Skip to main content Accessibility help
×
Home

Dynamics of LO phonons in InN studied by subpicosecond time-resolved Raman spectroscopy

  • Kong-Thon Tsen (a1)

Abstract

The phonon dynamics of both the A 1(LO) and the E 1 (LO) phonons in InN has been studied by time-resolved Raman spectroscopy on a subpicosecond time scale. From the temperature-dependence of their lifetimes, we demonstrate that both phonons decay primarily into a large wavevector TO phonon and a large wavevector TA/LA phonon consistent with the accepted phonon dispersion relationship for wurtzite InN. Their lifetimes have been found to decrease from 2.2 ps, at the low electron-hole pair density of5x1017 cm -3 to 0.25 ps, at the highest density of2x1019 cm -3. Our experimental findings demonstrate that carrier-density dependence of LO phonon lifetime is a universal phenomenon in polar semiconductors.

Copyright

References

Hide All
1 Strite, S. Morkoc, H. J. Vac. Sci. Technol B10, 1237(1992).
2 Mohammad, S.N. Morkoc, H. Prog. Quantum. Electron. 20, 361(1996).
3 Morkoc, H. Nitride Semiconductors and Devices, (Springer-Verlag, New York, 1999).
4 Inushima, T. Mamutin, V.V. Vekshin, V.A. Ivanov, S.V. Sakon, T. Motokawa, M. Ohoya, S. J. Cryst. Growth 227/228, 481(2001).
5 Davydov, V.Yu. Klochikhin, A.A. Seisyan, R.P. Emtsev, V.V. Ivanov, S.V. Bechstedt, F. Furthmüller, J., Harima, H. Mudryi, A.V. Aderhold, J. Semchinova, O. Graul, J. Phys. Status Solidi, B229, R1(2002); V.Yu., Davydov A.A. Klochikhin, V.V., Emtsev, S.V., Ivanov, V.V., Vekshin, F., Bechstedt, J. Furthmüller, H., Harima, A.V., Mudryi, A., Hashimoto, A., Yamamoto, J., Aderhold, J., Graul, E.E., Haller B230, R4(2002); V.Yu., Davydov, A.A., Klochikhin V.V., Emtsev, D.A., Kurdyukov, S.V., Ivanov, V.A., Vekshin, F., Bechstedt J. Furthmüller, J., Aderhold, J., Graul, A.V., Mudryi, H., Harima, A., Hashimoto, A., Yamamoto, E.E., Haller, B234, 787(2002).
6 Wu, J. Walukiewicz, W. Yu, K.M. Ager, J.W. III , Haller, E.E. Lu, H. Schaff, W.J. Saito, Y. Nanishi, Y. Appl. Phys. Lett. 80, 3967(2002).
7 Wu, J. Walukiewicz, W. Yu, K.M. Ager, J.W. III , Haller, E.E. Lu, H. Schaff, W.J. Appl. Phys. Lett. 80, 4741(2002).
8 Yamamoto, A. Sugita, K. Takatsuka, H. Hashimoto, A. Davydov, V. Yu. J. Cryst. Growth 261, 275(2004).
9 O'Leary, S.K., Foutz, B.E. Shur, M.S. Bhapkar, U.V. Eastman, L.F. J. Appl. Phys. 83, 826(1998).
10 Bellotti, E. Doshi, B.K. Brennan, K.F. Albrecht, J.D. Ruden, P.P. J. Appl. Phys. 85, 916(1999).
11 Foutz, B.E. O'Leary, S.K., Shur, M.S. Eastman, L.F. J. Appl. Phys. 85, 7727(1999).
12 Liang, W. Tsen, K.T. Ferry, D.K. Lu, H. Schaff, W.J. Appl. Phys. Lett. 84, 3681(2004).
13 Tsen, K.T. Liang, W. Ferry, D.K. Lu, H. Schaff, W.J. Ozgur, U. Fu, Y. Moon, Y.T. Yun, F. Morkoc, H. Everitt, H.O. Superlattices and Microstructures 38, 77(2005).
14 Tsen, K.T. Poweleit, C. Ferry, D.K. Hai Lu and Schaff, W.J. J. Crystal Growth, 288, 289(2006).
15 For a review, see “Ultrafast Spectroscopy of Semiconductors and Semiconductor Nanostructures”, Shah, J. (Springer-Verlag, New York, 1996), p. 161224.
16 Lu, H. Schaff, W.J. Eastman, L.F. Wu, J., Walukiewicz, W. Look, D.C. Molnar, R.J. Proc. Mater. Res. Soc. Symp. 743, L4(2003).
17 Tsen, K.T. Kiang, J.G. Ferry, D.K. Morkoc, H. Appl. Phys. Lett. 89, 112111(2006).
18 Grann, E.D. Tsen, K.T.. Ferry, D.K. Salvador, A. Botcharev, A. and Morkoc, H.. Phys. Rev. B 56, 9539(1997).
19 Tsen, K.T. in “Ultrafast Physical processes in semiconductors”, edited by Tsen, K.T. Vol. 67, Semiconductors and Semimetals (Academic Press, Boston, 2001), p. 109149.
20 Kasic, A. Schubert, M. Saito, Y. Nanishi, Y. Wagner, G. Phys. Rev. B65, 115206(2002).
21 Xu, Y.N. Ching, W.Y. Phys. Rev. B48, 4335(1993).
22 Conwell, E.M. in “High Field Transport in Semiconductors” (Academic Press, New York, 1967).
23 Klemens, P.G.(1966). Phys. Rev. 148, 845.
24 Ridley, B.K.(1996). J. Phys.: Condensed Matter 8, L511.
25 Davydov, V. Yu. Emtsev, V.V. Goncharuk, I.N. Smirnov, A.N. Petrikov, V.D. Mamutin, V.V. Vekshin, V.A. Ivanov, S.V. Smirnov, M.B. Inushima, T. Appl. Phys. Lett. 75, 3297(1999).
26 Tsen, K.T. Kiang, J.G. Ferry, D.K. Lu, H. Schaff, W.J. H-W Lin and Gwo, S. Appl. Phys. Lett. 90, 152107(2007).
27 Harima, H. J. Phys.: Condensed Matter 14, R967(2002).
28 Abstreiter, G. Cardona, M. and Pinczuk, A. in “Light Scattering in Solids IV”, edited by Cardona, M. and Güntherodt, G. (Springer-Verlag, New York, 1986), p. 5, and references therein.
29 Kash, J.A. Tsang, J.C. Solid State Electron. 31, 419(1988).
30 Tsang, J.C. Kash, J.A. Jha, S.S. Physica 134B, 184(1985).
31 Tsen, K.T. Kiang, J.G. Ferry, D.K. and Morkoc, H. Appl. Phys. Lett. 89, 112111(2006).
32 Matulionis, A. Private communications.
33 Dyson, A. and Ridley, B.K. J. Appl. Phys. 103, 114507(2008).

Keywords

Dynamics of LO phonons in InN studied by subpicosecond time-resolved Raman spectroscopy

  • Kong-Thon Tsen (a1)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed