Synthesis and Fluorescence Properties of a Terbium Complex with Ferrocenylazobenzoic Acid in Nanoparticles

Abstract:

Tb (AUFA)₃2H₂O, a rare earth terbium complex,was synthesized by introducing 4-(11-azobenzene-undecyloxy) ferrocene acid (AUFA) as the ligand. This complex was characterized by elemental analysis, MS, IR, Raman, UV spectroscopy and fluorescence spectrophotometry. The complex exhibited ligand-sensitized green emission, and Tb (AUFA)₃2H₂O had a higher sensitized luminescence efficiency and a longer lifetime than the other terbium complexes (DPC: 2, 6-Pyridinedicarboxylic acid, Aspirin: 2-ethanoylhydroxybenzoic acid). The organic-inorganic thin film of complexe Tb (AUFA)₃2H₂O in nanoTiO₂ was fabricated, and the nanoTiO₂ has been used in the luminescence layer to change the luminescence property of complexes Tb (AUFA)₃2H₂O. It was found that there was an efficient energy transfer process between the ligands and metal ions. Moreover, In an ITO/PVK/Tb (AUFA)₃2H₂O/Al device, Tb³⁺ may be excited by intramolecular energy transfer from the ligand, as observed by electroluminescence. The main emitting peak at 545 nm can be attributed to the ⁵D₄→⁷F₅ transition of the Tb³⁺ ion, and this process results in the enhancement of the green emission from the electroluminescence device.

• Periodical: Materials Science Forum (Volume 898)
• Pages: 1850-1856
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.898.1850
• Online since: June 2017
• Authors: Yu Guang Lv*, Bo Wang, Yu Shan Qin, Xiao Li Qi, Shan Shan Song, Di Song
• Keywords: Chemical Synthesis, Infrared Spectroscopy, Luminescence, Nano-TiO₂ Thin Films, Structural Materials

References

[1] Kide J, Hayase H, Hongawa K. Bright red lightemitting organic electrolumine scent devices having a europium complex as an emitter. Appl. Phys. Lett. 65(1994) 2124-2128.

DOI: 10.1063/1.112810

[2] Qian-Ming Wang, Bing Yan, Xin-Hua Zhang. Photophysical properties of novel lanthanide complexes with long chain mono-eicosyl cis-butene dicarboxylate. J. Photochem. Photobiol. A Chem. 174 (2005) 119–124.

DOI: 10.1016/j.jphotochem.2005.02.016

[3] Miki Hasegawa, Ayumi Ishii, Shinobu Kishi. Picosecond time-resolved lumine -scence of Pr (III) complexes: Intramolecular excitation energy transfer from ligand to Pr(III). J. Photochem. Photobiol. A Chem. 178 (2006) 220–224.

DOI: 10.1016/j.jphotochem.2005.12.005

[4] Yasuchika Hasegawa, Hideki Kawai, Kazuki Nakamura, Naoki Yasuda, Yuji Wada, Shozo Yanagida. Molecular design of luminescent Eu(III) complexes as lanthanide lasing material and their optical properties. J Alloy Compd. 408 (2006) 669–674.

DOI: 10.1016/j.jallcom.2004.12.145

[5] Guo Lun Zhong, Yong-Hong Wang, Cun Kuan Wang, Bing-Yin Pu, Yu Feng, Kong-Zhang Yang, Jung-Il Jin. Assemblies, characterization, and luminescent enhancement of organized molecular films based on rare earth complexes. J. Lumin. 99 (2002) 213 – 222.

DOI: 10.1016/s0022-2313(02)00340-x

[6] A. Le Donne, M. Dilda, M. Crippa, M. Acciarri, S. Binetti. Rare earth organic complexes as down-shifters to improve Si-based solar cell efficiency. Optical Materials 33 (2011) 1012–1014.

DOI: 10.1016/j.optmat.2010.10.005

[7] A. Le Donne, M. Dilda, M. Crippa, M. Acciarri, S. Binetti. Rare earth organic complexes as down-shifters to improve Si-based solar cell efficiency, Optical Materials 33 (2011) 1012–1014.

DOI: 10.1016/j.optmat.2010.10.005

[8] Junbo Guan, Biao Chen, Youyi Sun, Hao Liang, Qijin Zhang. Effects of synergetic ligands on the thermal and radiative properties of Eu(TTA)3nL-doped poly(methyl metha-crylate). J Non Cryst Solids. 351 (2005) 849-855.

DOI: 10.1016/j.jnoncrysol.2005.02.011

[9] Yan Liu, Chunfang Ye, Guodong Qian, Jianrong Qiu, Mingquan Wang. Enhanced lumenescence of Eu3+ by Gd3+ in ternary chelate doped in gel glasses via in situ technique. J. Lumin. 118 (2006) 158–164.

DOI: 10.1016/j.jlumin.2005.08.007

[10] Kazuki Nakamura, Yasuchika Hasegawa, Hideki Kawai, Naoki Yasuda , Yuji Wada, Shozo Yanagida. High lasing oscillation efficiency of Eu(III) complexes having remarkably sharp emission band. J Alloys Compd. 408(2006) 771–775.

DOI: 10.1016/j.jallcom.2004.12.144

[11] Katleen Korthout, Philippe F. Smet, Dirk Poelman. Resonance modes in rare earth doped microcrystals, Optical Materials 33 (2011) 1128–1130.

DOI: 10.1016/j.optmat.2010.08.002

[12] Li Liu, Wan Zhang, Xiaolin Li, Xiu Juan Zhang, Li Qun Zhang, Ri Guang Jin. Preparation and luminescence properties of Sm(TTA)3phen/NBR composites. Compos Sci Technol. 67(2007)2199 –2207.

DOI: 10.1016/j.compscitech.2005.07.001

[13] Yu Guang Lv, Chun Xiang Song, Yu Zhang, Jing Quan Sha, Cui Juan Liu, Fu Jun Zhang. Synthesis and electroluminescent property of ternary complexes Eu(TTA)3M. J Alloy Compd. 492(2010)259–263.

DOI: 10.1016/j.jallcom.2009.11.020