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Langmuir-Blodgett (LB) films are exceedingly thin films (2.5-1000 nm) which, under optimum circumstances, have a highly organized layer structure at a molecular level. Although LB films have been known since the 1930s (Gaines, 1966), only about twenty years ago was it recognized that the order at the molecular level could possibly be exploited for applications in opto-electronics, microelectronics and molecular electronics. As a consequence the last twenty years have seen intense research activity on LB films (Prasad and Williams, 1990; Ulman, 1991a). Great progress has been made but as yet no commercial device has been produced. Research, however, still proceeds vigorously on a number of fronts towards this objective.
KeywordsThin Solid Film Nonlinear Optical Material Langmuir Film Aqueous Subphase Azobenzene Derivative
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- Ahmad, M. M., Feast, W. J., Neal, D. B., Petty, M. C. and Roberts, G. G. (1986) 4-n-Heptadecylamido-4’-nitrostilbene, a new Langmuir-Blodgett film material for nonlinear optics, J. Mol. Electron . 2, 129–133.Google Scholar
- Aktsipetrov, O. A., Akhmediev, I. M., Mishina, E. D. and Novak, V. R. (1983) Second-harmonic generation from a monolayer of an azobenzene derivative, J.E.T.P. Lett. 37, 207–210.Google Scholar
- Aktsipetrov, O. A., Akhmediev, N. N., Baranova, I. M., Mishina, E. D. and Navok, V. R. (1985) Multilayer Langmuir films for electro-optics and nonlinear optical methods for their study, Soy. Tech. Lett. 11, 249–251.Google Scholar
- Ashwell, G. J., Dawnay, E. J. C., Kuczynski, A. P. and Martin, P. J. (1991) The highest observed second-harmonic intensity from a multilayered Langmuir-Blodgett film structure, in: Physical Concepts and Materials for Novel Optoelectronic Devices, Proceedings S.P.I.E. Int. Soc. Opt. Eng. no.1361, pp. 589–598.Google Scholar
- Barton, J. W., Buhaenko, M., Moyle, B. and Ratcliffe, N. M. (1988) A promising material for nonlinear optics: Observation of second-harmonic generation from [N-(4-carboxypentyl)-Nmethylamino]-4’-nitrostilbene coated substrates, J. Chem. Soc., Chem. Comm. 488–489.Google Scholar
- Cross, G. H., Peterson, I. R., Girling, I. R., Cade, N. A., Goodwin, M. J., Carr, N., Sethi, R. S., Marsden, R., Gray, G. W., Lacey, D., McRoberts, A. M., Scrowston, R. M. and Toyne, K. J. (1988) Comparison of second-harmonic generatin and electrooptic studies of Langmuir—Blodgett monolayers of new hemicyanine dyes, Thin Solid Films 156, 39–52.CrossRefGoogle Scholar
- Gaines, G. L. (1966) Insoluble Monolayers at Liquid—Gas Interfaces, Interscience, New York.Google Scholar
- Hodge, P., Ali-Adib, Z., King, T. A. and West, D. (1992b) Unpublished results.Google Scholar
- Prasad, P. N. and Williams, D. J. (1990) Introduction to Non-linear Optical Effects in Molecules and Polymers, Wiley, New York.Google Scholar
- Ulman, A. (1991a) Introduction to Ultrathin Organic Films, Academic Press, San Diego.Google Scholar
- Ulman, A. (1991b) Analysis of film properties in: Introduction to Ultrathin Organic Films, Academic Press, San Diego, pp. 1–100.Google Scholar