Using unbranched polyethyleneimine as a stabilizer, we have obtained colloidal aqueous solutions of ultrasmall (1.8-1.9 nm) CdSe particles, characterized by a narrow size distribution and photoluminescence in the visible region of the spectrum with quantum yields up to 12% and decay constants in the range 10-1 to 102 ns. A similar approach was used to obtain colloids of nanoparticles of a CdS x Se1–x solid solution with a tailored composition.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
J. R. McBride, A. D. Dukes III, M. A. Schreuder, and S. J. Rosenthal, Chem. Phys. Lett., 498, 1–9 (2010).
A. Rogach, N. Gaponik, J. M. Lupton, et al., Angew. Chem. Int. Ed., 47, No. 35, 6538–6549 (2008).
A. E. Raevskaya, G. Ya. Grodzyuk, A. L. Stroyuk, et al., Teor. Éksp. Khim., 46, No. 4, 225–229 (2010). [Theor. Exp. Chem., 46, No. 4, 233–238 (2010) (English translation).]
P. Pringsheim and M. Vogel, The Luminescence of Liquids and Solids and Their Practical Application [Russian translation], Gos. Izdat. Inostr. Lit., Moscow (1948).
C. de Mello Donegá and R. Koole, J. Phys. Chem. C, 113, 6511–6520 (2009).
C. A. Leatherdale, W.-K. Woo, F. V. Mikulec, and M. G. Bawendi, J. Phys. Chem. B, 106, No. 31, 7619–7622 (2002).
C. Liu, S.-Y. Chung, S. Lee, et al., J. Chem. Phys., 131, 174705 (2009).
S. K. Sarkar, N. Chandrasekharan, S. Gorer, and G. Hodes, Appl. Phys. Lett., 81, 5045–5050 (2002).
V. Dzhagan, O. Rayevska, O. Stroyuk, et al., Phys. Status Solidi (c), 6, 2043–2046 (2009).
V. M. Dzhagan, I. Lokteva, M. Ya. Valakh, et al., J. Appl. Phys., 106, 084318 (2009).
Yu. M. Azhniuk, A. G. Milekhin, A. V. Gomonnai, et al., J. Phys.: Condens. Matter, 16, 9069–9082 (2004).
D. Bersani and P. P. Loticci, Phys. Status Solidi (b), 174, No. 2, 575–582 (1992).
A. L. Raevskaya, A. L. Stroyuk, G. Ya. Grodzyuk, et al., Teor. Éksp. Khim., 46, No. 5, 265–270 (2010). [Theor. Exp. Chem., 46, No. 5, 273–278 (2010) (English translation).]
S. Pagliara, L. Sangaletti, L. E. Depero, et al., Appl. Surface Sci., 186, No. 1–4, 527–532 (2002).
Author information
Authors and Affiliations
Corresponding author
Additional information
Translated from Teoreticheskaya i Éksperimental’naya Khimiya, Vol. 46, No. 6, pp. 397–402, November-December, 2010.
This paper is dedicated to the 75th birthday of Academician V. D. Pokhodenko: a distinguished physical chemist who is responsible for the extensive development of a number of new scientific directions at the L. V. Pisarzhevskii Institute of Physical Chemistry (National Academy of Sciences of Ukraine), in particular study of photophysical, photochemical, and photocatalytic processes with participation of semiconductor nanoparticles, nanostructures and nanocomposites based on them.
Rights and permissions
About this article
Cite this article
Raevskaya, A.E., Grodzyuk, G.Y., Korzhak, A.V. et al. Preparation and optical properties of polyethyleneimine-stabilized colloidal CdSe and CdS x Se1–x quantum dots. Theor Exp Chem 46, 416–421 (2011). https://doi.org/10.1007/s11237-011-9173-2
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11237-011-9173-2