Actas de congresos
Energy Dispersive X-ray Reflectivity Applied To The Study Of Thermal Stability Of Self-assembled Organic Multilayers: Results On Phosphonic Acids
Registro en:
Synthetic Metals. , v. 161, n. 23-24, p. 2521 - 2525, 2012.
3796779
10.1016/j.synthmet.2011.09.010
2-s2.0-84855902602
Autor
De Pauli M.
Perez C.A.
Prado M.C.
Araujo D.H.C.
Neves B.R.A.
Malachias A.
Institución
Resumen
The temperature evolution of self-assembled phosphonic acid multilayers was investigated by energy dispersive X-ray reflectivity and angular-resolved reflectivity. Energy dispersive measurements were performed in an experimental setup specially designed for the X-ray fluorescence beamline of the Brazilian Synchrotron Light Laboratory. It allows the precise monitoring of phase transitions observed in organic thin film and multilayer systems. The studied multilayers - obtained from dip coating of a solution of octadecylphosphonic acid - present different bilayer periodicities of 50 (straight bilayer) and 34 (tilted bilayer). Energy dispersive and angular-resolved data evidence re-organization of the lamellar ordering of octadecylphosphonic acid multilayers as a function of temperature. The energy dispersive technique presents many advantages over conventional methods such as short acquisition time, possibility to vary external parameters and high flux, making it suitable for light scatterers as polymers and other organic molecules. © 2011 Elsevier B.V. All rights reserved. 161 23-24 2521 2525 Klauk, H., (2010) Chem. Soc. Rev., 39, pp. 2643-2666 Zschieschang, U., Ante, F., Schlörholz, M., Schmidt, M., Kern, K., Klauk, H., (2010) Adv. Mater., 22, pp. 4489-4493 Rivest, J.B., Swisher, S.L., Fong, L.K., Zheng, H.I., Alivisatos, A.P., (2011) ACS Nano, 5, pp. 3811-3816 Als-Nielsen, J., MacMorrow, D., (2001) Elements of Modern X-ray Physics, , Wiley Chichester Pietsch, U., Holy, V., Baumbach, T., (2004) High-Resolution X-ray Scattering: From Thin Films to Lateral Nanostructures, , Springer-Verlag New York Matsushita, T., Niwa, Y., Inada, Y., Nomura, M., Ishii, M., Sakurai, K., Arakawa, E., (2008) Appl. Phys. Lett., 92, pp. 0241031-0241033 Mukherjee, M., Bhattacharya, M., Sanyal, M.K., Geue, Th., Grenzer, J., Pietsch, U., (2002) Phys. Rev. e, 66. , 061801-161801-1 Bhattacharya, M., Mukherjee, M., Sanyal, M.K., (2003) J. Appl. Phys., 94, pp. 2882-2887 Bodenthin, Y., Grenzer, J., Lauter, R., Pietch, U., Lehmann, P., Kurth, D.G., Möhwald, H., (2002) J. Synchrotron Radiat., 9, pp. 206-209 Swalen, J.D., Allara, D.L., Andrade, J.D., Chandross, E.A., Garoff, S., Israelachvili, J., McCarthy, T.J., Yu, H., (1987) Langmuir, 3, pp. 932-950 Sofos, M., Goldberger, J., Stone, D.A., Allen, J.E., Ma, Q., Wei-Wen Tsai, D.J.H., Lauhon, L.J., Stupp, S.I., (2009) Nat. Mater., 8, pp. 68-75 Riepl, M., Mirskya, V.M., Novotnyb, I., Tvarozekb, V., Rehacekb, V., Wolfbeis, O.S., (1999) Anal. Chim. Acta, 392, pp. 77-84 Mende, L.S., Fechtenkötter, A., Müllen, K., Moons, E., Friend, R.H., MacKenzie, J.D., (2001) Science, 293, pp. 1119-1122 Aizenberg, J., Black, A.J., Whitesides, G.M., (1998) Nature, 394, pp. 868-871 Chitre, K., Yang, Q., Salami, T.O., Oliver, S.R., Cho, J., (2005) J. Eletron. Mater., 34, pp. 528-533 Sinapi, F., Julien, S., Auguste, D., Hevesi, L., Delhalle, J., Mekhalif, Z., (2008) Electrochim. Acta, 53, pp. 4228-4238 Nie, H.-Y., Walzak, M.J., McIntyre, N.S., (2006) J. Phys. Chem. B, 110, pp. 21101-21108 McClain, R.L., Breen, J.J., (2001) Lnagmuir, 17, pp. 5121-5124 Rui, S.W., Viswanathan, R., Zasadzinski, J.A., Israelachvili, J.N., (1995) Biophys. J., 68, pp. 171-178 Fontes, G.N., Malachias, A., Paniago, R.M., Neves, B.R.A., (2003) Langmuir, 19, pp. 3345-3349 Nie, H.-Y., Walzak, M.J., McIntyre, N.S., (2002) Langmuir, 18, pp. 2955-2958