Hybrid electrochemical/chemical synthesis of quantum dots

Accounts of Chemical Research

Volumn 33, Issue 2, 2000, Pages 78-86

  Penner, Reginald M ^a  

^a UNIVERSITY OF CALIFORNIA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

CADMIUM SULFIDE; IRON DERIVATIVE; METAL; ZINC OXIDE;

ARTICLE; ATOMIC FORCE MICROSCOPY; CHEMISTRY; CRYSTAL; ELECTROCHEMICAL ANALYSIS; ELECTROCHEMISTRY; ELECTRON DIFFRACTION; NANOPARTICLE; OXIDATION; OXIDATION REDUCTION REACTION; PARTICLE SIZE; SEMICONDUCTOR; SPECTROSCOPY; SYNTHESIS; X RAY DIFFRACTION;

ELECTROCHEMISTRY; METALS; MICROCHEMISTRY; MICROSCOPY, ATOMIC FORCE; OXIDATION-REDUCTION; PARTICLE SIZE; SEMICONDUCTORS;

EID: 0033982194     PISSN: 00014842     EISSN: None     Source Type: Journal    
DOI: 10.1021/ar9702839     Document Type: Article

References (42)

1. Rossetti, R.; Nakahara, S.; Brus, L. E. Quantum Size Effects in the Redox Potential, Raman Spectra, and Electron Spectra of CdS Crystallites in Aqueous Solution. J. Chem. Phys. 1984, 79, 1086-1088.
2. Rossetti, R.; Ellison, J. L.; Gibson, J. M.; Brus, L. E. Size Effects in Excited Electronic States of Small, Colloidal CdS Crystallites. J. Chem. Phys. 1983, 80, 4464-4469.
3. Weller, H.; Koch, U.; Gutierrez, M.; Henglein, A. Ber. Bunsen-Ges. Phys. Chem. 1984, 88, 649.
4. Fojtik, A.; Weller, H.; Koch, U.; Henglein, A. PhotoChemistry of Colloidal Metal Sulfides. 8. Photophysics of Extremely Small CdS Particles: Q-State CdS and Magic Agglomeration Numbers. Ber. Bunsen-Ges. Phys. Chem. 1984, 88, 969-977.
5. Ramsden, J. J.; Grätzel, M. Photoluminescence of Small CdS Particles. J. Chem. Soc., Faraday Trans. 1 1984, 80, 919-933.
6. Chen, W.; McLendon, G.; Marchetti, A.; Rehm, J. M.; Feedhoff, M. I.; Meyers, C. Size Dependence of Radiative Rate in the Indirect Band Gap Material AgBr. J. Am. Chem. Soc. 1994, 116, 1585-1586.
7. Marchetti, A. P.; Johansson, K. P.; McLendon, G. L. AgBr Photo-physics From Optical Studies of Quantum-Confined Crystals. Phys. Rev. B 1993, 47, 4268-4275.
8. Murray, C. B.; Norris, D. J.; Bawendi, M. G. Synthesis and Characterization of Nearly Monodisperse CdX (X = S, Se, Te) Semiconductor Nanocrystallites. J. Am. Chem. Soc. 1993, 115, 8706-8715.
9. Uchida, H.; Curtis, C. J.; Nozik, A. J. GaAs Nanocrystals Prepared in Quinoline. J. Phys. Chem. 1991, 95, 5382-5384.
10. Olshavsky, M. A.; Goldstein, A. N.; Alivisatos, A. P. Organometallic Synthesis Of GaAs Crystallites Exhibiting Quantum Confinement. J. Am. Chem. Soc. 1990, 112, 9438-9439.
11. Wilson, W. L.; Szajowski, P. F.; Brus, L. E. Quantum Confinement In Size-Selected, Surface-Oxidized Silicon Nanocrystals. Science 1993, 262, 1242-1244.
12. Eaglesham, D. J.; Cerullo, M. Dislocation-Free Stranski-Krastanov Growth of Ge on Si(100). Phys. Rev. Lett. 1990, 64, 1943-1945.
13. Mo, Y.-W.; Savage, D. E.; Swartzentruber, B. S.; Lagally, M. G. Kinetic Pathway in Stranski-Krastanov Growth of Ge on Si(001). Phys. Rev. Lett. 1990, 65, 1020.
14. 1-xAs on GaAs(100). Appl. Phys. Lett. 1990, 57, 2110-2112.
15. In fact, the growth of semiconductor (e.g., germanium) islands occurs atop a wetting layer of germanium that is several atomic layers in thickness, typically. Undesirable photoluminescence from this wetting layer usually "contaminates" the PL spectrum for MBE-synthesized quantum dots.
16. th exhibits less variability with temperature, and the gain bandwidth is narrowed. The application of quantum dots in laser diodes is described in the following publications: Asada, M.; Miyamoto, Y.; Suematsu, Y. IEEE J. Quantum Electron. 1986, QE-22, 1915-1921. Arakawa, Y.; Sakaki, H. Appl. Phys. Lett. 1982, 40, 939-941. Arakawa, Y.; Yariv, A. IEEE J. Quantum Electron. 1985, QE-21, 1666-1674.
17. th exhibits less variability with temperature, and the gain bandwidth is narrowed. The application of quantum dots in laser diodes is described in the following publications: Asada, M.; Miyamoto, Y.; Suematsu, Y. IEEE J. Quantum Electron. 1986, QE-22, 1915-1921. Arakawa, Y.; Sakaki, H. Appl. Phys. Lett. 1982, 40, 939-941. Arakawa, Y.; Yariv, A. IEEE J. Quantum Electron. 1985, QE-21, 1666-1674.
18. th exhibits less variability with temperature, and the gain bandwidth is narrowed. The application of quantum dots in laser diodes is described in the following publications: Asada, M.; Miyamoto, Y.; Suematsu, Y. IEEE J. Quantum Electron. 1986, QE-22, 1915-1921. Arakawa, Y.; Sakaki, H. Appl. Phys. Lett. 1982, 40, 939-941. Arakawa, Y.; Yariv, A. IEEE J. Quantum Electron. 1985, QE-21, 1666-1674.
19. Zoval, J. V.; Stiger, R. M.; Biernacki, P. R.; Penner, R. M. Electrochemical Deposition of Silver Nanocrystallites on the Atomically Smooth Graphite Basal Plane. J. Phys. Chem. 1996, 100, 837-844.
20. Zangwill, A. Physics at Surfaces; Cambridge University Press: Cambridge, UK, 1988.
21. Zoval, J. V.; Lee, J.; Gorer, S.; Penner, R. M. Electrochemical Preparation of Platinum Nanocrystallitas With Size Selectivity on Basal Plane-Oriented Graphite Surfaces. J. Phys. Chem. B 1998, 102, 1166-1175.
22. Hsiao, G. S.; Anderson, M. G.; Gorer, S.; Harris, D.; Penner, R. M. Hybrid Electrochemical/Chemical Synthesis of Supported, Luminescent Semiconductor Nanocrystallites with Size Selectivity: Copperd(I)iodide. J. Am. Chem. Soc. 1997, 119, 1439-1448.
23. Zach, M.; Penner, R. M. Electrodeposition of Size-Monodisperse Nickel Nano- and Micro-Particles on Graphite Using Hydrogen Co-Evolution. Adv. Mater. 1999, submitted for publication.
24. Anderson, M. A.; Gorer, S.; Penner, R. M. A Hybrid Electrochemical/Chemical Synthesis of Supported, Luminescent Cadmium Sulfide Nanocrystals. J. Phys. Chem. B 1997, 101, 5895-5899.
25. Gorer, S.; Ganske, J. A.; Hemminger, J. C.; Penner, R. M. The Size-Selective Electrochemical/Chemical Synthesis of Sulfur Passivated Cadmium Sulfide Nanocrystals on Graphite. J. Am. Chem. Soc. 1998, 120, 9584-9593.
26. Nyffenegger, R. M.; Craft, B.: Shaaban, M.; Gorer, S.; Penner, R. M. A Hybrid Electrochemical/Chemical Synthesis of Zinc Oxide Nanoparticles And Optically Intrinsic Thin Films. Chem. Mater. 1998, 10, 1120-1129.
27. Morcos, I. Surface-Tension of Stress-Annealed Pyrolytic Graphite. J. Chem. Phys. 1972, 57, 1801-1805.
28. Stiger, R. M.; Gorer, S.; Craft, B.; Penner, R. M. Investigations of Electrochemical Silver Nanocrystal Growth on Hydrogen-Terminated Silicon(100). Langmuir 1999, 15, 790-798.
29. 2 Substrate. Phys. Rev. B 1987, 35, 4393-4397).
30. 2 Substrate. Phys. Rev. B 1987, 35, 4393-4397).
31. 2 Substrate. Phys. Rev. B 1987, 35, 4393-4397).
32. 2 Substrate. Phys. Rev. B 1987, 35, 4393-4397).
33. The quantum yield for E/C-synthesized nanocrystals has not been directly measured because it has not been possible, so far, to obtain absorption spectra for these nanoparticles on the absorbing graphite surface. It is probable that the PL quantum yield for quantum dots on the graphite surface is reduced by both of the mechanisms discussed in ref 27.
34. So far we have obtained photoluminescence spectra for ZnO films, but not for nanoparticles because photons having the higher energy necessary to excite fluorescence in quantum-confined ZnO nanoparticles have not been available in our laboratory.
35. The graphite surface may also play a role in reducing the intensity of trap-state emission for ZnO. The radiative lifetime for trap states in ZnO is much greater than the lifetime for band-edge emission, and emission from these midgap states would therefore be preferentially quenched relative to band-edge emission.
36. Bawendi, M. G.; Steigerwald, M. L.; Brus, L. E. The Quantum Mechanics of Larger Semiconductor Clusters (Quantum Dots). Annu. Rev. Phys. Chem. 1990, 41, 477-496.
37. Steigerwald, M. L.; Brus, L. E. Synthesis, Stabilization, and Electronic Structure Of Quantum Semiconductor Nanoclusters. Annu. Rev. Mater. Sd. 1989, 19, 471-495.
38. Steigerwald, M. L.; Brus, L. E. Semiconductor Crystallites - a Class Of Large Molecules. Acc. Chem. Res. 1990, 23, 183-188.
39. Fransaer, J.; Penner, R. M. Brown Dynamics Simulations of the Growth of metal Nanocrystal Ensembles on Electrodes Surfaces From Solution. I. Instantaneous Nucleation and Diffusion-Controlled Growth. J. Phys. Chem. B 1999, 103, 7643.
40. -2 from a 1.0 mM solution of metal ions typically requires 10-20 ms.
41. Gorer, S.; Penner, R. M. "Multipulse" Electrochemical/Chemical Synthesis of CdS/S Core-Shell Nanocrystals Exhibiting Ultranarrow Photoluminescence Emission Lines. J. Phys. Chem. B 1999, 103, 5750-5753.
42. Erley, G.; Gorer, S.; Penner, R. M. Transient Photocurrent Spectroscopy: Electrical Detection of Optical Absorption For Supported Semiconductor Nanocrystals in a Simple Device Geometry. Appl. Phys. Lett. 1998, 72, 2301-2303.