研究目的
Investigating the synthesis and characterization of poly(methyl methacrylate) co-doped with Tb(tmhd)3 and Rhodamine B for luminescent optical fiber applications.
研究成果
The study confirmed that PMMA acts as an inert matrix facilitating an efficient energy transfer between Tb(tmhd)3 and RhB, leading to multichromophoric samples with varied emission based on RhB concentration. The presence of dopants improved the thermal resistance of PMMA, making it suitable for applications in sensors, amplifiers, and luminescent fibers.
研究不足
The study focuses on the synthesis and characterization of doped PMMA for optical fiber applications but does not explore the fabrication of actual optical fibers or their performance in telecommunications.
1：Experimental Design and Method Selection:
The study involved the synthesis of PMMA doped with Tb(tmhd)3 and RhB through a free radical polymerization process. The physical characteristics of the doped PMMA were analyzed to understand the energy transfer process and thermal resistance.
2：Sample Selection and Data Sources:
PMMA was doped with Tb(tmhd)3 at
3：57–58 mmol and RhB at different concentrations. Undoped PMMA was used as a reference. List of Experimental Equipment and Materials:
Methyl methacrylate (MMA), Benzoyl Peroxide (BP), Sodium hydroxide (NaOH), Tb(tmhd)3, and RhB were used. Equipment included an FTIR spectrometer, Raman spectrometer, STA 449 F3 Jupiter device, Minilite Pulsed Nd:YAG Laser, and Acton Spectra Pro 2300i monochromator.
4：Experimental Procedures and Operational Workflow:
The inhibitor was removed from MMA using NaOH. Doping was performed by dissolving Tb(tmhd)3 and RhB during polymerization at 65–80 °C for 31 h. Samples were prepared by cutting and polishing.
5：Data Analysis Methods:
Structural analysis was performed using FTIR and Raman spectroscopy. Thermal properties were evaluated using TG/DTG/DSC. Luminescence spectra and lifetimes were measured using a pulsed Nd:YAG laser system.
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Rhodamine B
RhB
Sigma-Aldrich
Photoluminescent material
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Terbium(III)-tris-(2,2,6,6-tetramethyl-3,5-heptanedionate)
Tb(tmhd)3
Sigma-Aldrich
Photoluminescent material
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Methyl methacrylate
MMA
Sigma-Aldrich
Monomer for polymerization process
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Benzoyl Peroxide
BP
Sigma-Aldrich
Initiator for polymerization process
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Sodium hydroxide
NaOH
Sigma-Aldrich
Removal of inhibitor from MMA
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FTIR spectrometer
Bio Rod FTS 3000 Excalibur
Structural analysis
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Raman spectrometer
Bruker Raman spectrometer
Structural analysis
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STA 449 F3 Jupiter device
NETZSCH
Thermal analysis
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Minilite Pulsed Nd:YAG Laser
Continuum
Luminescence spectra and lifetimes measurement
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Acton Spectra Pro 2300i monochromator
Luminescence spectra and lifetimes measurement
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