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

  • Hao Liang (a1), Xiaohong Sun (a2), Qijin Zhang (a3), Hai Ming (a2), Jianhua Cao (a4), Zengchang Li (a5), Biao Chen (a5), Jie Xu (a5) and Hui Zhao (a5)...

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 5D07F2 to 5D07F1 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.

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a) Address all correspondence to this author. e-mail: zqjm@ustc.edu.cn

References

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Keywords

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

  • Hao Liang (a1), Xiaohong Sun (a2), Qijin Zhang (a3), Hai Ming (a2), Jianhua Cao (a4), Zengchang Li (a5), Biao Chen (a5), Jie Xu (a5) and Hui Zhao (a5)...

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