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Optical absorption components of light-modulated absorption spectrum of CdS (1975)

Long, E. R. ; Conway, E. J.

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Publication Date: 2011-08-16

Description: The amplitude and decay coefficient of light-induced modulation of absorption (LIMA) was measured as a function of wavelength from 535 to 850 nm for single-crystal CdS. The decay coefficient exhibited a discontinuous resonance at 710 nm which was due to the overlap and cancellation of two opposing absorption changes. A method was developed to separate these opposing absorption changes using the measured decay coefficients. The discrete-level-to-band energy for one absorption change was found to be 1.64 eV. An improved model was developed which contains two associated levels in the band gap separated by 0.32 eV.

Keywords: OPTICS

Type: Journal of Applied Physics; 46; Feb. 197

Format: text

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