Synthesis and luminescent properties of terbium complex containing 4-benzoylbenzoic acid for application in NUV-based LED
来源期刊：Journal of Rare Earths2016年第2期
论文作者：孙乃群 赵希瑾 杨亚敏 李利平 张爱琴 贾虎生 刘旭光
文章页码：130 - 136
摘 要：A novel Tb（III） ternary complex Tb（p-BBA）3MAA was synthesized with 4-benzoylbenzoic acid（p-BBA） and methacrylic acid（MAA） as ligands. The complex was characterized by IR, UV-visible, thermogravimetric analysis and fluorescence spectroscopy. Monitored at 544 nm, the complex displayed wide and strong excitation band at 300–400 nm, which matched well with the 365 nm-emitting UV chip. The complex exhibited excellent green emission at 544 nm(5D4→7F5 transition of Tb3+) under an excitation at 365 nm. Besides, the complex showed high thermal stability. Its intramolecular energy transfer process was further discussed. Furthermore, the complex also had higher fluorescence lifetime（1.38 ms） and higher quantum yield（0.372）. Finally, electroluminescent properties indicated that when used to fabricate LED with 365 nm UV chip（power efficiency is 18.6 lm/W）, the complex remained its favorable optical performance. These results implied that Tb（p-BBA）3MAA could be used as a green phosphor for NUV-based white LED.
孙乃群1,2，赵希瑾1,2，杨亚敏1,2，李利平1,2，张爱琴3，贾虎生1,2，刘旭光1,4
1. Key Laboratory of Interface Science and Engineering in Advanced Materials of Taiyuan University of Technology, Ministry of Education2. College of Materials Science and Engineering, Taiyuan University of Technology3. College of Textile Engineering, Taiyuan University of Technology4. College of Chemistry and Chemical Engineering, Taiyuan University of Technology
摘 要：A novel Tb（III） ternary complex Tb（p-BBA）3MAA was synthesized with 4-benzoylbenzoic acid（p-BBA） and methacrylic acid（MAA） as ligands. The complex was characterized by IR, UV-visible, thermogravimetric analysis and fluorescence spectroscopy. Monitored at 544 nm, the complex displayed wide and strong excitation band at 300–400 nm, which matched well with the 365 nm-emitting UV chip. The complex exhibited excellent green emission at 544 nm(5D4→7F5 transition of Tb3+) under an excitation at 365 nm. Besides, the complex showed high thermal stability. Its intramolecular energy transfer process was further discussed. Furthermore, the complex also had higher fluorescence lifetime（1.38 ms） and higher quantum yield（0.372）. Finally, electroluminescent properties indicated that when used to fabricate LED with 365 nm UV chip（power efficiency is 18.6 lm/W）, the complex remained its favorable optical performance. These results implied that Tb（p-BBA）3MAA could be used as a green phosphor for NUV-based white LED.
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