Nanostructure reactivity: Confinement energy and charge transfer in porous silicon

Sensors and Actuators, B: Chemical

Volumn 111-112, Issue SUPPL., 2005, Pages 117-124

  Di Francia, G ^a   Quercia, L ^a   Rea, I ^a   Maddalena, P ^b   Lettieri, S ^b  

^a ENEA   (Italy)

^b UNIVERSITY OF NAPLES FEDERICO II   (Italy)

Author keywords

Electron transfer; Nanostructure; Porous silicon; Reaction rate

Indexed keywords

AMMONIA; CHARGE TRANSFER; NANOSTRUCTURED MATERIALS; OXYGEN; REACTION KINETICS; RESONANCE;

CONFINEMENT ENERGY; ELECTRON TRANSFER; MARCUS THEORY; REACTION RATE;

POROUS SILICON;

EID: 25144439541     PISSN: 09254005     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.snb.2005.07.005     Document Type: Conference Paper

References (28)

1. N. Yamazoe New approaches for improving semiconductor gas sensors Sens. Actuators B 5 1991 7 19
2. J. Hahm, and C.M. Lieber Direct ultrasensitive electrical detection of DNA and DNA sequence variations using nanowire nanosensors Nanoletters 4 2004 51 54
3. J. Kong Nanotube molecular wires as chemical sensors Science 287 2000 622 625
4. D.M. Adams Charge transfer on the nanoscale: current status J. Phys. Chem. B 107 2003 6668 6697
5. L.T. Canham L.T. Canham Porous Silicon 1997 INSPEC London p. 364
6. G. Di Francia Porous silicon based gas sensors Recent Res. Dev. Electrochem. 3 2000 93 106
7. L.E. Brus Electronic spectroscopy and photophysics of Si nanocrystals: relationship to bulk c-Si and porous Si J. Am. Chem. Soc. 117 1995 2915 2922
8. D. Kovalev Optical properties of Si nanocrystals Phys. Stat. Sol. (b) 215 1999 871 932
9. P.C. Jordan Chemical Kinetics and Transport 1979 Plenum Press New York/London p. 178
10. M. Mac, and J. Wirz Deriving intrinsic electron-transfer rates from nonlinear Stern-Volmer dependencies for fluorescence quenching of aromatic molecules by inorganic anions in acetonitrile Chem. Phys. Lett. 211 1993 20 26
11. S. Sawada Mechanisms of visible photoluminescence in porous silicon Phys. Rev. B 49 1994 5236 5245
12. J. Harper, and M.J. Sailor Photoluminescence quenching and the photochemical oxidation of porous silicon by molecular oxygen Langmuir 13 1997 4652 4658
13. Y. Fukuda Quenching of porous silicon photoluminescence by ammonia hydrogen peroxide mixture J. Electrochem. Soc. 147 10 2000 3917 3921
14. 2 Appl. Phys. Lett. 82 2003 1595 1597
15. Y.H. Ogata Changes in the environment of hydrogen in porous silicon with thermal annealing J. Electrochem. Soc. 145 1998 2439 2444
16. +-type mesoporous silicon induced by the adsorption of ammonia Angew. Chem. Int. Ed. 42 2003 5032 5035
17. N. Sutin Free energies, barriers, and reactivity patterns in oxidation-reduction reactions Ann. Rev. Phys. Chem. 17 119 1966 225 231
18. R.A. Marcus Electron transfer reactions in chemistry. Theory and experiment Rev. Mod. Phys. 65 1993 599 610
19. G.M. Brown, and N. Sutin A comparison of the rates of electron exchange reactions of ammine complexes of ruthenium(II) and (III) with the predictions of adiabatic, outer-sphere electron transfer models J. Am. Chem. Soc. 101 4 1979 883 892
20. G.A. Zalesskaya Photoinduced gas-phase electron transfer reactions J. Fluorescence 14 2004 173 180
21. B.S. Brunschwig Distance dependence of electron-transfer reactions: rate maxima and rapid rates at large reactant separations J. Am. Chem. Soc. 106 1984 6858 6859
22. L.E. Brus Electron-electron and electron-hole interactions in small semiconductor crystallites: the size dependence of the lowest excited electronic state J. Chem. Phys. 80 1984 4403 4409
23. B.S. Brunschwig A semiclassical treatment of electron-exchange reactions. Application to the hexaaquoiron(II)-hexaaquoiron(III) system J. Am. Chem. Soc. 102 1980 5798 5809
24. K.J. Bachmann E. Kaldis Current Topics in Material Science vol. III 1979 North Holland 622
25. G.L. Closs, and J.R. Miller Intramolecular long-distance electron transfer in organic molecules Science 240 1988 440 447
26. E. Martin Theory of excitonic exchange splitting and optical Stokes shift in silicon nanocrystallites: application to porous silicon Phys. Rev. B 50 1994 18258 18267
27. D. Kovalev Resonant electronic energy transfer from excitons confined in silicon nanocrystals to oxygen molecules Phys. Rev. Lett. 89 2002 137401-1 137401-4
28. 3 on the Si(1 0 0) surface Phys. Rev. B 58 1998 4903 4908