Abstract
The resonance Raman scattering of light in MBE-grown structures with ZnSe nanowires (10–20 nm in diameter) with an Au film deposited on the substrate used as a catalyst was investigated. The thicknesses of the Au layers were 2, 10, and 100 Å. The photon energy of the He-Cd pump laser (λ = 441.6 nm) was in excess of the band gap of bulk ZnSe, and the measurements were conducted at room temperature. Under these conditions, the Raman spectra are defined by a cascade process in which the electron interacting with a longitudinal optical phonon transfers between real band states with a certain probability of radiative recombination at each step. The blue shift of the luminescence maximum associated with the quantum confinement of carriers in the nanowire has been observed. The average nanowire diameter derived from the magnitude of this shift agrees well with electron microscopy measurements.
Similar content being viewed by others
References
S. Ramanathan, S. Patibandla, S. Bandyopadhyay, J. Anderson, and J. D. Edwards, Nanotechnology 19, 195601 (2008).
J. W. Brown and H. N. Spector, Phys. Rev. B: Condens. Matter 35, 3009 (1987).
Yia-Chung Chang, L. L. Chang, and L. Esaki, Appl. Phys. Lett. 47, 1324 (1985).
A. Colli, S. Hofmann, C. Ferrari, C. Ducati, F. Martilli, S. Rubini, S. Carbini, A. Franciosi, and J. Robertson, Appl. Phys. Lett. 86, 153103 (2005).
G. Karzewski, S. Mahapatra, T. Borzenko, P. Dluzewski, S. Kret, L. Klopotowski, C. Schumacher, K. Brunner, L.W. Molenkamp, and T. Wojtowicz, in Proceedings of the 28th International Conference on the Physics of Semiconductors (ICPS-2006), Vienna, Austria, 2006, Ed. by W. Jantsch and F. Schaffler (AIP Conf. Proc. 893, 65 (2007)).
S. K. Chan, Y. Cai, N. Wang, and I. K. Sou, J. Cryst. Growth 301–302, 866 (2007).
Y. Ohno, T. Shirahma, S. Takeda, A. Ishizumi, and Y. Kanemitsu, Solid State Commun. 141, 228 (2007).
R. M. Martin and C. M. Varma, Phys. Rev. Lett. 26, 1241 (1971).
N. N. Melnik, Yu. G. Sadofyev, T. N. Zavaritskaya, and L. K. Vodop’yanov, Nanotechnology 11, 252 (2000).
I. V. Kucherenko, V. S. Vinogradov, G. Karczewski, N. N. Novikova, M. Cestelli Guidi, and M. Piccinini, Fiz. Tverd. Tela (St. Petersburg) 49(8), 1488 (2007) [Phys. Solid State 49 (8), 1563 (2007)].
A. B. Panda, S. Acharya, and Sh. Efrima, Adv. Mater. 17, 2471 (2005).
C. A. Smith, H. W. H. Lee, V. J. Leppert, and S. H. Risbud, Appl. Phys. Lett. 75, 1688 (1999).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © N.N. Mel’nik, V.S. Vinogradov, I.V. Kucherenko, G. Karczewski, O.S. Plyashechnik, 2009, published in Fizika Tverdogo Tela, 2009, Vol. 51, No. 4, pp. 787–990.
Rights and permissions
About this article
Cite this article
Mel’nik, N.N., Vinogradov, V.S., Kucherenko, I.V. et al. Cascade processes in inelastic light scattering in ZnSe nanowire structures. Phys. Solid State 51, 833–836 (2009). https://doi.org/10.1134/S1063783409040337
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063783409040337