Letter | Published:

Photochemical Production of Semiconducting High Polymers

Naturevolume 191pages164165 (1961) | Download Citation

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Abstract

POLYMERS may be rendered semiconducting by heating to form graphitic structures1. Such nonspecific treatment results in a drastic deterioration of physical properties of the polymer and a change in form of the samples. We have found that ultra-violet light irradiation of chlorinated high polymers transforms them into semiconductors. This treatment has advantages over the pyrolysis method in that : (a) by selective choice of ultra-violet wave-lengths specific chemical reactions are produced ; (b) the reactions may be confined to specified areas. In fact, we have found that at the border of irradiated regions unique pn junctions are produced.

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References

  1. 1

    For reviews, see Berlin, A. A., Khim. Tekh. Polimerov, Nos. 7–8 (1960). Oster, G., Oster, G. K., and Kryszewski, M. (to be published).

  2. 2

    Boyer, R. F., J. Phys. Colloid Chem., 51, 80 (1947). Matheson, L. A., and Boyer, R. F., Indust. Eng. Chem., 44, 867 (1952).

  3. 3

    Oster, G., Oster, G. K., and Moroson, H., J. Polymer Sci., 34, 671 (1959).

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  1. Polytechnic Institute of Brooklyn, Brooklyn, 1, New York

    • GERALD OSTER
    • , GISELA K. OSTER
    •  & MARIAN KRYSZEWSKI

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https://doi.org/10.1038/191164b0

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