] | Wang, Y. (Wang, Y..) [4] | Zhang, H. (Zhang, H..) [5] | Ling, J. (Ling, J..) [6] | Zhou, Y. (Zhou, Y..) [7] | Xu, W. (Xu, W..) [8] | Hong, M. (Hong, M..) [9]

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Scopus

Abstract：

High-power　white　LEDs　lighting　places　pressing　need　on　novel　color　converter　to　achieve　a　balanced　spectrum　while　maintaining　high　luminous　efficiency　and　robustness.　In　this　study,　Triple-layered　phosphor　film　coated　transparent　ceramic　(PFCTC)　with　different　phosphor　contents　and　structures　were　prepared　by　spin-coating　Lu3Al5O12:Ce3+　(green-emitting)　and　CaAlSiN3:Eu2+　(red-emitting)　phosphor-SiO2　films　on　yellow-emitting　Y3Al5O12:Ce3+　(YAG:Ce)　transparent　ceramics.　Commercial　colloidal　silica　was　selected　as　the　source　of　SiO2　and　acted　as　an　inorganic　binder,　gap　filler　and　a　protective　coating　layer.　The　phosphor　film,　made　from　a　mixture　of　SiO2　sol　and　either　Lu3Al5O12:Ce3+　or　CaAlSiN3:Eu2+　phosphors,　exhibited　strong　adhesion　to　the　substrate.　A　50　W　COB　light　source　was　constructed　by　encapsulating　these　PFCTC　composites　with　blue　LED　chips.　The　resulting　device　achieved　a　color　rendering　index　of　92.7,　excellent　thermal　stability　(maintaining　93.2　%　room-temperature　intensity　at　200　°C),　and　luminous　efficiency　(103.53　lm/W).　These　results　suggested　that　the　PFCTC　is　a　promising　candidate　for　high-power　WLEDs.　©　2025

Keyword：

Color converter High color rendering High power WLEDs Phosphor film Transparent ceramic

Community：

  • [ 1 ] [Wang Z.]College of Chemistry, Fuzhou University, Fujian, Fuzhou, 350108, China
  • [ 2 ] [Wang Z.]Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
  • [ 3 ] [Wang Z.]Fujian College, University of Chinese Academy of Sciences, Fuzhou, 350002, China
  • [ 4 ] [Ding C.]College of Chemistry, Fuzhou University, Fujian, Fuzhou, 350108, China
  • [ 5 ] [Ding C.]Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
  • [ 6 ] [Ding C.]Fujian College, University of Chinese Academy of Sciences, Fuzhou, 350002, China
  • [ 7 ] [Han W.]Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
  • [ 8 ] [Han W.]Fujian College, University of Chinese Academy of Sciences, Fuzhou, 350002, China
  • [ 9 ] [Wang Y.]Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
  • [ 10 ] [Wang Y.]Fujian College, University of Chinese Academy of Sciences, Fuzhou, 350002, China
  • [ 11 ] [Zhang H.]Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, 350108, China
  • [ 12 ] [Zhang H.]Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
  • [ 13 ] [Ling J.]Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, 350108, China
  • [ 14 ] [Ling J.]Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
  • [ 15 ] [Zhou Y.]Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, 350108, China
  • [ 16 ] [Zhou Y.]Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
  • [ 17 ] [Xu W.]Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, 350108, China
  • [ 18 ] [Xu W.]Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
  • [ 19 ] [Hong M.]Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, 350108, China
  • [ 20 ] [Hong M.]Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China

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Source ：

Ceramics International

ISSN： 0272-8842

Year： 2025

5 . 1 0 0

JCR@2023

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30 Days PV： 1

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