Layer-by-layer Multilayer Films Self-assembled from a Rare-earth-containing Poly-oxometalate Na9[Eu(W5O18)2] and Poly (allylamine hydrochloride) and Their Photoluminescent Properties
Yong-Hui Wang
Institute of Polyoxometalate Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
Search for more papers by this authorXin-Long Wang
Institute of Polyoxometalate Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
Search for more papers by this authorChang-Wen Hu
Institute of Polyoxometalate Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
E-mail: [email protected]; Fax (Tel.): 0431–5640694
Search for more papers by this authorEn-Bo Wang
Institute of Polyoxometalate Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
Search for more papers by this authorChun-Shan Shi
Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
Search for more papers by this authorYong-Hui Wang
Institute of Polyoxometalate Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
Search for more papers by this authorXin-Long Wang
Institute of Polyoxometalate Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
Search for more papers by this authorChang-Wen Hu
Institute of Polyoxometalate Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
E-mail: [email protected]; Fax (Tel.): 0431–5640694
Search for more papers by this authorEn-Bo Wang
Institute of Polyoxometalate Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
Search for more papers by this authorChun-Shan Shi
Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
Search for more papers by this authorAbstract
Ultrathin multilayer films of a rare-earth-containing polyoxometalate Na9[Eu(W5O18)2] (EW) and poly(allylamine hydrochloride) (PAH) have been prepared by layer-by-layer self-assembly from dilute aqueous solutions. The fabrication process of the EW/PAH multilayer films was followed by UV-vis spectroscopy and ellipsometry, which show that the deposition process is linear and highly reproducible from layer to layer. An average EW/PAH bilayer thickness of ca. 2.1 nm was determined by ellipsometry. In addition, the scanning electron microscopy (SEM) image of the EW/PAH film indicates that the film surface is relatively uniform and smooth. The photoluminescent properties of these films were also investigated by fluorescence spectroscopy.
References
- 1 Decher, G. Science 1997, 277, 1232.
- 2 Greenham, N. C.; Moratti, S. C.; Bradeley, D. D. C.; Friend, R. H.; Holmes, A. B. Nature 1993, 365, 628.
- 3 Kleinfeld, E. R.; Ferguson, G. S. Science 1994, 265, 370.
- 4 Katz, H. E.; Schiling, M. L. Chem. Mater. 1993, 5, 1162.
- 5 Gao, G.; Hong, H.-G.; Mallouk, T. E. Acc. Chem. Res. 1992, 25, 420.
- 6 Fendler, J. H.; Meldrum, F. C. Adv. Mater. 1995, 7, 607.
- 7 Maoz, R.; Yam, R.; Sagiv, J. In Organic Thin Films and Surfaces: Directions for the Ninneties, Ed.: A. Ulman Academic Press, San Diego, 1995, p. 41.
- 8 Blodgett, K. B.; Langmuir, I. Phys. Rev. 1937, 51, 964.
- 9 Ulman, A. An Introduction to Ultrathin Organic Films: From Langmuir-Blodgett to Self-Assembly, Academic Press, Boston MA, 1991.
- 10 Ichinose, I.; Senzu, H.; Kunitake, T. Chem. Lett. 1996, 831.
- 11 Fan, H.; Zhou, Y.; Lopez, G. P. Adv. Mater. 1997, 9, 728.
- 12 Decher, G.; Hong, J. D. Makromol. Chem., Makromol. Symp. 1991, 46, 321.
- 13 Decher, G.; Hong, J. D.; Schmitt, J. Thin Solid Films 1992, 210/211, 831.
- 14 Fou, A. C.; Rubner, M. F. Macromolecules 1995, 28, 7115.
- 15 Caruso, F.; Niikura, K.; Furlong, D. N.; Okahata, Y. Langmuir 1997, 13, 3422.
- 16 Watanabe, S.; Regen, S. L. J. Am. Chem. Soc. 1994, 116, 8855.
- 17
Zhang, X.;
Shen, J.
Adv. Mater.
1999,
11,
1139.
10.1002/(SICI)1521-4095(199909)11:13<1139::AID-ADMA1139>3.0.CO;2-7 CAS Web of Science® Google Scholar
- 18 Sun, J.; Wu, T.; Liu, F.; Wang, Z.; Zhang, X.; Shen, J. Langmuir 2000, 16, 4620.
- 19 Lvov, Y.; Decher, G.; Sukhorukov, G. Macromolecules 1993, 26, 5396.
- 20 Lvov, Y.; Ariga, K.; Ichinose, I.; Kunitake, T. J. Am. Chem. Soc. 1995, 117, 6117.
- 21 Lvov, Y.; Haas, H.; Decher, G.; Möhwald, H. Langmuir 1994, 10, 4232.
- 22 Schmitt, J.; Decher, G.; Geer, R. E.; Shashidhar, R.; Calvert, J. M. Adv. Mater. 1997, 9, 61.
- 23 Hao, E.; Lian, T. Langmuir 2000, 16, 7879.
- 24 Wu, T.; Zhang, X. Chem. J. Chin. Univ. 2001, 22, 1057 (in Chinese).
- 25 Zhang, S.; Huang, G.; Shao, M.; Tang, Y. J. Chem. Soc., Chem. Commun. 1993, 37.
- 26 Muller, A.; Krickemeyer, E.; Dillinger, S.; Bogge, H.; Plass, W.; Proust, A.; Dloczik, L.; Menke, C.; Meyer, J.; Rohlfing, R. Z. Anorg. Allg. Chem. 1994, 620, 599.
- 27 For a recent overview on polyoxometalate chemistry refer to, Chem. Rev. 1998, 98, 1 and references therein.
- 28 Hu, C.; He, Q.; Zhang, Y.; Liu, Y.; Tang, T.; Zhang, J. Chem. Commun. 1996, 121.
- 29 Guo, Y.; Wang, Y.; Hu, C.; Wang, Y.; Wang, E. Chem. Mater. 2000, 12, 3501.
- 30 Guo, Y.; Li, D.; Hu, C.; Wang, Y.; Wang, E.; Zhou, Y.; Feng, S. Appl. Catal. B 2001, 30, 337.
- 31 Caruso, F.; Kurth, D. C.; Volkmer, D.; Koop, M. J.; Muller, A. Langmuir 1998, 14, 3462.
- 32 Moriguchi, I.; Fendler, J. H. Chem. Mater. 1998, 10, 2205.
- 33 Ichinose, I.; Tagawa, H.; Mizuki, S.; Lvov, Y.; Kunitake, T. Langmuir 1998, 14, 187.
- 34 Kurth, D. G.; Volkmer, D.; Ruttorf, M.; Richter, B.; Muller, A. Chem. Mater. 2000, 12, 2829.
- 35 Peacock, R. D.; Weakley, T. J. R. J. Chem. Soc. A 1971, 1836.
- 36 EW was prepared as described by Peacock and Weakley (see Ref. 35) with the composition Na9[Eu(W5O18)2] ˜ 18H2O.
- 37 Ballardini, R.; Mulazzani, Q. G.; Venturi, M.; Bolletta, F.; Balzani, V. Inorg. Chem. 1984, 23, 300.
- 38 Sugeta, M.; Yamase, T. Bull. Chem. Soc. Jpn. 1993, 66, 444.
- 39 Blasse, G.; Dirksen, G. J.; Zonnevijllle, F. J. Inorg. Nucl. Chem. 1981, 43, 2847.
- 40 Filipescu, N.; Sager, W. F.; Serafin, F. A. J. Phys. Chem. 1964, 68, 3224.
- 41 Cunha, M. C. F.; Brito, H. F.; Zinner, L. B.; Vicentini, G. Coord. Chem. Rev. 1992, 119, 1.
