A method for obtaining single crystal thin films of polydiacetylenes using electron irradiation is described. Film thickness can be controlled by adjusting the incident electron energy. Typical thicknesses between 100 and 2000 Å for a sample surface of a few tenths of cm2 are easily obtained. Such films may find application in nonlinear optics.
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Berréhar et al. (1986) studied this question.
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