Significant reduction of thermal conductivity in Si/Ge core-shell nanowires

Nano Letters

Volumn 11, Issue 2, 2011, Pages 618-623

  Hu, Ming ^a,c   Giapis, Konstantinos P ^b   Goicochea, Javier V ^c   Zhang, Xiaoliang ^a   Poulikakos, Dimos ^a  

^a ETH ZURICH   (Switzerland)

^b California Institute of Technology   (United States)

^c IBM RESEARCH ZURICH   (Switzerland)

Author keywords

heat transfer; phonon; Si Ge core shell nanowires; thermal conductivity; thermoelectric materials

Indexed keywords

CORE-SHELL NANOWIRES; DIFFUSIVE MODES; HIGH FREQUENCY; LONG WAVELENGTH; NONEQUILIBRIUM MOLECULAR DYNAMICS SIMULATION; PARTICIPATION RATIOS; PHONON MODE; REDUCTION OF THERMAL CONDUCTIVITY; ROOM TEMPERATURE; SI NANOWIRE; SI/GE; SI/GE CORE-SHELL NANOWIRES; SINGLE-CRYSTALLINE; THERMAL TRANSPORT PROPERTIES; THERMOELECTRIC MATERIAL; UNIT CELLS; VIBRATIONAL DENSITY;

GERMANIUM; HEAT TRANSFER; MOLECULAR DYNAMICS; NANOWIRES; PHONONS; SHELLS (STRUCTURES); SILICON; THERMOELECTRIC EQUIPMENT; THERMOELECTRICITY;

THERMAL CONDUCTIVITY;

GERMANIUM; NANOTUBE; SILICON;

ARTICLE; CHEMISTRY; CONFORMATION; CRYSTALLIZATION; MACROMOLECULE; MATERIALS TESTING; METHODOLOGY; NANOTECHNOLOGY; PARTICLE SIZE; POROSITY; SURFACE PROPERTY; THERMAL CONDUCTIVITY; ULTRASTRUCTURE;

CRYSTALLIZATION; GERMANIUM; MACROMOLECULAR SUBSTANCES; MATERIALS TESTING; MOLECULAR CONFORMATION; NANOTECHNOLOGY; NANOTUBES; PARTICLE SIZE; POROSITY; SILICON; SURFACE PROPERTIES; THERMAL CONDUCTIVITY;

EID: 79851498881     PISSN: 15306984     EISSN: 15306992     Source Type: Journal    
DOI: 10.1021/nl103718a     Document Type: Article

References (31)

1. Hochbaum, A. I.; Chen, R.; Delgado, R. D.; Liang, W.; Garnett, E. C.; Najarian, M.; Majumdar, A.; Yang, P. Nature 2008, 451, 163
2. Donadio, D.; Galli, G. Phys. Rev. Lett. 2009, 102 195901
3. Chen, J.; Zhang, G.; Li, B. W. Nano Lett. 2010, 10, 3978
4. Hippalgaonkar, K.; Huang, B. L.; Chen, R. K.; Sawyer, K.; Ercius, P.; Majumdar, A. Nano Lett. 2010, 10, 4341
5. Lu, W.; Xiang, J.; Timko, B. P.; Wu, Y.; Lieber, C. M. Proc. Natl. Acad. Sci. U.S.A. 2005, 102, 10046
6. Xiang, J.; Lu, W.; Hu, Y.; Wu, Y.; Yan, H.; Lieber, C. M. Nature 2006, 441, 489
7. Becker, B.; Schelling, P. K.; Phillpot, S. R. J. Appl. Phys. 2006, 99 123715
8. Stillinger, F. H.; Weber, T. A. Phys. Rev. B 1985, 31, 5262
9. Ding, K.; Anderson, H. C. Phys. Rev. B 1986, 34, 6987
10. Roland, C.; Gilmer, G. H. Phys. Rev. B 1993, 47, 16286
11. Karimi, M.; Kaplan, T.; Mostoller, M.; Jesson, D. E. Phys. Rev. B 1993, 47, 9931
12. Gomes, C. J.; Madrid, M.; Goicochea, J. V.; Amon, C. H. J. Heat Transf. 2006, 128, 1114
13. Goicochea, J. V.; Madrid, M.; Amon, C. J. Heat Transf. 2010, 132 012401
14. Laradji, M.; Landau, D. P.; Dunweg, B. Phys. Rev. B 1995, 51, 4894
15. Skye, A.; Schelling, P. K. J. Appl. Phys. 2008, 103, 113524
16. Landry, E. S.; McGaughey, A. J. H. J. Appl. Phys. 2010, 107 013521
17. Huang, X. P.; Huai, X. L.; Liang, S. Q.; Wang, X. W. J. Phys. D: Appl. Phys. 2009, 42 095416
18. Chen, J.; Zhang, G.; Li, B. W. Appl. Phys. Lett. 2009, 95 073117
19. Plimpton, S. J. Comput. Phys. 1995, 117, 1
20. Nosé, S. J. Chem. Phys. 1984, 81, 511
21. Hoover, W. G. Phys. Rev. A 1985, 31, 1695
22. Schelling, P. K.; Phillpot, S. R.; Keblinski, P. Phys. Rev. B 2002, 65 144306
23. Yang, X.; Toi, A. C.; Tian, R. Nanotechnology 2010, 21 155704
24. Ponomareva, I.; Srivastava, D.; Menon, M. Nano Lett. 2007, 7, 1155
25. Mingo, N. Phys. Rev. B 2003, 68, 113308
26. Li, D.; Wu, Y.; Kim, P.; Shi, L.; Yang, P.; Majumdar, A. Appl. Phys. Lett. 2003, 83, 2934
27. Wang, S. C.; Liang, X. G.; Xu, X. H.; Ohara, T. J. Appl. Phys. 2009, 105 014316
28. The thermal conductivity of a Ge nanowire is calculated to be about 80% of that for a Si nanowire of the same cross-section.
29. Yang, R.; Chen, G.; Dresselhaus, M. S. Nano Lett. 2005, 5, 1111
30. Yang, N.; Zhang, G.; Li, B. W. Nano Today 2010, 5, 85
31. Bodapati, A.; Schelling, P. K.; Phillpot, S. R.; Keblinski, P. Phys. Rev. B 2006, 74 245207