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Optical Characteristics of Colloidal Nanoparticles of CdS Stabilized with Sodium Polyphosphate and Their Behavior during Pulse Photoexcitation

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Abstract

The optical and photophysical characteristics of quantum-dimensional particles of CdS stabilized in water (the oscillator force of the first exciton transition, the forbidden band width, the conduction and valence band potentials) were determined. It was established that pulse excitation of CdS nanoparticles gives rise to nonstationary bleaching of the colloid, due to the accumulation of excess electrons in the conduction band. Their amount and their consumption rate are determined by the nature and concentration of the electron donors and acceptors present in the system.

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  1. L. V. Pisarzhevskii Institute of Physical Chemistry, National Academy of Sciences of Ukraine, 31 Nauky Prospekt, 03028, Kyiv, Ukraine

    A. E. Raevskaya, A. L. Stroyuk & S. Ya. Kuchmii

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  1. A. E. Raevskaya
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  2. A. L. Stroyuk
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  3. S. Ya. Kuchmii
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Raevskaya, A.E., Stroyuk, A.L. & Kuchmii, S.Y. Optical Characteristics of Colloidal Nanoparticles of CdS Stabilized with Sodium Polyphosphate and Their Behavior during Pulse Photoexcitation. Theoretical and Experimental Chemistry 39, 158–165 (2003). https://doi.org/10.1023/A:1024933023783

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