Growth kinetics of CdSe nanoparticles synthesized in reverse micelles using bis(trimethylsilyl) selenium precursor

• Autorzy: Saim Emin , Ceco Dushkin , Seiichiro Nakabayashi , Eiki Adachi
• Języki publikacji: EN

Abstrakty

EN

We first focus on the kinetics of nanoparticle growth in a microemulsion synthesis of CdSe semiconductor nanocrystals. The process consists of a fast initial stage of typical time constant of the order of 103 s followed by a slow stage of time constant of the order of 104s. Growth proceeds similarly to that described for the hot-matrix synthesis of CdSe, underlining the generality of the two-stage growth mechanism, irrespective of the matrix type and synthesis conditions. However, the time constant of each stage in the microemulsion synthesis is much larger than in the hot-matrix one. Also, the ratio between the fast and slow time constant is appreciably bigger. We also prove that larger size reverse micelles, obtained by increasing the water:surfactant ratio, generally lead to larger CdSe nanoparticles. Bis(trimethylsilyl) selenium is the crucial precursor for the CdSe nanoparticle synthesis. An intermediate stage of the chemical reaction limiting the bis(trimethylsilyl) selenium production is described theoretically. [...]

Słowa kluczowe

EN

CdSe nanoparticles; kinetics of growth; AOT microemulsion; bis(trimethylsilyl)selenium; NMR spectra; FTIR spectra

• Czasopismo: Open Chemistry
• Rocznik: 2007
• Tom: 5
• Numer: 2
• Strony: 590-604

Daty

wydano

2007-06-01

online

2007-06-01

Twórcy

autor

Saim Emin

autor

Ceco Dushkin

• Laboratory of Nanoparticle Science and Technology, Department of General and Inorganic Chemistry, Faculty of Chemistry, University of Sofia, Sofia, 1164, Bulgaria,

autor

Seiichiro Nakabayashi

• Department of Chemistry, Faculty of Science, Saitama University, Saitama, 338-8570, Japan

autor

Eiki Adachi

• Advanced Research Center, Nihon l’Oreal R&D Center, Takatsu-ku, Kawasaki, Kanagawa, 213-0012, Japan

Bibliografia

• [1] M.P. Pileni (Ed.): Structure and Reactivity of Reverse Micelles Elsevier, Amsterdam, 1989.
• [2] M.P. Pileni: “Reverse micelles as microreactors”, J. Phys. Chem., Vol. 97, (1993), pp. 6961–6973. http://dx.doi.org/10.1021/j100129a008[Crossref]
• [3] H. Weller, H.M. Schmidt, U. Koch, A. Fojtik, S. Baral, A. Henglein, W. Kunath and K. Weiss: “Photochemistry of colloidal semiconductors.Onset of light absorption as a function of size of extremely small CdS nanoparticles”, Chem. Phys. Lett., Vol. 124, (1986), pp. 557–560. http://dx.doi.org/10.1016/0009-2614(86)85075-8[Crossref]
• [4] P. Lianos and J.K. Thomas: “Cadmium sulfide of small dimensions produced in inverted micelles”, Chem. Phys. Lett., Vol.125, (1986), pp. 299–302. http://dx.doi.org/10.1016/0009-2614(86)87069-5[Crossref]
• [5] M. L. Steigerwald, A.P. Alivisatos, J.M. Gibson, T.D. Harris, R. Kortan, A.J. Muller, A.M. Thayer, T.M. Duncan, D.C. Douglass and L.E. Brus: “Surface derivatization and isolation of semiconductor cluster molecules”, J. Am. Chem. Soc., Vol. 110, (1988), pp. 3046–3050. http://dx.doi.org/10.1021/ja00218a008[Crossref]
• [6] P. Calandra, M. Goffredi and V. Turco Liveri: “Study of the growth of ZnS nanoparticles in water/AOT/n-heptane microemulsions by UV-absorption spectroscopy”, Col-loid Surfaces A Vol. 160, (1999), pp. 9–13. http://dx.doi.org/10.1016/S0927-7757(99)00256-3[Crossref]
• [7] G. Ilieva, K. Papazova, C. Dushkin and E. Adachi: “Aging effects in the microemulsion synthesis of ZnS nanoparticles”, Ann. Univ. Sofia Fac. Chim., Vol. 96, (2004), pp. 155–164.
• [8] L. Qi, J. Ma, H. Cheng and Z. Zhao: “Synthesis and characterization of mixed CdS-ZnS nanoparticles in reverse micelles”, Colloid Surfaces A Vol. 111, (1996), pp. 195–202. http://dx.doi.org/10.1016/0927-7757(96)03545-5[Crossref]
• [9] A.R. Loukanov, C.D. Dushkin, K.I. Papazova, A.V. Kirov, M.V. Abrashev and E. Adachi: “Photoluminescence depending on the ZnS shell thickness of CdS/ZnS core-shell semiconductor nanoparticles”, Colloid Surfaces A Vol. 245, (2004), pp. 9–14. http://dx.doi.org/10.1016/j.colsurfa.2004.06.016[Crossref]
• [10] C.B. Murray, D.J. Norris and M.G. Bawendi: “Synthesis and characterization of nearly monodisperse CdE (E=S,Se,Te)semiconductor nanocrystallites”, J. Am. Chem. Soc., Vol. 115, (1993), pp. 8706–9715. http://dx.doi.org/10.1021/ja00072a025[Crossref]
• [11] J.E. Bowen Katari, V.L. Colvin and A.P. Alivisatos: “X-ray photoelectron spectroscopy of CdSe nanocrystals with applications to studies of the nanocrystal surface”, J. Phys. Chem., Vol. 98, (1994), pp. 4109–4117. http://dx.doi.org/10.1021/j100066a034[Crossref]
• [12] G.G. Yordanov, C.D. Dushkin, G.D. Gicheva, B.H. Bochev and E. Adachi: “Synthesis of high-quality semiconductor nanoparticles in a composite hot-matrix”, Colloid Polymer Sci., Vol. 284, (2005), pp. 229–232. http://dx.doi.org/10.1007/s00396-005-1370-x[Crossref]
• [13] C.D. Dushkin, S. Saita, K. Yoshie and Y. Yamaguchi: “The kinetics of growth of semiconductor nanocrystals in a hot amphiphile matrix”, Adv. Colloid Interface Sci., Vol. 88, (2000), pp. 37–78. http://dx.doi.org/10.1016/S0001-8686(00)00040-3[Crossref]
• [14] S.M. Stuczynski, J.G. Brennan and M.L. Steigerwald: “Formation of metalchalcogen bonds by the reaction of metal alkyls with silyl chalcogenides”, Inorg. Chem., Vol. 28, (1989), pp. 4431–4432. http://dx.doi.org/10.1021/ic00324a001[Crossref]
• [15] G. Yordanov, C. Dushkin, B. Bochev, G. Gicheva and E. Adachi: “Preparation of dimethyl cadmium precursor for the hot-matrix synthesis of CdSe nanoparticles”, Ann. Univ. Sofia, Fac. Chim., Vol. 98-99, (2006), pp. 131–139 (English).
• [16] J.A. Gladysz, J.L. Hornby and J.E. Garbe: “A convenient one-fask synthesis of dialkyl selenides and diselenides via lithium triethylborohydride reduction of Sex”, J. Org. Chem., Vol. 43, (1978), pp. 1204–1208. http://dx.doi.org/10.1021/jo00400a040[Crossref]
• [17] M.R. Detty and M.D. Seidler: “Bis(trialkylsilyl)chalcogenides. 1. Preparation and reduction of group 6A oxides”, J. Org. Chem., Vol. 47, (1982), pp. 1354–1356. http://dx.doi.org/10.1021/jo00346a041
• [18] W.W. Yu, L. Qu, W. Guo and X. Peng: “Experimental determination of the size dependent extinction coefficients of high quality CdTe, CdSe and CdS nanocrystals”, Chem. Mater., Vol. 15, (2003), pp. 2854–2851. http://dx.doi.org/10.1021/cm034081k[Crossref]
• [19] C. Dushkin, K. Papazova, N. Dushkina and E. Adadchi: “Attenuated quantum confinement of the exciton in semiconductor nanoparticles”, Colloid Polymer Sci., Vol. 284, (2005), pp. 80–85. http://dx.doi.org/10.1007/s00396-005-1327-0[Crossref]
• [20] H. Duddeck: “Selenium-77 Nuclear Magnetic Resonance Spectroscopy”, In: Progress in NMR Spectroscopy, Vol. 127, Elsevier, Oxford, 1995, pp. 1–323.
• [21] K. Hamada and H. Morishita: “Raman,infrared and 1H-NMR spectra of hexamethyldisilylchalcogenides”, Spectr. Lett., Vol. 19, (1986), pp. 815–826.
• [22] K. Suzuki, K. Harada and M. Shioi: “Growth mechanism of cadmium sulfide ultrafine particles in water-in-oil microemulsion”, J. Chem. Eng. Jpn., Vol. 29, (1996), pp. 264–276. http://dx.doi.org/10.1252/jcej.29.264[Crossref]
• [23] A. Bhakta and E. Ruckenstein: “Ostwald ripening:a stochastic approach”, J. Chem. Phys., Vol. 103, (1995), pp. 7120–7131. http://dx.doi.org/10.1063/1.470341[Crossref]
• [24] I. Stoychev: Microemulsion synthesis of CdS nanoparticles, Thesis (Master), University of Sofia, Sofia, 2003 (in Bulgarian).
• [25] S. Emin, T. Fujita, M. Nawa, S. Nakabayashi, E. Adachi and C. Dushkin: “Semiconductor core/polymer shell nanoparticles”, In: E. Balabanova and I. Dragieva (Eds.): Nanoscience and Nanotechnology, Vol. 3, Heron Press, Sofia, 2003, pp. 165–168.
• [26] S. Emin, C. Papazova, C. Dushkin, D. Mladenova and E. Adachi: “Synthesis of water dispersible semiconductor nanoparticles using bis(trimethyldisilyl)sulfide”, In: E. Balabanova and I. Dragieva (Eds.): Nanoscience and Nanotechnology, Vol. 4, Heron Press, Sofia, 2004, pp. 58–61.

Identyfikatory

DOI

10.2478/s11532-007-0018-8