Colloidal CdSe nanocrystals from tri-n-octylphosphine: Part I: Growth and optical properties from polar and non-polar solvents

Journal of Nanoscience and Nanotechnology

Volumn 5, Issue 4, 2005, Pages 659-668

  Yu, Kui ^a   Zaman, Badruz ^a   Singh, Shanti ^a   Dashan, Wang ^a   Ripmeester, John A ^a  

^a NATIONAL RESEARCH COUNCIL CANADA   (Canada)

Author keywords

CdSe Nano Particles; Photoluminescent Properties; Polar and Non Polar Dispersions; Semi Conductor Nano Crystals; Solvent Sensitivity; Synthesis and Characterization

Indexed keywords

CDSE NANOPARTICLES; NONPOLAR DISPERSIONS; SEMICONDUCTOR NANOCRYSTALS; SOLVENT SENSITIVITY;

CHARACTERIZATION; COLLOIDS; CRYSTAL GROWTH; DISPERSIONS; PHOTOLUMINESCENCE; SEMICONDUCTING CADMIUM COMPOUNDS; SYNTHESIS (CHEMICAL);

NANOSTRUCTURED MATERIALS;

CADMIUM; CADMIUM DERIVATIVE; CADMIUM OXIDE; CADMIUM SELENIDE; FURAN DERIVATIVE; HEXANE; LIGAND; ORGANOPHOSPHORUS COMPOUND; OXIDE; SELENIUM DERIVATIVE; SOLVENT; TETRAHYDROFURAN; TRIOCTYL PHOSPHINE OXIDE;

ARTICLE; CHEMISTRY; COLLOID; KINETICS; METHODOLOGY; NANOTECHNOLOGY; SEMICONDUCTOR; TEMPERATURE; TIME; TRANSMISSION ELECTRON MICROSCOPY; ULTRAVIOLET RADIATION;

CADMIUM; CADMIUM COMPOUNDS; COLLOIDS; FURANS; HEXANES; KINETICS; LIGANDS; MICROSCOPY, ELECTRON, TRANSMISSION; NANOTECHNOLOGY; ORGANOPHOSPHORUS COMPOUNDS; OXIDES; SELENIUM COMPOUNDS; SEMICONDUCTORS; SOLVENTS; TEMPERATURE; TIME FACTORS; ULTRAVIOLET RAYS;

EID: 19944402570     PISSN: 15334880     EISSN: None     Source Type: Journal    
DOI: 10.1166/jnn.2005.122     Document Type: Article

References (32)

1. (a) H. Weller, Adv. Mater. 5, 88 (1993);
2. (b) M. Nirmal and L. Brus, Ace. Chem. Res 32, 407 (1999);
3. (c) J. Hu, T. W. Odom, and C. M. Lieber, Acc. Chem. Res 32, 435 (1999).
4. (a) M. Bruchez, M. Moronne, P. Gin, S. Weiss, and A. P. Alivisatos, Science 281, 2013 (1998);
5. (b) W. C. W. Chan, and S. Nie, Science 281, 2016 (1998);
6. (c) E. Klarreich, Nature 413, 450 (2001);
7. (d) B. Dubertret, P. Skourides, D. J. Norris, V. Noireaux, A. H. Brivanlou, and A. Libchaber, Science 298, 1759 (2002);
8. (e) C. Seydel, Science 300, 80 (2003).
9. C. B. Murray, D. J. Norris, and M. G. Bawendi, J. Am. Chem. Soc. 115, 8706 (1993).
10. (a) Z. A. Peng and X. Peng, J. Am. Chem. Soc 123, 183 (2001);
11. (b) L. Qu, Z. A. Peng, and X. Peng, Nemo Lett 1, 333 (2001).
12. (a) L. Qu and X. Peng, J. Am. Chem. Soc. 124, 2049 (2002);
13. (b) M. de C. Donega, S. G. Hickey, S. F. Wuister, D. Vanmaekelbergh, and A. Meijersink, J. Phys. Chem. B 107, 489 (2003).
14. H. Weller, Phil. Trans. R. Soc. Land. 361, 229 (2003).
15. (a) K. Yu, S. Singh, N. Patrito, and V. Chu, Langmuir 20, 11161 (2004). According to our non-organometallic approaches involving a certain amount of TOP in a reaction flask before the injection, a comprehensive examination of the control of the photoluminescent (PL) properties was performed by systematically varying the TOP/TOPO weight ratio of the reaction media. Surprisingly, a rational choice of 100% TOP or 80% TOP was found to produce high-quality nano-crystals when monitored under the Present Experimental Conditions and Growth-Time Scale (PECGTS). Furthermore, the presence of large amount of TOPO in the reaction media of CdSe is not good either, regarding the optical properties of the resulting CdSe dispersions after days of storage (in dark);
16. (b) K. Yu, B. Zaman, S. Romanova, D. Wang, and J. A. Ripmeester, Small 3, 332 (2005);
17. (c) K. Yu, B. Zaman, and J. A. Ripmeester, J. NanoSci. NanoTech. in print (2005);
18. (d) K. Yu et al., unpublished results.
19. A. M. Derfus, W. C. W. Chan, and S. N. Bhatia, Nano Lett. 4, 11 (2004).
20. L. R. Becerra, C. B. Murray, R. G. Griffin, and M. G. Bawendi, J. Chem. Phys. 100, 3279 (1994).
21. (a) J. E. B. Katari, V. L. Colvin, and A. P. Alivisatos, J. Phys. Chem. 98, 4109 (1994);
22. (b) A. P. Alivisatos, J. Phys. Chem. 100, 13226 (1996).
23. (a) S. R. Cordeo, P. J. Carson, R. A. Estabrook, G. F. Strouse, and S. K. Buratto, J. Phys. Chem. B 104, 12137 (2000);
24. (b) N. Myung, Y. Bae, and A. J. Bard, Nano Lett. 3, 747 (2003).
25. (a) M. Nirmal, C. B. Murry, and M. G. Bawendi, Phys. Rev: B. 50, 2293 (1994);
26. (b) M. Kuno, J. K. Lee, B. O. Dabbousi, F. V. Mikulec, and M. G. Bawendi, J. Chem. Phys. 106, 9869 (1997).
27. (a) M. G. Bawendi, P. J. Carroll, W. L. Wilson, and L. E. Brus, J. Chem. Phys. 96, 946 (1992);
28. (b) M. Nirmal, D. J. Norris, M. Kuno, M. G. Bawendi, A. L. Efros, and M. Rosen, Phys. Rev. Lett. 75, 3728 (1995).
29. A. I. Ekimov, E. Hache, M. G. Schanne-Klein, D. Ricard, and C. Flytzanis, J. Opt. Soc. Am. B 10, 100 (1993).
30. (a) The vial storing the 20-min nanocrystals in the solid state was kept in the dark at 5 °C for 37 days before the dilution experiments were performed. The 37-day-old suite of the 20 min CdSe nanocrystals exhibits an enhancement of the PL intensity as compared to the as-prepared suite in both Hex and in THF;
31. (b) In the present dilution discussion, we do not address the issue of small molecule passivation during dilution.
32. X. Peng, J. Wicham, and A. P. Alivisatos, J. Am. Chem. Soc. 120, 5343 (1998).