Hostname: page-component-586b7cd67f-2brh9 Total loading time: 0 Render date: 2024-11-26T19:05:14.975Z Has data issue: false hasContentIssue false
  • English
  • Français

Nano-scale study of microstructure of Eu(DBM)3phen-doped poly(methyl methacrylate) by near-field scanning microscopy and optical properties

Published online by Cambridge University Press:  03 March 2011

Hao Liang ,
Xiaohong Sun ,
Qijin Zhang ,
Hai Ming ,
Jianhua Cao ,
Zengchang Li ,
Biao Chen ,
Jie Xu  and
Hui Zhao
Hao Liang
Affiliation:
Structure Research Laboratory and Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China
Xiaohong Sun
Affiliation:
Department of Physics, University of Science and Technology of China, Hefei,Anhui 230026, People’s Republic of China
Qijin Zhang*
Affiliation:
Structure Research Laboratory and Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, People’s Republic of China
Hai Ming
Affiliation:
Department of Physics, University of Science and Technology of China, Hefei,Anhui 230026, People’s Republic of China
Jianhua Cao
Affiliation:
School of Mechatronic Engineering, Beijing Institute of Technology,Beijing, 100081, People’s Republic of China
Zengchang Li
Affiliation:
Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China
Biao Chen
Affiliation:
Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China
Jie Xu
Affiliation:
Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China
Hui Zhao
Affiliation:
Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China
*
a) Address all correspondence to this author. e-mail: [email protected]
Get access

Abstract

Eu(DBM)3phen-doped poly(methyl methacryate) (PMMA) with different doping concentration were prepared. The highest doping concentration sample (10000 ppm) was examined by near-field scanning optical microscopy (NSOM) with a resolution of 50 nm; and the result showed that there were no aggregates larger than 50 nm in the doped polymer. This result was further confirmed by optical properties of the doping material. Concentration quenching was not detected by metastable-state lifetime measurements, indicating that no aggregates existed. According to the fluorescence spectra analysis, the relative intensity ratio (R) of 5D0→7F2 to 5D0→7F1 transition was not shown to be significantly changed with the increasing of Eu3+ content. The analysis reflected that the local structure and asymmetry in the vicinity of europium ions were not changed, and that the Eu3+ ions in PMMA were homogeneously dispersed.

Keywords

PolymerMicrostructure
Type
Articles
Information
Journal of Materials Research , Volume 19 , Issue 8 , August 2004 , pp. 2256 - 2261
Copyright
Copyright © Materials Research Society 2004

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1.Kuriki, K., Koike, Y. and Okamoto, Y.: Plastic optical fiber and amplifiers containing lanthanide complexes. Chem. Rev. 102, 2347 (2002).CrossRefGoogle ScholarPubMed
2.Zhang, Q., Wang, P., Sun, X., Zhai, Y., Yang, B., Hai, M. and Xie, J.P.: Amplified spontaneous emission of an Nd3+-doped poly(methyl methacrylate) optical fiber at ambient temperature. Appl. Phys. Lett. 72, 407 (1998).CrossRefGoogle Scholar
3.Ma, H., Jen, A.K-Y. and Dalton, L.R.: Polymer-based optical waveguides: Materials, processing and devices. Adv. Mater. 14, 1339 (2002).3.0.CO;2-O>CrossRefGoogle Scholar
4.Twomey, C.J. and Chen, S.H.: Solid polymers doped with rare-earth-metal salts 1. Complex-formation and morphology in the neodymium poly(ethylene oxide) system. J. Polym. Sci. Part B: Polym. Phys. 29, 859 (1991).CrossRefGoogle Scholar
5.Kobayashi, T., Kurki, K., Imai, N., Tamura, T., Sasaki, K., Koike, Y. and Okamoto, Y.High power polymer optical fiber lasers and amplifiers. SPIE 3623, 206 (1999).Google Scholar
6.Eisenberg, A., Hird, B. and Moore, R.B.: A new multiplet-cluster model for the morphology of random ionomers. Macromolecules 23, 4098 (1990).CrossRefGoogle Scholar
7.Melby, L., Rose, N., Abramson, E. and Caris, J.C.: Synthesis and fluorescence of some trivalent lanthanide complexes. J. Am. Chem. Soc. 86, 5117 (1964).CrossRefGoogle Scholar
8.Janos, E., Andrea, B., Attila, K. and Laszlo, K.: Time-resolved study of intramolecular energy transfer in Eu3+, Tb3+/β-diketone/o-phenanthroline complexes in aqueous micellar solutions. J. Lumin. 72, 570 (1997).Google Scholar
9.Dunn, Robert C.: Near-field scanning optical microscopy. Chem. Rev. 99, 2891 (1999).CrossRefGoogle ScholarPubMed
10.Sun, X., Ming, H., Dong, N., Xie, A., Hu, J., Zhang, Q., Yin, M., Zhang, Z. and Xie, J.P.: Using spectra analysis and scanning near-field optical microscopy to study Eu doped polymer fiber. Opt. Commun. 208, 111 (2002).Google Scholar
11.Brito, H.F., Malta, O.L., Souza, L.R., Menezes, J.F.S. and Carvalho, C.A.A.: Luminescence of the films of europium (III) with thenoyltrifluoroacetonate and macrocyclics. J. Non-Cryst. Solids 247, 129 (1999).CrossRefGoogle Scholar
12.Okamoto, Y., Ueba, Y., Dzhanibekov, N.F. and Banks, E.: Rare earth metal-containing polymers. 3. Characterization of ion-containing polymer structures using rare earth metal fluorescence probes. Macromolecules 14, 17 (1981).CrossRefGoogle Scholar
13.Okamoto, Y., Ueba, Y., Nagata, I. and Banks, E.: Rare earth metal-containing polymers. 4. Energy transfer from uranyl to europium ions in ionomers. Macromolecules 14, 807 (1981).CrossRefGoogle Scholar
14.Koeppen, C., Yamada, S., Jiang, G. and Garito, A.F.: Rare-earth organic complexes for amplification in polymer optical fibers and waveguides. J. Opt. Soc. Am. B 14, 155 (1997).CrossRefGoogle Scholar
15.Wong, K.S., Sun, T., Liu, X.L., Pei, J. and Huang, W.: Optical properties and time-resolved photoluminescence of conjugated polymers with europium complex side chain as an emitter. Thin Solid Films 417, 85 (2002).CrossRefGoogle Scholar
16.Brito, H.F., Malta, O.L. and Menezes, J.F.S.: Luminescent properties of diketonates of trivalent europium with dimethyl sulfoxide. J. Alloys Compd. 303, 336 (2000).CrossRefGoogle Scholar
17.Nageno, Y., Takebe, H., Morinaga, K. and Izumitani, T.: Effect of modifier ions on fluorescence and absorption of Eu3+ in alkali and alkaline earth silicate glasses. J. Non-Cryst. Solids 169, 228 (1994).CrossRefGoogle Scholar