Photoelectrochemical cells based on ternary compounds CuIn{sub 2n+1}Se{sub 3n+2} (n = 3-6)

Journal Article · Sun Mar 15 00:00:00 EDT 2009 · Semiconductors

DOI:https://doi.org/10.1134/S106378260903021X· OSTI ID:21260398

Rud, Yu V ^[1]; Bodnar, I V ^[2]; Gorbachev, D V; Ushakova, T N ^[1]

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1. Russian Academy of Sciences, Ioffe Physicotechnical Institute (Russian Federation)
2. Belarusian State University of Informatics and Radioelectronics (Belarus)

Single crystals of ternary CuIn{sub 2n+1}Se{sub 3n+2} semiconductors with the composition index n = 3, 5, 6 were grown for the first time using the direct crystallization method. It was shown that these crystals have hexagonal symmetry and close unit cell parameters. Photoelectrochemical cells based on CuIn{sub 2n+1}Se{sub 3n+2} and In{sub 2}Se{sub 3} single crystals were fabricated. Their photosensitivity spectra were measured for the first time, which were used to determine the nature of interband transitions and the band gap. The weak dependence of the parameters of the band's spectrum and unit cell of these semiconductors at n {>=} 2 was attributed to the features of the interatomic interaction in such phases. It was concluded that new CuIn{sub 2n+1}Se{sub 3n+2} semiconductors can be used in broadband photoconverters of optical radiations.

• OSTI ID: 21260398
• Journal Information: Semiconductors, Vol. 43, Issue 3; Other Information: DOI: 10.1134/S106378260903021X; Copyright (c) 2009 Pleiades Publishing, Ltd; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7826
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COPPER COMPOUNDS
CRYSTALLIZATION
ENERGY-LEVEL TRANSITIONS
INDIUM SELENIDES
INTERACTIONS
MONOCRYSTALS
PHOTOELECTROCHEMICAL CELLS
PHOTOSENSITIVITY
SEMICONDUCTOR MATERIALS
SPECTRA