Hostname: page-component-78c5997874-fbnjt Total loading time: 0 Render date: 2024-11-14T22:56:46.829Z Has data issue: false hasContentIssue false
  • English
  • Français

Homogeneous precipitation of doped zinc sulfide nanocrystals for photonic applications

Published online by Cambridge University Press:  03 March 2011

D. Gallagher ,
W.E. Héady ,
J.M. Racz  and
R.N. Bhargava
D. Gallagher
Affiliation:
Philips Laboratories, Philips Electronics North America Corporation, 345 Scarborough Road, Briarcliff Manor, New York 10510-2099
W.E. Héady
Affiliation:
Philips Laboratories, Philips Electronics North America Corporation, 345 Scarborough Road, Briarcliff Manor, New York 10510-2099
J.M. Racz
Affiliation:
Philips Laboratories, Philips Electronics North America Corporation, 345 Scarborough Road, Briarcliff Manor, New York 10510-2099
R.N. Bhargava*
Affiliation:
Philips Laboratories, Philips Electronics North America Corporation, 345 Scarborough Road, Briarcliff Manor, New York 10510-2099
*
a)Present address: Nanocrystals Technology, P. O. Box 820, Briarcliff Manor, New York 10510.
Get access

Abstract

A process was developed to prepare nanocrystalline and quantum-confined particles of manganese-doped zinc sulfide. By the reaction of diethylzinc with solubilized hydrogen sulfide, particle sizes of 30–36 Å were achieved by control of reactant concentration, and size appeared to vary with the thermodynamic considerations indicative of homogeneous precipitation. Managanese doping required the development of an in situ chemical reaction compatible with the homogeneous precipitation reaction. To that end, ethylmagnesium chloride was reacted with manganese chloride to form the metastable diethylmanganese which acted as the dopant source. Quantum confinement of the particles was accomplished by using methacrylic acid and poly(methyl methacrylate) polymer of low molecular weights. These surfactants were transparent to the ultraviolet wavclcngths of light which allowed luminescent excitation of the material and provided surface passivation which enhanced phosphor brightness. The surfactant adsorption and effect of ultraviolet curing of the surfactant on the luminescent efficiency of the doped nanocrystals was investigated by infrared spectroscopy. These results indicate that the chemisorption of the surfactants to the nanoparticle surface and oxidation followed by crosslinking during curing are responsible for the improvement in luminescent efficiency.

Type
Articles
Information
Journal of Materials Research , Volume 10 , Issue 4 , April 1995 , pp. 870 - 876
Copyright
Copyright © Materials Research Society 1995

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1Efros, Al. L. and Efros, A. L., Sov. Phys. Semicond. 16, 772 (1982).Google Scholar
2Brus, L., J. Phys. Chem. 90, 2555 (1986).CrossRefGoogle Scholar
3Steigerwald, M. L. and Brus, L. E., Ann. Rev. Mater. Sci. 19, 471 (1989).CrossRefGoogle Scholar
4Henglein, A., Top. Curr. Chem. 143, 113 (1988).CrossRefGoogle Scholar
5Wang, Y. and Herron, N., J. Phys. Chem. 95, 525 (1991), and references cited therein.CrossRefGoogle Scholar
6Bhargava, R. N., Gallagher, D., and Welker, T., J. Lumin. 60 & 61, 275 (1994).CrossRefGoogle Scholar
7Bhargava, R. N., Gallagher, D., Hong, X., and Nurmikko, A., Phys. Rev. Lett. 72, 416 (1994).CrossRefGoogle Scholar
8Brus, L., J. Quant. Electronics QE–22, 1909 (1986).CrossRefGoogle Scholar
9Gumlich, H. E., J. Lumin. 23, 73 (1981).CrossRefGoogle Scholar
10Weller, H., Koch, U., Gutiérrez, M., and Henglein, A., Ber. Bunsenges. Phys. Chem. 88, 694 (1984).CrossRefGoogle Scholar
11Rossetti, R., Hull, R., Gibson, J. M., and Brus, L. E., J. Chem. Phys. 82, 552 (1985).CrossRefGoogle Scholar
12Wang, Y., Herron, N., Moller, K., and Bein, T., Solid State Commun. 77, 33 (1991).CrossRefGoogle Scholar
13Gallagher, D., Heady, W. E., Racz, J. M., and Bhargava, R. N., J. Cryst. Growth 138, 970 (1994).CrossRefGoogle Scholar
14Johnson, C. E., Hickey, D. K., and Harris, D. C., in Better Ceramics Through Chemistry II, edited by Brinker, C. J., Clark, D. E., and Ulrich, D. R. (Mater. Res. Soc. Symp. Proc. 73, Pittsburgh, PA, 1986), pp. 785–789.Google Scholar
15Solubilities of Inorganic and Metal Organic Compounds, edited by Linke, W. F. (D. Van Nostrand Co., Princeton, NJ, 1958), p. 1157.Google Scholar
16CRC Handbook of Chemistry and Physics, 65th ed., edited by Weast, R. C. (CRC Press, Boca Raton, FL, 1984), pp. D216–219.Google Scholar
17Yamamoto, T. and Taniguchi, A., Inorganic Chimica Acta 97, Lll (1985).CrossRefGoogle Scholar
18Celikkaya, A. and Akinc, M., J. Am. Ceram. Soc. 73, 2360 (1990), and references therein.CrossRefGoogle Scholar
19Chou, K-S., J. Am. Ceram. Soc. 74, 1472 (1991).CrossRefGoogle Scholar
20Cotton, F. A. and Wilkinson, G., Advanced Inorganic Chemistry (John Wiley & Sons, New York, 1988), p. 700.Google Scholar
21Tamura, M. and Kochi, J., J. Organometal. Chem. 29, 111 (1971).CrossRefGoogle Scholar
22Soo, Y. L., Ming, Z. H., Huang, S. W., Kao, Y. H., Bhargava, R. N., and Gallagher, D., Phys. Rev. B 50, 7602 (1994).CrossRefGoogle Scholar
23Busse, W., Gumlich, H. E., Meissner, B., and Theis, D., J. Lumin. 12/13, 693 (1976).CrossRefGoogle Scholar
24Allara, D. L., Wang, Z., and Pantano, C. G., J. Non-Cryst. Solids 120, 93 (1990).CrossRefGoogle Scholar
25Carter, A. C. and Majetich, S. A., in Nanophase and Nanocomposite Materials, edited by Komarneni, S., Parker, J. C., and Thomas, G. J. (Mater. Res. Soc. Symp. Proc. 286, Pittsburgh, PA, 1993), pp. 81–85.Google Scholar
26Kirk-Othmer Encylopedia of Chemical Technology, 3rd ed., Vol. 15, Methacrylic polymers (John Wiley, New York), p. 384.Google Scholar
27Silverstein, R. M., Bassler, G. C., and Morrill, T. C., Spectrometric Identification of Organic Compounds, 4th ed. (John Wiley & Sons, New York, 1981), p. 123.Google Scholar