Reversible tuning of silver quantum dot monolayers through the metal- insulator transition

Science

Volumn 277, Issue 5334, 1997, Pages 1978-1981

  Collier, C P ^a   Saykally, R J ^a   Shiang, J J ^b   Henrichs, S E ^b   Heath, J R ^b  

^a UNIVERSITY OF CALIFORNIA   (United States)

^b UNIVERSITY OF CALIFORNIA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ATOMS; ELECTRONIC PROPERTIES; ELECTRONS; MONOLAYERS; OPTICAL PROPERTIES; SECOND HARMONIC GENERATION; SILVER;

LANGMUIR MONOLAYER; LINEAR OPTICAL RESPONSE; METAL INSULATOR TRANSITION; NONLINEAR OPTICAL RESPONSE; SURFACE PLASMON;

SEMICONDUCTOR QUANTUM DOTS;

METAL; SILVER;

ARTICLE; CHEMICAL ANALYSIS; INORGANIC CHEMISTRY; METALLURGY; OPTICS; PHYSICAL CHEMISTRY; PRIORITY JOURNAL; ULTRAVIOLET SPECTROSCOPY;

EID: 0031587262     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.277.5334.1978     Document Type: Article

References (37)

1. M. Brust et al., J. Chem. Soc. Chem. Commun. 1994, 801 (1994).
2. N. Herron, J. C. Calabrese, W. E. Farneth, Y. Wang, Science 259, 1426 (1993).
3. T. Vossmeyer et al., ibid. 267, 1476 (1995).
4. C. B. Murray, D. J. Norris, M. G. Bawendi, J. Am. Chem. Soc. 115, 8706 (1993).
5. P. C. Ohara, D. V. Left, J. R. Heath, W. M. Gelbart, Phys. Rev. Lett. 75, 3466 (1995).
6. C. B. Murray, C. R. Kagan, M. G. Bawendi, Science 270, 1335 (1995).
7. R. L. Whetten et al., Adv. Mater. 8, 428 (1996).
8. R. P. Andres et al., Science 273, 1690 (1996).
9. J. H. Fendler and F. C. Meldrum, Adv. Mater. 7, 607 (1995).
10. R. G. Freeman et al., Science 267, 1629 (1995).
11. Th. Förster, in Comparative Effects of Radiation, M. Burton, J. S. Kirby-Smith, J. L. Magee, Eds. (Wiley, New York, 1960), chap. 13.
12. D. L. Dexter, J. Chem. Phys. 21, 836 (1953).
13. C. R. Kagan, C. B. Murray, M. G. Bawendi, Phys. Rev. B 54, 8633 (1996).
14. C. R. Kagan, C. B. Murray, M. Nirmal, M. G. Bawendi, Phys. Rev. Lett. 76, 1517 (1996).
15. C. A. Mirkin, R. L. Letsinger, R. C. Mucic, J. J. Storhoff, Nature 382, 607 (1996).
16. For examples of relatively early work on optically probed percolation phenomena in granular metal materials, see R. W. Cohen, G. D. Cody, M. D. Coutts, B. Abeles, Phys. Rev. B 8, 3689 (1973); E. B. Priestley, B. Abeles, R. W. Cohen, ibid. 12, 2121 (1975).
17. For examples of relatively early work on optically probed percolation phenomena in granular metal materials, see R. W. Cohen, G. D. Cody, M. D. Coutts, B. Abeles, Phys. Rev. B 8, 3689 (1973); E. B. Priestley, B. Abeles, R. W. Cohen, ibid. 12, 2121 (1975).
18. D. Ricard, P. Roussignol, C. Flytzanis, Opt. Lett. 10, 511 (1985).
19. C. F. Bohren and D. R. Huffman, Absorption and Scattering of Light by Small Particles (Wiley, New York, 1983); H. C. van de Hulst, Light Scattering by Small Particles (Wiley, New York, 1957); U. Kreibig and M. Vollmer, Optical Properties of Metal Clusters (Springer, Berlin, 1995).
20. C. F. Bohren and D. R. Huffman, Absorption and Scattering of Light by Small Particles (Wiley, New York, 1983); H. C. van de Hulst, Light Scattering by Small Particles (Wiley, New York, 1957); U. Kreibig and M. Vollmer, Optical Properties of Metal Clusters (Springer, Berlin, 1995).
21. C. F. Bohren and D. R. Huffman, Absorption and Scattering of Light by Small Particles (Wiley, New York, 1983); H. C. van de Hulst, Light Scattering by Small Particles (Wiley, New York, 1957); U. Kreibig and M. Vollmer, Optical Properties of Metal Clusters (Springer, Berlin, 1995).
22. T. Takagahara, Surf. Sci. 267, 310 (1992).
23. _, Optoelectron. Dev. Technol. 8, 545 (1993).
24. Y. Kayanuma, J. Phys. Soc. Jpn. 62, 346 (1993).
25. C. K. Chen, A. R. B. de Castro, Y. R. Shen, Phys. Rev. Lett. 46, 145 (1981).
26. V. Kresin, Phys. Rev. B 38, 3741 (1988).
27. J. R. Heath, C. M. Knobler, D. V. Left, J. Phys. Chem. B 101, 189 (1997).
28. 6 particles, a previously unexposed portion of the TEM grid was quickly brought into view, and an image (exposure time, 0.033 s) was immediately captured.
29. 3 particles did not exhibit sufficient stability.
30. SHG signals from static Langmuir monolayers were measured over time to ascertain whether the laser was damaging the monolayers. The signal was very stable for all time periods investigated (up to 20 min), and optical microscopic inspection of the illuminated spot revealed no evidence of film damage. Indeed, the monolayers could be redissolved in hexane after the experiments were carried out.
31. Y. R. Shen, Annu. Rev. Phys. Chem. 40, 327 (1989).
32. N. F. Mott, Metal-Insulator Transitions (Taylor & Francis, London, 1990).
33. P. P. Edwards and M. J. Sienko, Acc. Chem. Res. 15, 87 (1982).
34. I. Farbman and S. Efrima, J. Phys. Chem. 96, 8469 (1992).
35. C. A. Davis, D. R. McKenzie, R. C. McPhedran, Opt. Commun. 85, 70 (1991).
36. c materials.
37. We thank G. Markovich and S.-W. Chung for help in particle synthesis. Supported by the NSF-National Young Investigator program and by the Office of Naval Research, order N00014-95-F-0099, under the auspices of the ONR-funded Molecular Design Institute at UC Berkeley (J.J.S., S.E.H., J.R.H.), fellowships from the Packard Foundation and the Sloan Foundation (J.R.H.), and NSF grant CHE-9424482 (C.P.C. and R.J.S.).