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Kinetic and spectroscopic properties of small colloids of metal iodide semiconductors

  • O. I. Micic
  • M. T. Nenadovic
  • T. Rajh
  • J. M. Nedeljkovic
  • M. I. Vucemilovic
Colloids
Part of the Progress in Colloid & Polymer Science book series (PROGCOLLOID, volume 76)

Abstract

Small colloidal HgI2, PbI2 and AgI particles (with particle diameters in the range 20–50 Å), were prepared in water and acetonitrile, and optical effects due to size quantization were observed. A simple method for the preparation of colloids was used to avoid the possibility of the formation of complexes or other conflicting absorbing species in solution. Colloids of HgI2 were prepared by simple agglomeration of HgI2 monomeric molecules. The PbI2 colloid formation in the solution of crystalline powder dissolved in acetonitrile was studied as well. Small colloids of AgI were prepared by reaction of silver salt with iodide in stochiometric ratio. AgI colloids were also incorporated in transparent silicate glass. Electron transfer reactions from electron donors to AgI particles in aqueous solutions were studied by pulse radiolysis technique.

Key words

Quantization effect metal iodide absorption spectra electron adduct 

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References

  1. 1.
    Albery WJ, Brown GT, Darwent JR, Saievar-Iranizad E (1985) J Chem Soc Faraday Trans 1 81:1999CrossRefGoogle Scholar
  2. 2.
    Balchin AA (1980) In: Levy I (ed) Crystallography and Crystal Chemistry of Materials with Layered Structures, Vol 2. D Reidel Pub Co, Dorderecht, p 31Google Scholar
  3. 3.
    Baral S, Fojtik A, Weller H, Henglein A (1986) J Am Chem Soc 108:375CrossRefGoogle Scholar
  4. 4.
    Bedikyan LD, Miloslavskii VK, Ageev A (1979) Opt Spectros 47:225Google Scholar
  5. 5.
    Berry CR (1967) Phys Rev 161:611CrossRefGoogle Scholar
  6. 6.
    Brus LE (1986) J Phys Chem 90:2555 and references thereinCrossRefGoogle Scholar
  7. 7.
    Burstein E (1954) Phys Rev 93:632CrossRefGoogle Scholar
  8. 8.
    DiSalvo FJ (1974) In: Timmerhaus KD, Sullivan WJ, Hammel EF (eds) Low Temperature Physics LT-13, Vol 3. PLenum Press, New York, p 417Google Scholar
  9. 9.
    Fojtik A, Weller H, Koch V, Henglein A (1984) Ber Bunsenges Phys Chem 88:649Google Scholar
  10. 10.
    Griffiths TR, Anderson RA (1979) J Chem Soc, Faraday Trans 2, 75:957 and references thereinCrossRefGoogle Scholar
  11. 11.
    Harbeke G, Tossani E (1975) RCA Rev 36:40Google Scholar
  12. 12.
    Henglein A (1983) In: Baxendale Memorial Symposium, Consiglio Nazionale delle Richerche, Instituto di Fotochimica e Radiazioni’ Alta Energia, Centro Stampa, Lo Scarabeo, Bologna, pp 43–58Google Scholar
  13. 13.
    Henglein A, Kumar A, Janata E, Weller H (1986) Chem Phys Lett 132:133CrossRefGoogle Scholar
  14. 14.
    Johnston FJ (1978) Rad Res 75:286CrossRefGoogle Scholar
  15. 15.
    Kamat PV, Dimitrijevic NM, Fessender RW (1987) J Phys Chem 91:396CrossRefGoogle Scholar
  16. 16.
    Micic OI, Nenadovic MT, Peterson MW, Nozik AJ (1987) J Phys Chem 91:1295CrossRefGoogle Scholar
  17. 17.
    Micic OI, Zongguan L, Mills G, Sullivan JC, Meisel D (1987) J Phys Chem, in pressGoogle Scholar
  18. 18.
    Nenadovic MT, Rajh T, Herak R, Micic OI, Paterson MW, Nozik AJ (1988) J Phys Chem 92:1400CrossRefGoogle Scholar
  19. 19.
    Nozik AJ, Williams F, nenadovic MT, Rajh T, Micic OI (1985) J Phys Chem 89:397CrossRefGoogle Scholar
  20. 20.
    Peterson MW, Micic OI, Nozik AJ (1988)J Phys Chem, to be publishedGoogle Scholar
  21. 21.
    Rajh T, Peterson MW, Turner JA, Nozik AJ (1984) J Electroanal Chem 228:55CrossRefGoogle Scholar
  22. 22.
    Rajh T, Vucemilovic MI, Dimitrijevic NM, Micic OI (1988) Chem Phys Lett 143(3):305CrossRefGoogle Scholar
  23. 23.
    Rossetti R, Nakahara S, Brus LE (1983) J Chem Phys 79:1096CrossRefGoogle Scholar
  24. 24.
    Sandroff CJ, Hwang DM, Chung WM (1986) Phys Rev B 33:5953CrossRefGoogle Scholar
  25. 25.
    Sandroff CJ, Kelty SP, Hwang DM (1986) J Chem Phys 85:5337CrossRefGoogle Scholar
  26. 26.
    Tanaka T, Saigo H, Matsubara TJ (1982) PHotogr Sci 26:92Google Scholar
  27. 27.
    Van Olphen H (1977) An Introduction to Clay Colloid Chemistry. J Wiley, New YorkGoogle Scholar
  28. 28.
    Wang Y, Herron N (1987) J Phys Chem 91:5005CrossRefGoogle Scholar

Copyright information

© Dr. Dietrich Steinkopff Verlag GmbH & Co. KG 1988

Authors and Affiliations

  • O. I. Micic
    • 1
  • M. T. Nenadovic
    • 1
  • T. Rajh
    • 1
  • J. M. Nedeljkovic
    • 1
  • M. I. Vucemilovic
    • 1
  1. 1.Boris Kidric Institute of Nuclear Science VincaBelgradeYugoslawia

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