Far-infrared analysis of lattice vibrations in ZnSe/ZnCdSe superlattices

Vodop’yanov, L. K.; Kozyrev, S. P.; Sadofyev, Yu. G.; Tarasov, G. G.; Litvinchuk, A. P.

doi:10.1016/s0038-1098(02)00083-2

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Znse/zncdse Superlattices1

Introduction1

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Cited by 3 publications

(2 citation statements)

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“…The superlattice configurations included ZnSe buffer layer 0.5-0.8 m thick and a periodical sequence of Zn 1−x Cd x Se quantum wells with a thickness of 50-70 Å separated by ZnSe potential barriers with thickness of 65-110 Å. The lattice reflectivity spectra of three superlattices ZnSe/Zn 1−x Cd x Se with x = 0.20, 0.40, and 0.47 show that instead of expected two Reststrahlen bands we observe only one band with an intermediate TO frequency [8].…”

Section: Znse/zncdse Superlatticesmentioning

confidence: 74%

Optical studies of II–VI alloy lattice dynamics

Vodop’yanov

2004

Journal of Alloys and Compounds

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Section: Znse/zncdse Superlatticesmentioning

confidence: 74%

Optical studies of II–VI alloy lattice dynamics

Vodop’yanov

2004

Journal of Alloys and Compounds

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“…ZnSe, CdSe, and their alloys are direct, wide-band gap semiconductors commonly used in optoelectronics, and as biochemical detectors. Many ZnSe−CdSe heterostructures including quantum wells, quantum dots, and superlattices have been formed and studied. Although ZnSe, CdSe, and even ZnCdSe alloy nanowires and nanoribbons have also been fabricated recently, − 1D heterostructures of this system have rarely been .…”

Section: Introductionmentioning

confidence: 99%

Side-by-side ZnSe/ZnCdSe Bicrystalline Nanoribbons Prepared by a Two-Step Process

Liu¹,

Shan²,

Hark³

et al. 2007

J. Phys. Chem. C

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By a two-step method, side-by-side bicrystalline ZnSe/ZnCdSe nanoribbons were fabricated via metalorganic chemical vapor deposition. The nanoribbons were characterized by secondary and transmission electron microscopy, and energy dispersed X-ray spectroscopy. A good epitaxial relationship and a sharp interface exist between the two crystals, despite their different crystalline orientation and composition. The lattice mismatch induced strain is fully accommodated by bending. Two mechanisms, the vapor−liquid−solid mechanism and a subsequent asymmetric epitaxy, are involved in the growth of the bicrystals. Our results show that the two-step methods, which were commonly used to fabricate core−shell and axial heterostructures, can also yield bicrystals.

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