, Volume 73, Issue 2, pp 216-221

Saturation of absorption by lead sulfide nanoparticles in the main absorption band region

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The spectral dependence of the degree of bleaching of glasses with PbS nanoparticles (average radius from 3 to 4 nm) has been studied in the main absorption band region. It has been established that the level of residual absorption in the bleached state decreases from 0.70 to 0.02 as we go from the high-frequency edge of the main absorption band for the lead sulfide nanoparticles toward the low-frequency edge, and reflects the spectral features of absorption by charge carriers in excited states.

Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 73, No. 2, pp. 195–199, March–April, 2006.