Direct luminescence evidence for the degenerate electron—hole plasma formation in A II B VI  semiconductors | Zendy

Brodin M. S. | Zendy; Bandura V. M. | Zendy; Matsko M. G. | Zendy

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Direct luminescence evidence for the degenerate electron—hole plasma formation in A II B VI semiconductors

Author(s) -

Brodin M. S.,

Bandura V. M.,

Matsko M. G.

Publication year - 1983

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.2221190108

Subject(s) - exciton , atomic physics , degenerate energy levels , excitation , luminescence , electron , emission spectrum , semiconductor , plasma , scattering , laser , spectral line , materials science , physics , optics , optoelectronics , condensed matter physics , nuclear physics , quantum mechanics , astronomy

The emission spectra of ZnTe and ZnSe crystals are investigated at T = 4.2 K at high excitation densities by a Coumarin 30 and 120 dye laser. It is shown that for excitation densities R exc > > 0.1 MW/cm 2 the emission spectrum of ZnTe exhibits the P‐band due to inelastic exciton‐exciton scattering. For R exc > 6 MW/cm 2 the emission of a degenerate electron—hole plasma (EHP) is observed. These emission bands may be differentiated by scanning the exciting quanta energy in the short‐wavelength tail region.

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