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Cs2MnCl4:Eu2+: A Near-Violet Light-Triggered Single-Component White Light Emitter.
Hou, Jingshan; Wu, Jianghua; Fang, Yongzheng; Wei, Yi; Dong, Langping; Zhang, Ganghua; Liu, Yufeng; Chen, Haijie; Li, Guogang.
Affiliation
  • Hou J; School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, P. R. China.
  • Wu J; School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, P. R. China.
  • Fang Y; State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Institute of Functional Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, P. R. China.
  • Wei Y; School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, P. R. China.
  • Dong L; Faculty of Materials Science and Chemistry, China University of Geosciences Wuhan 430074, P. R. China.
  • Zhang G; School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, P. R. China.
  • Liu Y; School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, P. R. China.
  • Chen H; School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, P. R. China.
  • Li G; State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Institute of Functional Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, P. R. China.
ACS Appl Mater Interfaces ; 16(23): 30176-30184, 2024 Jun 12.
Article in En | MEDLINE | ID: mdl-38826007
ABSTRACT
Single-component white-light luminescent materials are considered an economical and facile choice for phosphor-converted white light-emitting diodes (pc-WLEDs). Here, a new single-component white-light-emitting material Cs2MnCl4Eu2+ based on the combination of a lead-free halide structure and a rare-earth ion is first reported. Benefiting from the smart dilution-sensitization design strategy, white light composed of dual broad emission originating from Eu2+ (blue light, 444 nm, 4f65d1 → 4f7) and Mn2+ (yellow light, 566 nm, 4T1g → 6A1g) was successfully realized under near-ultraviolet light (404 nm) radiation with a high photoluminescence quantum yield of 66%. Based on the single-source Cs2MnCl4Eu2+ phosphor, a pc-WLEDs device with "eye-friendly" white light production was successfully fabricated. The pc-WLEDs exhibit suitable color coordinates of (0.3294, 0.2746) and a high color rendering index of 82.3, demonstrating the potential in the future health-conscious illumination application by reducing the risk of eye strain and high-energy blue-light damage. This work achieves a new single-component white-light-emitting Mn-based halide phosphor and provides a new path for the design of single-component white light sources in Mn-based halides.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: ACS Appl Mater Interfaces Journal subject: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Year: 2024 Document type: Article Country of publication: United States
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: ACS Appl Mater Interfaces Journal subject: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Year: 2024 Document type: Article Country of publication: United States