Nanoparticles and nanowires: Synchrotron spectroscopy studies

International Journal of Nanotechnology

Volumn 5, Issue 9-12, 2008, Pages 1194-1246

  Sham, T K ^a,b,c,d  

^a UNIVERSITY OF WESTERN ONTARIO   (Canada)

^b Department of Chemistry ^*

^c UNIVERSITY OF WISCONSIN MADISON   (United States)

^d CANADIAN LIGHT SOURCE INC   (Canada)

Author keywords

Electronic structure and optical properties; Gold nanoparticles; Semiconductor 1 D nanowires; Synchrotron radiation; TRXEOL; XAFS; XANES; XEOL

Indexed keywords

ABSORPTION SPECTRA; ABSORPTION SPECTROSCOPY; ATOMIC PHYSICS; CADMIUM SULFIDE; CDS NANOPARTICLES; ELECTRONIC DENSITY OF STATES; ELECTRONIC STRUCTURE; FIBER OPTIC SENSORS; GOLD NANOPARTICLES; II-VI SEMICONDUCTORS; LUMINESCENCE; MAGNETIC SEMICONDUCTORS; METAL NANOPARTICLES; NANODIAMONDS; NANOWIRES; OPTICAL EMISSION SPECTROSCOPY; OPTICAL PROPERTIES; SEMICONDUCTING CADMIUM COMPOUNDS; SEMICONDUCTING ZINC COMPOUNDS; SPECTRUM ANALYSIS; SYNCHROTRON RADIATION; WIDE BAND GAP SEMICONDUCTORS; X RAY ABSORPTION; ZINC OXIDE; ZINC SULFIDE; ZNS NANOPARTICLES;

ELECTRONIC STRUCTURE AND OPTICAL PROPERTIES; SEMICONDUCTOR 1-D NANOWIRES; TRXEOL; XAFS; XANES; XEOL;

SYNCHROTRONS;

EID: 49549084378     PISSN: 14757435     EISSN: None     Source Type: Journal    
DOI: 10.1504/IJNT.2008.019837     Document Type: Article

References (124)

1. Cullis, A.G., Canham, L.T. and Calcott, P.D.J. (1997) 'The structural and luminescence properties of porous silicon', J. Appl. Phys., Vol. 82, No. 3, pp.909-965.
2. Canham, L.T. (1990) 'Silicon quantum wire array fabrication by electrochemical and chemical dissolution of wafers', Appl. Phys. Lett., Vol. 57, No. 10, pp.1046-1048.
3. Zhang, Y.F., Tang, Y.H., Wang, N., Yu, D.P., Lee, C.S., Bello, I. and Lee, S.T. (1998), 'Silicon nanowires prepared by laser ablation at high temperature', Appl. Phys. Lett., Vol. 72, No. 15, pp.1835-1837.
4. Morales, A. and Lieber, C.M. (1998) 'A laser ablation method for the synthesis of crystalline semiconductor nanowires', Science, Vol. 279, pp.208-211.
5. Wang, N., Tang, Y.H., Zhang, Y.F., Yu, D.P., Lee, C.S., Bello, I. and Lee, S.T. (1998), 'Transmission electron microscopy evidence of the defect structure in Si nanowires synthesized by laser ablation', Chem. Phys. Lett., Vol. 283, Nos. 5-6, pp.368-372.
6. Lee, S.T., Wang, N., Zhang, Y.F. and Tang, Y.H. (1999) 'Oxide-assisted semiconductor nanowire growth', MRS Bulletin, Vol. 24, No. 8, pp.836-842.
7. Wagner, R.S. and Ellis, W.C. (1964) 'Vapor-Liquid-Solid mechanism of single crystal growth', Appl. Phys. Lett., Vol. 4, No. 5, pp.89-90.
8. Hillert, M. (1998) Phase Equilibra, Phase Diagram, Phase Transformation, Cambridge University Press, Cambridge.
9. Nguyen, P., Ng, H.T. and Meyyappan, M. (2005) 'Growth of individual vertical germanium nanowires', Adv. Mater., Vol. 17, No. 5, pp.549-553.
10. 2]', Chem. Mater., Vol. 16, No. 12, pp.2449-2456.
11. Korgel, B.A. and Hanrath, T. (2003) 'Supercritical fluid-liquid-solid (SFLS) synthesis of Si and Ge nanowires seeded by colloidal metal nanocrystals', Adv. Mater., Vol. 15, No. 5, pp.437-440.
12. Sun, X.H., Didychuk, C., Sham, T.K. and Wong, N.B. (2006) 'Germanium nanowires: synthesis, morphology and local structure studies', Nanotechnology, Vol. 17, pp. 1-6.
13. Coulthard, I., Zhu, Y.-J., Degan, S. and Sham, T.K. (1998) 'Reductive deposition of Au on porous silicon: preparation, morphology and electronic structures', Can. J. Chem., Vol. 76, No. 11, pp.1707-1716.
14. Zhang, P. and Sham, T.K. (2003) 'Fabrication of thiol-capped Pd nanoparticles: an electrochemical method', Appl. Phys. Lett., Vol. 82, No. 8, pp.1778-1780.
15. Zhang, P., Kim, P.S. and Sham T.K. (2002) 'Electrochemical route for the fabrication of alkanethiolate-capped gold', Appl. Phys. Lett., Vol. 82, No. 9, pp. 1470-1472.
16. Zhang, P. and Sham, T.K. (2001) 'Tuning the electronic behavior of Au nanoparticles with capping molecules', Appl. Phys. Lett., Vol. 81, No. 4, pp.736-738.
17. Zhang, P. and Sham, T.K. (2003) 'X-ray studies of the structure and electronic behavior of alkanethiolate-capped gold nanoparticles: the interplay of size and surface effect', Phys. Rev. Lett., Vol. 90, No. 24, pp.245502(1-4).
18. Zhang, P., Zhou, X., Tang, Y. and Sham, T.K. (2005) 'Organosulfur functionalised Au, Pd and Au-Pd nanoparticles on ID silicon nanowire substrates: preparation and XFAS studies', Langmuir, Vol. 21, No. 18, pp.8502-8508.
19. Winick, H. (Ed.) (1994) Synchrotron Radiation Sources, A Primer, World Scientific, Singapore.
20. Attwood, D. (2000) Soft X-ray and Extreme Ultraviolet Radiation, Principle and Applications, Cambridge University Press, Cambridge.
21. Sayers, D.E., Stem, E.A. and Lytle, F.W. (1971) 'New technique for investigating noncrystalline structures: Fourier analysis of the extended X-ray absorption fine structure', Phys. Rev. Lett., Vol. 27, No. 18, pp.1204-1207.
22. Lee, P.A., Citrin, P.H., Eisenberger, P. and Kincaid, B.M. (1981) 'Extended X-ray absorption fine structures- its strength and limitations as structure tool', Rev. Mod. Phys., Vol. 53, No. 4, pp.769-806.
23. Koningsberger, D.C. and Prins, R. (1988) X-ray Absorption Principles, Applications, Techniques of EXAFS, SEXAFS andXANES, John Wiley and Sons, New York.
24. Bianconi, A. (1988) 'XANES spectroscopy', in Koningsberger, D.C. and Prins, R. (Eds.): X-ray Absorption Principles, Applications, Techniques of EXAFS, SEXAFS and XANES, John Wiley and Sons, New York, pp.573-662.
25. Stöhr, J. (1988) NEXAFS Spectroscopy, Springer-Verlag, New York.
26. Rehr, J.J. and Albert, R.C. (2000) 'Theoretical approaches to x-ray absorption fines structure', Rev. Mod. Phys., Vol. 72, No. 3, pp.621-654.
27. Zhang, Y.F., Liao, L.S., Chan, W.H., Lee, S.T., Sammynaiken, R. and Sham, T.K. (2000) 'Electronic structure of silicon nanowires: a photoemission and X-ray study', Phys. Rev. B, Vol. 61, No. 12, pp.8298-8305.
28. Sham, T.K. (1986) 'Application of X-ray absorption spectroscopy to the studies of structure and bonding of metal complexes in solution', Acc. Chem. Res., Vol. 19, No. 4, pp.99-104.
29. Rogalev, A. and Goulon, J. (2002) 'X-ray excited optical luminescence', in Sham, T.K. (Ed.): Chemical Applications of Synchrotron Radiation, Part II: X-ray Applications, World Scientific Publishing Co., Singapore, Vol. 12B, pp.707-760.
30. Sham, T.K., Jiang, D.T., Coulthard, I., Lorimer, J.W., Feng, X.H., Tan, K.H., Fraigo, S.P., Rosenberg, R.A., Houghton, D.C. and Bryskiewicz, B. (1993) 'Origin of luminescence from porous deduced by synchrotron-light-induced luminescence', Nature, Vol. 363, pp.331-334.
31. Hu, Y.F., Tan, K.H., Kim, P.S., Naftel, S.J., Sham, T.K., Coulthard, I. and Yates, B.W. (2002) 'Soft X-ray excited optical luminescence: some recent applications', Rev. Sci. Instru., Vol. 73, No. 3, pp.1379-1381.
32. Heigl, F., Lam, S., Regier, T., Coulthard, I. and Sham, T.K. (2006) 'Time-resolved X-ray optical luminescence from tris(2-phenylpyridine)iridium', J. Am. Chem. Soc. Comm., Vol. 128, No. 12, pp.3906-3907.
33. Rosenberg, R.A., Shenoy, G.K., Heigl, F., Lee, S.T., Kim, P.S.G. and Zhou, X.T. (2005) 'Determination of the local luminescence sites in ZnS nanowires from X-ray excited optical luminescence', Appl. Phys. Lett., Vol. 87, pp.253105(1-3).
34. Rosenberg, R.A., Shenoy, G.K., Tien, L-C., Norton, D., Pearton, S., Zhou, X.T. and Sham, T.K. (2006) 'Anisotropic X-ray absorption effects in the optical luminescence yield of wurtzite nanostructures',Appl. Phys. Lett., Vol. 89, pp.093118(1-3).
35. Heigl, F., Jürgensen, A., Zhou, X-T., Lam, S., Murphy, M., Ko, J.Y., Sham, T.K., Gordon, R., Brewe, D., Regier, T. and Armelao, L. (2006) 'Dynamic view on nanostructures: a technique for time resolved optical luminescence using synchrotron light pulses at SRC, APS, and CLS', SRI2006, AIP Proc., Vol. 899, pp. 1202-1205.
36. Nordgren, J.E., Butorin, S.M., Duda, L.C., Guo, J.H. and, Rubensson, J-E. (2002) 'Soft X-ray fluorescence spectroscopy for materials science and chemical physics', in Sham, T.K. (Ed.): Chemical Applications of Synchrotron Radiation, Part I I, World Scientific, Singapore, pp.517-572.
37. 2,3 fluorescence spectrum of Si', Phys. Rev. Lett., Vol. 64, No. 9, pp.001047.
38. Krause, M.O. (1979) 'Atomic radiative and radiationless yields for K and L shells', Phys. Chem. Ref. Data, Vol. 8, No. 2, pp.307-327.
39. Materlik, G., Sparks, C.J. and Fischer, K. (Eds.) (1994) Resonant Anomalous X-Ray Scattering: Theory and Applications, North-Holland, Amsterdam.
40. Hayashi, H., Udagawa, Y., Gillet, J-M., Caliebe, W.A. and Kao, C-C. (2002) 'Chemical application of inelastic X-ray scattering', in Sham, T.K. (Ed.): Chemical Applications of Synchrotron Radiations Part II, World Scientific, Singapore, pp.850-908.
41. Tang, C.W. and van Slyke, S.A. (1987) 'Organic electronluminescence diodes', Appl. Phys. Lett., Vol. 51, No. 8, pp.605-607.
42. 3,2- and K-edge', Solid State Comm., Vol. 110, No.4, pp.203-208.
43. Jiang, D.T., Coulthard, I., Sham, T.K., Lorimer, J.W., Frigo, S.P., Feng, X.H. and Rosenberg, R.A. (1993) 'Observations on the surface and bulk luminescence of porous silicon', J. Appl. Phys., Vol. 74, No. 10, pp.6335-6340.
44. Coulthard, I., Jiang, D-T., Zhu, Y.J. and Sham, T.K. (2000) 'A systematic study of synchrotron light induced luminescence from porous silicon: implications to morphology and chemical effect dependent electronic behavior', J. Porous Mater., Vol. 7, Nos. 1-3, pp. 165-168.
45. Coulthard, I., Jiang, D.T. and Sham, T.K. (1996) 'VUV induced luminescence of porous silicon', J. Electron. Spectrosc. Relat. Phenom., Vol. 79, pp.233-236.
46. Sham, T.K., Coulthard, I. and Naftel, S.J. (2002) 'Multicore, multichannel detection (MCMD) x-ray absorption fine structure studies of thin films' in 'Chemical application of inelastic X-ray scattering", in Sham, T.K. (Ed.): Chemical Applications of Synchrotron Radiations Part II, World Scientific, Singapore, pp.1154-1212.
47. Buuren, T., Dinh, L.N., Chase, L.L., Siekhaus, W.J. and Terminello, L.J. (1998) 'Changes in the electronic properties of Si nanocrystals as a function of particle size', Phys. Rev. Lett., Vol. 80, No. 17, pp.3803-3806.
48. Wilcox, J.P. and Samara, G.A. (1999) 'Tailorable, visible light emission from silicon nanocrystals', Appl. Phys. Lett., Vol. 74, No. 21, pp.80-82.
49. Zhang, Y.F., Liao, L.S., Chan, W.H., Sammtnakein, R., Lee, S.T. and Sham, T.K. (2000) 'Electronic structure of silicon nanowires: a photoemission and X-ray absorption study', Phys. Rev. B, Vol. 61, No. 12, pp.8298-8305.
50. Sham, T.K., Naftel, S.J., Kim, P-S.G. Sammynaiken, R., Tang, Y.H., Coulthard, I., Moewes, A., Freeland, J.W., Hu, Y-F. and Lee, S.T. (2004) 'The electronic structure and optical properties of silicon nanowires: an X-ray excited optical luminescence and x-ray emission spectroscopy study', Phys. Rev. B, Vol. 70, pp.045313(1-8).
51. Wolkin, M.V., Jome, J., Fauchet, P.M., Allan, G. and Delerue, C. (1999) 'Electronic states and luminescence in porous silicon quantum dots: the role of oxygen', Phys. Rev. Lett., Vol. 82,No. 1, pp.197-200.
52. Tohmon, R., Shimagaichi, Y., Mizuno, H. and Ohki, Y. (1989) '2.7-eV luminescence in as-manufactured high-purity silica glass', Phys. Rev. Lett., Vol. 62, No. 12, pp. 1388-1391.
53. Statins, J.H. and Kastner, M.A. (1987) 'Time-resolved photoluminescence in amorphous silicon dioxide', Phys. Rev. B, Vol. 35, No. 6, pp.2972-2979.
54. Coulthard, I., Antel Jr., W.J., Freeland, J.W., Sham, T.K., Naftel, S.J. and Zhang, P. (2000) 'Influence of sample oxidation on the nature of optical luminescence from porous silicon', Appl. Phys. Lett., Vol. 77, No. 4, pp.498-500.
55. Öǧüt, S., Chelikowsky, J.R. and Louie, S.G. (1997) 'Quantum confinement and optical gaps in Si nanocrystals', Phys. Rev. Lett., Vol. 79, No. 9, pp.1770-1773.
56. Allan, G., Delerue, C. and Lannoo, M. (1996) 'Nature of luminescent surface states of semiconductor nanocrystallites', Phys. Rev. Lett., Vol. 76, No. 16, pp.2961-2964.
57. Batson, P.E. and Heath, J.R. (1993) 'Electron energy loss spectroscopy of single silicon nanocrystals: the conduction band', Phys. Rev. Lett., Vol. 71, No. 6, pp.911-914.
58. Eisebitt, S., Lüning, J., Rubensson, J-E., Eberhardt, W., Berger, M. and Arens-Fischer, R. (1996) 'Quantum confinement effects in the soft X-ray fluorescence spectra of porous silicon nanostructures', Solid State Comm., Vol. 97, No. 7, pp.549-552.
59. 46 (M = Na,K) clathrates', Phys. Rev. B, Vol. 65, pp.153106(1-3).
60. 3,2-edge', J. Appl. Phys., Vol. 90, No. 12, pp.6379-6383.
61. Sun, X.H., Wong, N.B., Li, C.P., Lee, S.T. and Sham, T.K. (2004) 'Chain-like silicon nanowires: morphology, electronic structure and luminescence studies', J. Appl. Phys., Vol. 96, No. 6, pp.3447-3415.
62. Tang, Y.H., Sham, T.K., Jurgensen, A., Hu, Y.F., Lee, C.S. and Lee, S.T. (2002) 'Heavily phosphorous-doped silicon nanowires studied by near edge X-ray absorption fine structure spectroscopy', Appl. Phys. Lett., Vol. 80, No. 20, pp.3709-3711.
63. 2 glassy matrices', Appl. Phys. Lett., Vol. 59, No.24, pp.3168-3170.
64. Sun, X.H., Wong, N.B., Li, C.P., Lee, S.T., Kim, P.S.G. and Sham, T.K. (2004) 'Reductive Self-assembling of Pd and Rh nanoparticles on silicon nanowire templates', Chem. Mater., Vol. 16, No. 6, pp.1143-1152.
65. Xia, Y., Yang, P., Sun, Y., Wu, Y., Mayers, B., Gates, B., Yin, Y., Kim, F. and Yan, H. (2003) 'One-dimensional nanostructures: synthesis, characterization, and applications', Adv. Mater., Vol. 15, No. 5, pp.353-389.
66. Jenkins, R. and Snyder, R.L. (1996) Introduction to X-ray Powder Diffractiometry, John Wiley & Sons, New York.
67. Mansour, A.N., Cook, J.W. and Sayers, D.E. (1984) 'Quantitative technique for the determination of the number of unoccupied d-electron states in a platinum catalyst using the L2,3 X-ray absorption edge spectra', J. Phys. Chem., Vol. 88, No. 11, pp.2330-2334.
68. 2,3 X-ray absorption study', Phys. Rev. B, Vol. 51, No. 15, pp.9515-9520.
69. Crespo, P., Litrián, R., Rojas, C.T., Multigner, M., de la Fuente, J.M., Sánchez-López, J.C., Garcia, M.A., Hernando, A., Penadés, S. and Fernández, A. (2004) 'Permanent magnetism, magnetic anisotropy, and hysteresis of thiol-capped gold nanoparticles', Phys. Rev. Lett., Vol. 93, pp.087204 (1-4).
70. Bzowski, A., Sham, T.K., Werneirt, M. and Watson, R.E. (1995) 'Electronic structure of Au and Ag overlayers on Ru(001): the behaviour of the metal d-band', Phys. Rev. B, Vol. 51, No. 15, pp.9979-9984.
71. Kuhn, M. and Sham, T.K. (1994) 'Charge redistribution and electronic behavior in a series of Au-Cu alloys', Phys. Rev. B, Vol. 49, No. 3, pp.1647-1661.
72. Wertheim, G.K., Dicenzo, S.B. and Youngquist, S.E. (1983) 'Unit charge on supported gold clusters in photoemission final state', Phys. Rev. Lett., Vol. 51, No. 25, pp.2310-2212.
73. Schmid, G. (1992) 'Large clusters and collids. Metal in the embryonic state', Chem. Rev., Vol. 92, No. 8, pp. 1709-1727.
74. Ohgi, T. and Fujita, D. (2002) 'Consistent size dependency of core-level binding energy shifts and single-electron tunneling effects in supported gold nanoclusters', Phys. Rev. B, Vol. 66, No.11, pp.H5410(1-5).
75. Tanaka, A., Takeda, Y., Imamura, M.M. and Sato, S. (2003) 'Dynamic final-state effect on the Au 4/ core-level photoemission of dodecanethiolate- passivated Au nanoparticles on graphite substrates',Phys. Rev. B, Vol. 68, pp.195415(1-5).
76. Hovel, H., Grimm, B., Pollmann, B. and Reihl, B. (1998) 'Cluster-substrate interaction on a femtosecond time scale revealed by a high-resolution photoemission study of the Fermi-level onset', Phys. Rev. Lett., Vol. 81,No. 21, pp.4608-4611.
77. Wilcoxon, J.P., Martin, J.E., Parsapour, F., Wiedenman, B. and Kelley, D.F. (1998) 'Photoluminescence from nanosize gold clusters', J. Chem. Phys., Vol. 108, No. 21, pp.9137-9143.
78. Zheng, J, Zhang, C. and Dickson, R.M. (2004) 'Highly fluorescent, water-soluble, size-tunable gold quantum dots', Phys. Rev. Lett., Vol. 93, No. 7, pp.77402(1-4).
79. Sham, T.K., Zhang, P. and Kim, P-S.G. (2006) 'Electronic structure of molecular-capped gold nanoparticles from X-ray spectroscopy studies: implications for coulomb blockade, luminescence and non-Fermi behavior', Solid State Comm., Vol. 138, Nos. 10-11, pp.552-557.
80. See http://krayos.com/Agen/MagLens.html for technical details.
81. Sham, T.K. and Wendin, G. (1980) 'Screening and configuration-interaction effects in the 5p X-ray-photoelectron spectrum of Th metal', Phys. Rev. Lett., Vol. 44, No. 12, pp.817-820.
82. Kim, P-S.G.P, Zhang, P. and Sham, T.K. (2004) 'Reductive deposition of Rh nanostructures on n-type porous silicon: X-ray absorption and X-ray excited optical luminescence', Langmuir, Vol. 20, No. 11, pp.4690-4695.
83. Zhou, X-T., Sham, T.K. and Lee, S.T. (2005) 'Fabrication, morphology, structure and photoluminescence of ZnS and CdS nanoribbons', J. Appl. Phys., Vol. 98, No. 10, pp.024312(1-5).
84. Rosenberg, R.A., Shenoy, G.K., Heigl, F., Lee, S.T., Kim, P-S.G., Zhou, X.T. and Sham, T.K. (2005) 'Effects of in situ vacuum annealing on the surface and luminescent properties of ZnS nanowires', Appl. Phys. Lett., Vol. 86, No. 26, pp.263115(1-3).
85. Yamamoto, H. (1998) 'Zinc sulfide', in Vij, D.R. and Singh, N. (Eds.): Luminescence and Related Properties of II-VI Semiconductors, Nova Science Publishers, Inc., Commack, p.169.
86. Rosenberg, R.A., Shenoy, G.K., Heigl, F., Kim, P.S., Zhou, X.T. and Sham, T.K. (2005) 'Direct observation of the local structure of luminescence sites in nanoparticles', Appl. Phys. Lett., Vol. 87, No. 6, pp.253105(1-3).
87. Zhang, P., Naftel, S.J. and Sham, T.K. (2001) 'Multichannel detection x-ray absorption near edge structures study on the structural characteristics of dendrimer-stabilized CdS quantum dots', J. Appl. Phys., Vol. 90, No. 6, pp.2755-2759.
88. Zhang, P., Kim, P.S. and Sham, T.K. (2001) 'Nanostructured CdS prepared on porous silicon substrate: structure, electronic, and optical properties', J. Appl. Phys., Vol. 91, No. 9, pp.6038-6043.
89. Zhou, X.T., Sham, T.K., Shan, Y. Y., Duan, X.F., Lee, S.T. and Rosenberg, R.A. (2005) 'Onedimensional zigzag GaN nanostructures', J. Appl. Phys., Vol. 97, No. 10, pp.104315(1-4).
90. Nakamura, S. (1998) 'The role of structural imperfection in GaN based blue light emitting diode and laser diode', Science, Vol. 281, pp.956-961.
91. Fasol, G. (1996) 'Room-temperature blue GaN laser diode', Science, Vol. 272, pp.1751.
92. Gilbert, B., Frazer, B.H., Zhang, H., Huang, F., Banfield, J.F., Haskel, D, Lang, J.C., Srajer, G. and de Stasio, G. (2002) 'X-ray absorption spectroscopy of the cubic and hexagonal polytypes of zinc sulfide', Phys. Rev. B, Vol. 66, No. 24, pp.245205(1-6).
93. Sun, X.H., Lam, S., Sham, T.K., Heigl, F., Jurgensen, A. and Wong, N.B. (2005) 'Synthesis and synchrotron light induced luminescence of ZnO nanostructures: nanowires, nano-needles, nanoflowers and tubular whiskers', J. Phys. Chem. B, Vol. 109, No. 8, pp.3120-3125.
94. Look, D.C. (2001) 'Recent advances in ZnO materials and devices', Mater. Sci. Eng. B, Vol. 80, pp.383-387.
95. Huang, M.H., Mao, S., Feick, H., Yan, H.Q., Wu, Y.Y., Kind, H., Weber, E., Russo, R. and Yang, P.D. (2001) 'Room-temperature ultraviolet nanowire nanolasers', Science, Vol. 292, pp.1897-1899.
96. Hu, J.Q. and Bando, Y. (2003) 'Growth and optical properties of single-crystal tubular ZnO whiskers', Appl. Phys. Lett., Vol. 82, No. 9, pp.1401-1403.
97. Pan, Z.W., Dai, Z.R. and Wang, Z.L. (2001) 'Nanobelt of semiconducting oxides', Science, Vol.291, pp.1947-1949.
98. Yan, H.Q., He R.R., Johnson, J., Law, M., Saykally, R.J. and Yang, P.D. (2003) 'Dendritic nanowire ultraviolet laser array', J. Am. Chem. Soc., Vol. 125, No. 16, pp.4728-4729.
99. Kong, X.Y. and Wang, Z.L. (2003) 'Spontaneous polarization-induced nanohelixes, nanosprings, and nanorings of piezoelectric nanobelts', Nano Lett., Vol. 3, No. 12, pp.1625-1631.
100. Gao, P.X. and Wang, Z.L. (2004) 'Nanopropeller arrays of zinc oxide', Appl. Phys. Lett., Vol. 84, No. 15, pp.2883-2885.
101. Dai, Y., Zhang, Y. and Wang, Z.L. (2003) 'The octa-twin tetraleg ZnO nanostructures', Solid State Commun., Vol. 126, No. 11, pp.629-633.
102. Arnold, M., Avouris, P., Pan, Z.W. and Wang, Z.L. (2003) 'Field-effect transistors based on single semiconducting oxide nanobelts', J. Phys. Chem. B, Vol. 107, No. 3, pp.659-663.
103. 60: buckminsterfullerene', Nature, Vol. 318, pp.162-163.
104. Iijima, S. (1991) 'Helical microtubules of graphitic carbon', Nature, Vol. 354, pp.56-58.
105. Seke, K., Ishii, H. and Ouchi, Y. (2002) 'Functional organic materials studied using UPS and NEXAFS', in Sham, T.K. (Ed.): Chemical Applications of Synchrotron Radiations Part I, World Scientific, Singapore, pp.386-461.
106. Ade, H. and Urquhart, S. (2002) 'NEXAFS spectroscopy and microscopy of natural and synthetic polymer' in 'Chemical application of inelastic x-ray scattering", in Sham, T.K. (Ed.): Chemical Applications of Synchrotron Radiations Part I, World Scientific, Singapore, pp.285-355.
107. Tang, Y.H., Sham, T.K., Hu, Y-F., Lee, C.S. and Lee, S.T. (2002) 'Near edge X-ray absorption fine structure study of helicity and defects in carbon nanotubes', Chem. Phys. Lett., Vol. 366, Nos. 5-6, pp.636-641.
108. Tang, Y.H., Zhang, P., Hu, Y-F., Sun, X.H., Fung, M.K., Zhang, Y.F., Lee, C.S., Lee, S.T. and Sham, T.K. (2001) 'Amorphous carbon nanowires: a precursor to multi-wall carbon nanotubes', Appl. Phys. Lett., Vol. 79, No. 23, pp.3773-3775.
109. Imamura, M., Shimada, H., Matsubayashi, N., Yumura, M., Uchida, K., Oshima, S., Kuriki, Y., Yoshimura, Y., Sato, T. and Nishijima, A. (1994) 'C K-edge X-ray absorption near-edge structure of carbon nanotubes', Jpn. J. Appl. Phys., Vol. 33, pp.L1016-L1018.
110. Kuzuo, R., Terauchi, M., Tanaka, M. and Saito, Y. (1994) 'Electron energy loss spectra of single-shell carbon nanotubes', Jpn. J. Appl. Phys., Vol. 33, pp.L1316-L1319.
111. Gruen, D.M. and Buckley-Golder, I. (1998) 'Diamond films: recent developments', MRS Bulletin, Vol. 23, pp.16-23.
112. Angus, J.C. and Hayman, C. (1988) 'Low pressure, mertastable growth of diamond and diamondlike phase', Science, Vol. 241, pp.913-921.
113. Zhou, X.T., Lai, H.L., Peng, H.Y., Sun, C., Zhang, W.J., Wang, N., Bello, I. Lee, CS. and Lee, S.T. (2000) 'Heteroepitaxial nucleation of diamond on Si(100) via double bias-assisted hot filament chemical vapor deposition', Diamond Relat. Mater., Vol. 9, pp.134-139.
114. Lee, S.T., Peng, H.Y., Zhou, X.T., Wang, N., Lee, C.S., Bello, I. and Lifshitz, Y. (2000) 'A nucleation site and mechanism leading to epitaxial growth of diamond films', Science, Vol.287, pp.104-106.
115. Chakrabarti, K., Chakrabati, R., Chattopadhyay, K.K., Chaudhuri, S. and Pal, A.K. (1998) 'Nano-diamond films produced from CVD of camphor', Diamond Relat. Mater., Vol. 7, pp.845-852.
116. Chang, Y.K., Hsieh, H.H., Pong, W.F., Tsai, M-H., Chien, F.Z., Tseng, P.K., Chen, L.C., Wang, T.Y., Chen, K.H., Bhusari, D.M., Yang J.R. and Lin, S.T. (1999) 'Quantum confinement effect in diamond nanocrystals studied by x-ray-absorption spectroscopy', Phys. Rev. Lett., Vol. 82, No. 26, pp.5377-5380.
117. Morar, J.F., Himpsel, F.J., Hollinger, G., Hughes, G. and Jordan, J.L. (1985) 'Observation of a C-Is core exciton in diamond',Phys. Rev. Lett., Vol. 54, No. 17, pp.1960-1963.
118. Matsumoto, S., Sato, Y., Tsutsumi, M. and Setaka, N. (1982) 'Growth of diamond particles from methane-hydrogen gas', J. Mater. Sci., Vol. 17, pp.3106-3112.
119. Zhou, X.T., Sham, T.K., Chan, C.Y., Zhang, W.J., Bello, I, Lee, S.T., Heigl, F., Jürgensen, A. and Hofsäss, H. (2006) 'Preferable orientation of turbostratic BN basal planes from an X-ray absorption study', J. Mater. Res., Vol. 21, No. 1, pp.147-152.
120. X-ray calculator, CXRO, Web: http://www-cxro.lbl.gov/.
121. Widmayer, P., Boyen, H-G., Ziemann, P., Reinke, P. and Oelhafen, P. (1999) 'Electron spectroscopy on boron nitride thin films: comparison of near-surface to bulk electronic properties', Phys. Rev. B, Vol. 59, No. 7, pp.5233-5241.
122. Zhou, X-T., Sham, T.K., Zhang, W., Chan, C.Y. and Bello, I. (2006) 'Cubic phase content and structure of BN films from an X-ray absorption study', Anal. Chem., Vol. 78, pp.6314-6319.
123. 2 nanoribbons: direct evidence for the origin of the blue luminescence and the role of surface states', Appl. Phys. Lett., Vol. 89, pp.21309.
124. Sham T.K. and Rosenberg, R.A. (2007) 'X-ray excited optical luminescence: understanding the light emission properties of silicon based nanostructures', ChemPhysChem, Vol. 8, No. 18, pp.2557-2567.