Synthesis and luminescent properties of ternary complex Eu(UVA)<sub>3</sub>Phen in nano-TiO<sub>2</sub>

Lü Yu-guang; GONG Zhong-ping; GAO Hong-bing; ZHOU Shu-jing; Lü Kui-lin; WANG Ying; A Du; DU Hao-ran; ZHANG Li; ZHANG Fu-jun

doi:doi:10.1007/s11801-015-4165-4

光电子快报（英文版）, 2015, 11 (1): 41, Published Online: Oct. 12, 2017

Synthesis and luminescent properties of ternary complex Eu(UVA)₃Phen in nano-TiO₂

论文大纲

Lü Yu-guang ¹GONG Zhong-ping ¹GAO Hong-bing ¹ZHOU Shu-jing ^1,*Lü Kui-lin ²WANG Ying ¹A Du ¹DU Hao-ran ¹ZHANG Li ¹ZHANG Fu-jun ³

Author Affiliations

¹ College of Pharmacy, Jiamusi University, Jiamusi 154007, China

² College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China

³ Key Laboratory of Luminescence and Optical Information, Beijing Jiaotong University, Beijing 100044, China

Abstract

By introducing 2-hydroxy-4-methoxy-benzophenone (UVA) and 1,10-phenanthroline (Phen) as the ligands, the ternary rare earth complex of Eu(UVA)₃Phen is synthesized, and it is characterized by elemental analysis, mass spectra (MS) and infrared (IR) and ultraviolet (UV) spectroscopy. Results show that the Eu(III) in complex emits strong red luminescence when it is excited by UV light, and it has higher sensitized luminescent efficiency and longer lifetime. The organic-inorganic thin film of complex Eu(UVA)₃Phen doped with nano-TiO₂is prepared, and the nano-TiO₂is used in the luminescence layer to change the luminescence property of Eu(UVA)₃Phen. It is found that there is an efficient energy transfer process between ligands and metal ions. Moreover, in an indium tin oxide (ITO)/poly(N-vinylcar-bazole) (PVK)/Eu(UVA)₃Phen/Al device, Eu³⁺can be excited by intramolecular ligand-to-metal energy transfer process. The main peak of emission at 613 nm is attributed to ⁵D₀→⁷F₂ transition of the Eu³⁺, and this process results in the enhanced red emission.

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Lü Yu-guang, GONG Zhong-ping, GAO Hong-bing, ZHOU Shu-jing, Lü Kui-lin, WANG Ying, A Du, DU Hao-ran, ZHANG Li, ZHANG Fu-jun. Synthesis and luminescent properties of ternary complex Eu(UVA)₃Phen in nano-TiO₂[J]. 光电子快报（英文版）, 2015, 11(1): 41.

Synthesis and luminescent properties of ternary complex Eu(UVA)₃Phen in nano-TiO₂

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