Abstract
Cadmium chalcogenide semiconductor quantum dots, especially doped nanoclusters, have attracted great attention for their effects on photo generated carriers and their lifetime due to introduced trapping states by changing surface unbonded orbitals. Here, we investigate the adsorption of Ag on “magic-sized” cadmium chalcogenide (CdTe)13 core-cage nanoclusters, Cd13Te13Ag, by first-principles density functional theory. All possible adsorption sites, top, bridge, and hollow sites, have been considered. Particular attention is paid to the energy band structures of Cd13Te13Ag. The study demonstrates that the hollow sites, the centers of hexagons, are the favorite Ag adsorption sites. Unlike observed shallow acceptor level of doped QDs, two unusual deep mid-gap states with different spins, spin up and spin down, are observed. These two deep states shift with Ag moving towards the core of cage. The detail properties of adsorption configurations and these two deep states are analyzed. These two deep states should have important role to their optical applications.
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A. Stavrinadis, A. K. Rath, F. P. García de Arquer, S. L. Diedenhofen, C. Magén, L. Martinez, D. So, and G. Konstantatos (2013). Nat. Commun. 4, 2981.
W. Koh, A. Y. Koposov, J. T. Stewart, B. N. Pal, I. Robel, J. M. Pietryga, and V. I. Klimov (2013). Sci. Rep. 3, 2004.
Z. Ning, D. Zhitomirsky, V. Adinolfi, B. Sutherland, J. Xu, O. Voznyy, P. Maraghechi, X. Lan, S. Hoogland, Y. Ren, and E. H. Sargent (2013). Adv. Mater. 25, 1719.
S. Roy, C. Tuinenga, F. Fungura, P. Dagtepe, J. Jasinski, and V. Chikan (2009). J. Phys. Chem. C 113, 13008.
C. Tuinenga, J. Jasinski, V. J. Leppert, T. Iwamoto, and V. Chikan (2008). ACS Nano. 2, 1411.
D. Mocatta, G. Cohen, J. Schattner, O. Millo, E. Rabani, and U. Banin (2011). Science 332, 77.
C. Echeverría-Arrondo, J. Pérez-Conde, and A. Ayuela (2009). Phys. Rev. B 79, 155319.
P. Schapotschnikow, B. Hommersom, and T. J. H. Vlugt (2009). J. Phys. Chem. C 113, 12690.
V. Proshchenko and Y. Dahnovsky (2015). Chem. Phys. 461, 58.
L. Nahar, R. J. A. Esteves, S. Hafiz, U. Ozgur, and I. U. Arachchige (2015). ACS Nano 9, 9810.
E. Shaviv and U. Banin (2010). ACS Nano 4, 1529.
C. Barglik-Chory, C. Remenyi, C. Dem, M. Schmitt, W. Kiefer, C. Gould, C. Rüster, G. Schmidt, D. M. Hofmann, D. Pfisterer, and G. Müller (2003). Phys. Chem. Chem. Phys. 5, 1639.
N. Pradhan and D. D. Sarma (2011). J. Phys. Chem. Lett. 2, 2818.
P. J. Whitham, K. E. Knowles, P. J. Reid, and D. R. Gamelin (2015). Nano Lett. 5, 4045.
S. M. Harrell, J. R. McBride, and S. J. Rosenthal (2013). Chem. Mater. 25, 1199.
P. Hohenberg and W. Kohn (1964). Phys. Rev. B 136, 864.
W. Kohn and L. J. Sham (1965). Phys. Rev. 140, A1133.
B. Delley (1990). J. Chem. Phys. 92, 508.
J. P. Perdew, K. Burke, and M. Ernzerhof (1996). Phys. Rev. Lett. 77, 3865.
B. Delley (1996). J. Phys. Chem. 100, 6104.
B. Delley (2000). J. Chem. Phys. 113, 7756.
J. G. Wang, L. Ma, J. J. Zhao, and K. A. Jackson (2009). J. Chem. Phys. 130, 214307.
Z. Wu, Y. Zhang, S. Huang, and S. Zhang (2013). Comput. Mater. Sci. 68, 238.
Y. Zhang, X. Zheng, S. Zhang, S. Huang, P. Wang, and H. Tian (2012). Int. J. Hydrog. Energy 37, 12411.
S. Kr and A. Kshirsagar Bhattacharya (2011). Eur. Phys. J. D 61, 609.
K. T. Chan, J. B. Neaton, and M. L. Cohen (2008). Phys. Rev. B 77, 235430.
P. Nagpal and V. I. Klimov (2011). Nat. Commun. 2, 486.
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This work was supported by the National Natural Science Foundation of China (21376013). This paper is supported by “Chemical Grid Project” of Beijing University of Chemical Technology.
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Zhang, Y., Guo, Q., Huang, S. et al. The Adsorption of Ag on (CdTe)13 Core-Cage Nanocluster: A Computational Study. J Clust Sci 27, 1057–1066 (2016). https://doi.org/10.1007/s10876-016-0992-0
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DOI: https://doi.org/10.1007/s10876-016-0992-0