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Raman Spectroscopic Analysis of p-doped Bridged InP Nanowire

  • Ataur Sarkar (a1), M. Saif Islam (a2), Sungsoo Yi (a3) and A. Alec Talin (a4)

Abstract

Raman spectroscopy was performed on magnesium (Mg) doped InP nanowires bridged between single crystal vertical silicon electrodes using a green laser (λ∼ 532 nm). First order TO-phonon and LO phonon-plasmon peaks observed at 305 cm−1 and 345 cm−1, respectively, are consistent with those for bulk single crystal InP. Misorientation of the nanowires is found to influence the TO and LO peak intensities. Bottom broadening up to ∼20 cm−1 of the TO peak due to the energy dispersion in the shifted Stokes spectrum is observed in long (∼6 μm) nanowires. Raman measurements indicated a trace of uncatalyzed InP on the insulating silicon oxide substrate and was verified through the electrical measurements of leakage currents before and after the nanowire growth. Initial investigation reveals that Raman spectroscopy can be a very useful in the study of nanowire heterostructures.

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[1] Raman, C. V., “A change of wave-length in light scattering,” Nature, vol. 121, pp. 619–619, Jan-Jun 1928.
[2] Ball, D. W., “Theory of Raman spectroscopy,” Spectroscopy, vol. 16, no. 11, Nov 2001.
[3] Ball, D. W., “Rayleigh and Raman scattering,” Spectroscopy, vol. 16, no. 2, Feb 2001.
[4] Guo, X. D., Li, R. X., Hang, Y., Xu, Z. Z., Yu, B. K., Ma, H. L., and Sun, X. W., “Raman spectroscopy and luminescent properties of ZnO nanostructures fabricated by femtosecond laser pulses,” Materials Letters, vol. 61, pp. 45834586, Sep 2007.
[5] Olego, D. and Cardona, M., “Raman-scattering by 2 LO-Phonons near -Gamma in GaAs,” Solid State Communications, vol. 39, pp. 10711075, 1981.
[6] Zeiri, L., Patla, I., Acharya, S., Golan, Y., and Efrima, S., “Raman spectroscopy of ultranarrow CdS nanostructures,” Journal of Physical Chemistry C, vol. 111, pp. 1184311848, Aug 16 2007.
[7] Cusco, R., Artus, L., Ibanez, J., Blanco, N., Gonzalez-Diaz, G., Rahman, M., and Long, A. R., “Comparison of Raman-scattering and Shubnikov-de Haas measurements to determine charge density in doped semiconductors,” Journal of Applied Physics, vol. 88, pp. 65676570, Dec 1 2000.
[8] Gu, P., Tani, M., Sakai, K., and Yang, T. R., “Detection of terahertz radiation from longitudinal optical phonon-plasmon coupling modes in InSb film using an ultrabroadband photoconductive antenna,” Applied Physics Letters, vol. 77, pp. 17981800, Sep 18 2000.
[9] Piscanec, S., Cantoro, M., Ferrari, A. C., Zapien, J. A., Lifshitz, Y., Lee, S. T., Hofmann, S., and Robertson, J., “Raman spectroscopy of silicon nanowires,” Physical Review B, vol. 68, pp. -, Dec 2003.
[10] Gupta, R., Xiong, Q., Mahan, G. D., and Eklund, P. C., “Surface optical phonions in gallium phosphide nanowires,” Nano Letters, vol. 3, pp. 17451750, Dec 2003.
[11] Gupta, R., Xiong, Q., Adu, C. K., Kim, U. J., and Eklund, P. C., “Laser-induced Fano resonance scattering in silicon nanowires,” Nano Letters, vol. 3, pp. 627631, May 2003.
[12] Bonse, J., Wrobel, J. M., Brzezinka, K. W., Esser, N., and Kautek, W., “Femtosecond laser irradiation of indium phosphide in air: Raman spectroscopic and atomic force microscopic investigations,” Applied Surface Science, vol. 202, pp. 272282, Dec 30 2002.
[13] Zeiri, L. and Efrima, S., “Surface-enhanced Raman scattering (SERS) of microorganisms,” Israel Journal of Chemistry, vol. 46, pp. 337346, 2006.
[14] Olego, D. and Cardona, M., “Raman scattering by coupled LO-phonon-plasmon modes and forbidden TO-phonon Raman scattering in heavily doped p-type GaAs,” Physical Review B, vol. 24, pp. 72177232, December 15 1981.
[15] Islam, M. S., Sharma, S., Kamins, T. I., and Williams, R. S., “A novel interconnection technique for manufacturing nanowire devices,” Applied Physics A-Materials Science & Processing, vol. 80, pp. 11331140, Mar 2005.

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