Abstract
Solutions of PbS particles and gelatin were used for the preparation of nanocomposites by a spin-coating process. This allows for the preparation of nanocomposite films with controlled thickness, e.g., between 40 nm and 2 μm for a film containing 45 wt.% PbS. Surface roughness and film thickness were investigated by surface profilometry and scanning electron microscopy (SEM). The refractive index at 632.8 nm can be expressed by a linear function of the volume fraction of PbS in the range of 0 to 55 vol. % PbS. In this range, the refractive index increases from 1.5 to 2.5 with increasing PbS ratio and belongs, therefore, to the highest refractive indices known for polymeric composite materials.
Similar content being viewed by others
References
E.J. A. Pope. M. Asami. and J. D. Mackenzie. J. Mater. Res. 4, 101S (1989).
E. J. A. Pope, M. Asami. and J. D. Mackenzie, in Multicompvnent Ultrafine Microstructures, edited by L. E. McCandlish, D. E. Polk, R. W. Siegel, and G. H. Rear (Mater. Res. Soc. Symp. Proc. 132, Pittsburgh. PA. 1989), p. 105.
P.N. Dunlap and S.E. Howe, Polym. Compos. 12, 39 (1991).
W. Mahler. U.S. Patent 4738 798 (1988).
W. Mahler. Inorg. Chcm. 27, 435 (1988).
Y. Wang. A. Suna. and W. Mahler, in Nonlinear Optical Properlies of Polymers, edited by A.J. Heeger, J. Orenstein, and D. R. Ulrich (Mater. Res. Soc. Symp. Proc. 109, Pittsburgh, PA, 1988), p. 187.
M. Weibel. W. Cased, U.W. Suter, H. Kiess, and E. Wehrli, Polym. Adv. Technol. 2, 75 (1991).
Polymer Handbook, edited by J. Brandrup and E. H. Immergut (John Wiley and Sons, New York. 1989).
T. Sugiyama. T. Wada, and H. Sasabe. Synthet. Met. 28, C323 (1989).
H-U. Simmrock. A. Mathy. L. Dominguez, W. H. Meyer, and G. Wegner, Adv. Mater. 1, 294 (1989).
R. A. Gaudiana and R. A. Minns, J. Macromol. Sci. A 28, 831 (1991).
H.G. Rogers. R. A. Gaudiana. W.C. Hollinsed, P. S. Kalyanaraman. J.S. Manello. C. McGowan, R. A. Minns, and R. Sahatjian, Macromolecules 18, 1058 (1985).
Handbook of Optical Constants of Solids, edited by E.D. Palik (Academic Press. Orlando. FL, 1985).
W.H. Westphal. Physik (Springer. Berlin, 1963), p. 507.
A. Weill, Springer Proc. Phys. 13, 51 (1986).
J.H. Luft, J. Biophys. Biochem. Cytol. 9, 409 (1961).
K.J. Skrobis. D D. Denton, and A.V. Skrobis, Polym. Eng. Sci. 30, 193 (1990).
B. Reisleld. S.G. Bankoff, and S.H. Davis, J. Appl. Phys. 70, 5258 (1991).
B. Rcisfcld. S.G. Bankoff, and S.H. Davis, J. Appl. Phys. 70, 5267 (1991).
J. Russat. Surf. Interface Anal. 11, 414 (1988).
L. M. Peurrung and D. B. Graves, J. Electrochem. Soc. 138, 2115 (1991).
K-Y. Law, Polymer 23, 1627 (1982).
A.J. Nozik, F. Williams, M.T. Nenadovic, T. Rajh, and O.I. Micic, J. Phys. Chem. 89, 397 (1985).
Encyclopedia of Polymer Science and Engineering,, edited by II. F. Mark, N. M. Bikales, C. G. Overberger, G. Menges, and J. I. Kroschwitz (John Wiley and Sons, New York. 1987), Vol. 7.
Handbook of Chemistry and Physics, edited by R. C. Weast (CRC Press. Boca Raton. FI., 1985).
R. Rossetti, R. Hull. J. M. Gibson, and L. K. Brus, J. Chem. Phys. 83, 1406 (1985).
Y. Wang and N. Ilerron. J. Phys. Chem. 91, 257 (1987).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Zimmennann, L., Weibel, M., Caseri, W. et al. High refractive index films of polymer nanocomposites. Journal of Materials Research 8, 1742–1748 (1993). https://doi.org/10.1557/JMR.1993.1742
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1557/JMR.1993.1742