The synthesis of cadmium phosphide nanoparticles using cadmium diorganophosphide precursors

Abstract

An investigation into the thermolysis of diorganophoshides in co-ordinating Lewis base solvents has revealed the importance of not only reaction conditions such as time and temperature, but also the importance of organic groups on the precursor. Nanoparticles of Cd₃P₂ have been synthesised using compounds such as [MeCd(PBu^t₂)]₃ in tri-n-octylphosphine oxide (TOPO) and 4-ethylpyridine at elevated temperatures. Distinct optical characteristics of quantum confinement effects are observed as the particle's dimensions decrease below the excitonic radius of 180 Å.

References

1. M. L. Steigerwald and L. E. Brus, Acc. Chem. Res., 1990, 23, 1834.
2. H. Weller, Adv. Mater., 1993, 5, 88.
3. A. P. Alivisatos, Science, 1996, 271, 933.
4. D. R. Lide, CRC Handbook of Chemistry and Physics, 73rd edition, section 12–82, 1993, CRC Press, Boca Raton.
5. S. Taucha, MRS Bull., 1998, 23, 49.
6. L. Brus, J. Phys. Chem., 1986, 90, 2555.
7. R. Rosetti, J. L. Ellison, J. M. Gibson and L. E. Brus, J. Phys. Chem., 1984, 80, 4464.
8. S. M. Stuczynski, J. G. Brennan and M. L. Steigerwald, Inorg. Chem., 1989, 28, 4431.
9. E. Matijevic, Ann. Rev. Mater. Sci, 1985, 15, 483.
10. M. Gao, B. Richter and S. Kirstein, Adv. Mater., 1997, 10, 802.
11. M. Schlamp, X. Peng and A. P. Alivisatos, J. Appl. Phys., 1997, 82, 5837.
12. V. L. Colvin, M. C. Schlamp and A. P. Alivisatos, Nature, 1994, 370, 354.
13. M. Burt, Br. Telecommun. Eng., 1996, 15, 230.
14. L. Spanhel, M. Haase, H. Weller and A. Henglein, J. Am. Chem. Soc., 1987, 109, 5649.
15. C. B. Murray, D. J. Norris and M. G. Bawendi, J. Am. Chem. Soc., 1993, 115, 8706.
16. A. A. Guzelian, U. Banin, A. V. Kadavanich, X. Peng and A. P. Alivisatos, Appl. Phys. Lett., 1996, 69, 1432.
17. J. E. Bowen Katari, V. L. Colvin and A. P. Alivisatos, J. Phys. Chem., 1994, 98, 4109.
18. T. Trindade and P. O'Brien, Adv. Mater., 1996, 8, 161.
19. T. Trindade and P. O'Brien, J. Mater. Chem., 1996, 6, 343.
20. A. R. Kortan, R. Hull, R. L. Opila, M. G. Bawendi, M. L. Steigerwald, P. J. Carrol and L. E. Brus, J. Am. Chem. Soc., 1990, 112, 1327.
21. W. Mahler, Inorg. Chem., 1988, 112, 6858.
22. Y. Wang and N. Herron, J. Phys. Chem., 1987, 91, 257.
23. A. Henglein, Chem. Rev., 1989, 89, 1861.
24. A. Henglein, Top. Curr. Chem., 1988, 143, 113.
25. H. Uchida, T. Matsunaga, H. Yoneyama, T. Sakata, H. Mori and T. Sasaki, Chem. Mater., 1993, 5, 716.
26. M. Nirmal, D. J. Norris, M. Kuno, M. G. Bawendi, A. L. Efros and M. Rosen, Phys. Rev. Lett., 1995, 75, 3728.
27. M. Nirmal, C. B. Murray, D. J. Norris and M. G. Bawendi, Z. Phys. D, 1993, 361.
28. A. A. Guzelian, J. E. B. Katari, U. Banin, A. V. Kadavanich, X. Peng, A. P. Alivisatos, K. Hamed, E. Juban, R. H. Wolters, C. C. Arnold and J. R. Heath, J. Phys. Chem., 1996, 100, 7212.
29. J. R. Heath and J. J. Shiang, Chem. Soc. Rev., 1998, 27, 65.
30. A. Kornowski, R. Eichberger, M. Giersig, H. Weller and A. Eychmuller, J. Phys. Chem., 1996, 10, 12467.
31. M. Green and P. O'Brien, Adv. Mater., 1998, 10, 527.
32. W. E. Buhro, Polyhedron, 1994, 13, 1131.
33. H. Weller, A. Fojtik and A. Henglein, Chem. Phys. Lett., 1985, 117, 485.
34. M. A. Matchett, A. M. Viano, N. L. Adolphi, R. D. Stoddard, W. E. Buhro, M. S. Conradi and P. C. Gibbons, Chem. Mater., 1992, 4, 508.
35. K. Issleib and H. O. Froelich, Chem. Ber, 1962, 95, 375.
36. A. M. Arif, A. H. Cowley, R. A. Jones and S. U. Koschmieder, J. Chem. Soc., Chem. Commun., 1987, 1319.
37. A. M. Arif, B. L. Benac, A. H. Cowley, R. A. Jones, K. B. Kidd and C. M. Nunn, New J. Chem., 1988, 12, 553.
38. B. L. Benac, A. H. Cowley, R. A. Jones, C. M. Nunn and T. C. Wright, J. Am. Chem. Soc., 1989, 111, 4986.
39. R. A. Zingaro and J. C. White, J. Inorg. Nucl. Chem., 1960, 12, 315.
40. O. T. Beachley and J. D. Maloney, Organometallics, 1997, 16, 4016.
41. M. G. Davidson, A. J. Edwards, M. A. Paver, P. R. Raithby, C. A. Russell, A. Steiner, K. L. Verhorevoort and D. S. Wright, J. Chem. Soc., Chem. Commun., 1995, 1989.
42. Y. Yokoyama and K. Takahashi, Bull. Chem. Soc. Jpn., 1987, 60, 3485.
43. Landolt-Bernstein, Numerical data and functional relationships in science and technology, new series, vol. 17f, Springer, Berlin, 1983, pp. 183.
44. J. I. Pankove, Optical processes in semiconductors, Dover Publications Inc., New York, 1970, p. 78.
45. N. L. Adolphi, R. D. Stoddard, S. C. Goel, W. E. Buhro, P. C. Gibbons and M. S. Conradi, J. Phys. Chem. Solids, 1992, 53, 1275.
46. J. E. MacDugal, H. Eckert, G. D. Stucky, N. Herron, Y. Wang, K. Moller, T. Bein and D. Cox, J. Am. Chem. Soc., 1989, 111, 8006.
47. M. J. Gelton, Lect. Notes. Phys., 1982, 152, 167.
48. T. Trindade, PhD thesis, University of London, 1996.
49. L. E. Brus, J. Chem. Phys., 1983, 79, 5566.
50. X-Ray powder diffraction file, ASTM special technical publication 48-j, 2-1181.
51. H. Weller, Angew. Chem., Int. Ed. Engl., 1993, 32, 41.