Photosensitive structures based on CuIn{sub 5}Te{sub 8} single crystals: Development and properties

Journal Article · Sun May 15 04:00:00 EDT 2011 · Semiconductors

DOI:https://doi.org/10.1134/S106378261105006X· OSTI ID:22004818

Bodnar, I V ^[1]; Rud, V Yu ^[2]; Terukov, E I ^[3]; Kovalchuk, A M ^[1]

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1. Belarussian State University of Information Science and Radioelectronics (Belarus)
2. St. Petersburg State Polytechnical University (Russian Federation)
3. Russian Academy of Sciences, Ioffe Physical Technical Institute (Russian Federation)

A new ternary compound is synthesized for the first time, and bulk CuIn{sub 5}Te{sub 8} single crystals are grown by directed crystallization of near-stoichiometric melt. It is established from X-ray diffraction patterns of grown crystals that they exhibit the structure of imperfect chalcopyrite with parameters of the unit cell of CuIn{sub 5}Te{sub 8}, which were close to those known for the CuInTe{sub 2} ternary compound with the composition index n = 0. First, photosensitive structures are fabricated based on CuIn{sub 5}Te{sub 8} crystals, and photosensitivity spectra are obtained for them; it is shown that it is possible to achieve broadband photosensitivity under illumination of the barrier side of these crystals. From the analysis of photosensitivity spectra, the character of band-to-band transitions and corresponding energies of these transitions in CuIn{sub 5}Te{sub 8} are determined. This opens up prospects to use this new semiconductor in photoconverters of solar radiation.

• OSTI ID: 22004818
• Journal Information: Semiconductors, Journal Name: Semiconductors Journal Issue: 5 Vol. 45; ISSN SMICES; ISSN 1063-7826
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CHALCOPYRITE
CRYSTALLIZATION
MONOCRYSTALS
PHOTOSENSITIVITY
SEMICONDUCTOR MATERIALS
SOLAR RADIATION
SPECTRA
X-RAY DIFFRACTION