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Synthesis of water-soluble PbSe quantum dots

Published online by Cambridge University Press:  31 January 2011

Lioz Etgar ,
Efrat Lifshitz  and
Rina Tannenbaum
Lioz Etgar*
Affiliation:
Nanoscience and Nanotechnology, Technion, Israel Institute of Technology, Haifa 32000, Israel
Efrat Lifshitz
Affiliation:
Chemistry, Technion, Israel Institute of Technology, Haifa 32000, Israel
Rina Tannenbaum
Affiliation:
Chemical Engineering, Technion, Israel Institute of Technology, Haifa 32000, Israel; and School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332
*
a)Address all correspondence to this author. e-mail: liozet@tx.technion.ac.il
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Abstract

Water-soluble PbSe semiconductor quantum dots (QDs) with near-infrared absorption of 1100–2520 nm (corresponding to a diameter of 3–13 nm) were synthesized using 2-aminoethanthiol (AET). The oleic acid-stabilizing ligands used in the traditional synthesis of PbSe were exchanged with the 2-AET ligands, which promoted the solubilization of the QDs in an aqueous medium. This occurred due to the attraction of the surrounding water molecules to the exposed amino group, thus allowing the particles to reside in the water environment. The water-soluble PbSe QDs have very narrow size distribution (σ ≈ 4.5–5.5%). Transmission electron microscopy, spectrophotometric measurements, and Fourier transform infrared spectroscopy indicate that the morphology, size, size distribution, and chemical composition of the PbSe QDs remained unchanged during the transfer to an aqueous medium. In conclusion, the ability to synthesize water-soluble PbSe QDs with stable properties and uniform size distribution will allow them to have substantial advantages for biological applications such as biosensors and drug delivery.

Keywords

Chemical synthesisNanostructureSelf-assembly
Type
Articles
Information
Journal of Materials Research , Volume 23 , Issue 4 , April 2008 , pp. 899 - 903
Copyright
Copyright © Materials Research Society 2008

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References

REFERENCES

1Craighead, H.G.: Nanoelectromechanical systems. Science 290, 1532 2000CrossRefGoogle ScholarPubMed
2Gittins, D.I.Caruso, F.: Spontaneous phase transfer of nanoparticulate metals from organic to aqueous media. Angew. Chem., Int. Ed. Engl. 40(16), 3001 2001Google Scholar
3Henglein, A.: Small-particle research: Pphysicochemical properties of extremely small colloidal metal and semiconductor particles. Chem. Rev. 89, 1861 1989Google Scholar
4Alivisatos, A.P.: Perspectives on the physical chemistry of semiconductor nanocrystals. J. Phys. Chem. 100, 13226 1996Google Scholar
5Kagan, C.R., Murray, C.B.Bawendi, M.G.: Long-range resonance transfer of electronic excitations in close-packed CdSe quantum-dot solids. Phys. Rev. B: Condens. Matter 54, 8633 1996Google Scholar
6Nirmal, M.Brus, L.: Luminescence photophysics in semiconductor nanocrystals. Acc. Chem. Res. 32, 407 1999Google Scholar
7Hines, M.A.Guyot-Sionnest, P.: Synthesis and characterization of strongly luminescing ZnS-capped CdSe nanocrystals. J. Phys. Chem. 100, 468 1996Google Scholar
8Peng, X., Schlamp, M.C., Kadavanich, A.V.Alivisatos, A.P.: Epitaxial growth of highly luminescent CdSe/CdS Core/shell nanocrystals with photostability and electronic accessibility. J. Am. Chem. Soc. 119, 7019 1997Google Scholar
9Dabbousi, B.O., Rodriguez-Viejo, J., Mikulec, F.V., Heine, J.R., Mattoussi, H., Ober, R., Jensen, K.F.Bawendi, M.G.: (CdSe)ZnS core-shell quantum dots: Synthesis and characterization of a size series of highly luminescent nanocrystallites. J. Phys. Chem. B 101, 9463 1997Google Scholar
10Talapin, D.V., Rogach, A.L., Kornowski, A., Haase, M.Weller, H.: Highly luminescent monodisperse CdSe and CdSe/ZnS nanocrystals synthesized in a hexadecylamine-trioctylphosphine oxide-trioctylphosphine mixture. Nano Lett. 1, 207 2001Google Scholar
11Peng, Z.A.Peng, X.J.: Formation of high-quality CdTe, CdSe, and CdS nanocrystals using CdO as precursor. J. Am. Chem. Soc. 123, 183 2001Google Scholar
12Zhong, X., Han, M., Dong, Z., White, T.J.Knoll, W.: Composition-tunable ZnxCd1–xSe nanocrystals with high luminescence and stability. J. Am. Chem. Soc. 125, 8589 2003Google Scholar
13Gao, M.Y., Kirstein, S., Möhwald, H., Rogach, A.L., Kornowski, A., Eychmuller, A.Weller, H.: Thiol-capped CdSe and CdTe nanoclusters: Synthesis by a wet chemical route, structural and optical properties. J. Phys. Chem. B 102, 8360 1998CrossRefGoogle Scholar
14Bao, H., Gong, Y., Li, Z.Gao, M.: Enhancement effect of illumination on the photoluminescence of water-soluble CdTe nanocrystals: Toward highly fluorescent CdTe/CdS core-shell structure. Chem. Mater. 16(20), 3853 2004CrossRefGoogle Scholar
15Turkevich, J., Stevenson, P.C.Hillier, J.: A study of the nucleation and growth processes in the synthesis of colloidal gold. Discuss. Faraday Soc.,55 11 1951Google Scholar
16Goia, D.V.Matijevic, E.: Preparation of monodispersed metal particles. N. J. Chem. 22, 1203 1998CrossRefGoogle Scholar
17Bönnemann, H.Brijoux, W.: Advanced catalysts and nanostructured materials in Modern Synthetic Methods, edited by W. Moser Academic Press New York 1996 165Google Scholar
18Green, M.O’Brien, P.: Recent advances in the preparation of semiconductors as isolated nanometric particles: New routes to quantum dots. Chem. Commun.,2235 1999CrossRefGoogle Scholar
19Pileni, M.P.: Optical properties of nanosized particles dispersed in colloidal solutions or arranged in 2D or 3D superlattices. N. J. Chem. 22, 693 1998Google Scholar
20Hinds, S., Myrskog, S., Levina, L., Koleilat, G., Yang, J., Kelley, S.O.Sargent, E.H.: NIR-emitting colloidal quantum dots having 26% luminescence quantum yield in buffer solution. J. Am. Chem. Soc. 129(23), 7218 2007Google Scholar
21Yu, W.W., Falkner, J.C., Shih, B.S.Colvin, V.L.: Preparation and characterization of monodisperse PbSe semiconductor nanocrystals in a noncoordinating solvent. Chem. Mater. 16(17), 3318 2004Google Scholar
22Hyun, B-R., Chen, H., Rey, D.A., Wise, F.W.Batt, C.A.: Near-infrared fluorescence imaging with water-soluble lead salt quantum dots. J. Phys. Chem. B 111(20), 5726 2007Google Scholar
23Murray, C.B., Sun, S., Gaschler, W., Doyle, H., Betley, T.A.Kagan, C.R.: Colloidal Synthesis of nanocrystals and nanocrystal superlattices. IBM J. Res. Dev. 45>(47) 2001Google Scholar
24Wise, F.W.: Lead salt quantum dots: The limit of strong quantum confinement. Acc. Chem. Res. 33, 773 2000Google Scholar
25Xu, J., Ge, J-P.Li, Y-D.: Solvothermal synthesis of monodisperse PbSe nanocrystals. J. Phys. Chem. B 110, 2497 2006Google Scholar
26Brumer, M., Kigel, A., Amirav, L., Sashchiuk, A., Solomesch, O., Tessler, N.Lifshitz, E.: PbSe/PbS and PbSe/PbSexS1-x core/shell nanocrystals. Adv. Func. Mater. 15(7), 1111 2005Google Scholar
27Park, S-K., Park, Y-K., Park, S-E.Kevan, L.: Comparison of selective catalytic reduction of NO with C3H6 and C3H8 over Cu(II)-ZSM-5 and Co(II)-ZSM-5. Phys. Chem. Chem. Phys. 2(23), 5500 2000Google Scholar
28Smith, A.L.: Applied Infrared Spectroscopy Wiley New York 1979 286–314Google Scholar
29Nakamoto, K.: Infrared and Raman Spectra of Co-ordination Compounds Wiley New York 1986 371–409Google Scholar