HgTe/HgCdTe superlattices - Growth, electrical and optical properties

Details HgTe/HgCdTe superlattices - Growth, electrical and optical properties HgTe/HgCdTe superlattices - Growth, electrical and optical properties

Apr 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990jcrgr.101...96w&link_type=abstract

(Senat von Berlin, DFG, USAF, et al., International Conference on II-VI Compounds, 4th, Berlin, Federal Republic of Germany, Sep

Physics

Optics

Crystal Growth, Infrared Windows, Mercury Cadmium Tellurides, Mercury Tellurides, Superlattices, Hall Effect, Heterojunctions, Interfaces, Magneto-Optics, Molecular Beam Epitaxy, Raman Spectra, Transport Properties

Scientific paper

HgTe/HgCdTe superlattices are under development as a new infrared material for long-wavelength IR applications. The paper reports on the molecular beam epitaxial growth of high-quality HgTe/HgCdTe superlattices and the dependence of interface quality, electrical properties, and optical properties on growth conditions. Growth at 170 C on (100) substrates produced excellent quality superlattices based on these criteria. Hall measurements indicated high n- and p-type mobilities, and the absorption spectra exhibited steplike features characteristic of layered structures and in agreement with theory. Raman and magnetooptical measurements have also been performed in order to characterize the superlattice.

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