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Photoconduction and hyperelectronic polarization in xanthene organic polymer

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Il Nuovo Cimento B (1971-1996)

Summary

Bulk photoconductivity and dielectric constant of xanthene organic polymer under voltage ((100÷800) V) and temperature ((30÷120) °C) variations show that generation of charge carriers is not a primary process but seems to occur because of two-exciton mechanism, one formed by light absorption and the other (Mott exciton) due to hyperelectronic polarization.

Riassunto

La fotoconducibilità di volume e la costante dielettrica del polimero organico xantene sottoposto a variazione di tensione electtrica ((100÷800) V) e di temperatura ((30÷120) °C) mostra che la produzione di portatori di carica non è un processo primario, ma sembra avvenire per un meccanismo a due eccitoni, uno formato dall'assorbimento della luce e l'altro (eccitone di Mott) dovuto alla polarizzazione iperelettronica.

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Author notes

  1. A. P. Srivastava & D. P. Agrawal

    Present address: Solid State Physics Laboratory, University of Saugar, Sagar, M. P.

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    1. A. P. Srivastava
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    2. D. P. Agrawal
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    Srivastava, A.P., Agrawal, D.P. Photoconduction and hyperelectronic polarization in xanthene organic polymer. Nuov Cim B 27, 94–102 (1975). https://doi.org/10.1007/BF02726341

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