Abstract
The effect of dimensionality and nanostructure on thermoelectric properties in Bi2Te3-based nanomaterials is summarized. Stoichiometric, single-crystalline Bi2Te3 nanowires were prepared by potential-pulsed electrochemical deposition in a nanostructured Al2O3 matrix, yielding transport in the basal plane. Polycrystalline, textured Sb2Te3 and Bi2Te3 thin films were grown at room temperature using molecular beam epitaxy and subsequently annealed at 250°C. Sb2Te3 films revealed low charge carrier density of 2.6 × 1019 cm−3, large thermopower of 130 μV K−1, and large charge carrier mobility of 402 cm2 V−1 s−1. Bi2(Te0.91Se0.09)3 and (Bi0.26Sb0.74)2Te3 nanostructured bulk samples were prepared from as-cast materials by ball milling and subsequent spark plasma sintering, yielding grain sizes of 50 nm and thermal diffusivities reduced by 60%. Structure, chemical composition, as well as electronic and phononic excitations were investigated by x-ray and electron diffraction, nuclear resonance scattering, and analytical energy-filtered transmission electron microscopy. Ab initio calculations yielded point defect energies, excitation spectra, and band structure. Mechanisms limiting the thermoelectric figure of merit ZT for Bi2Te3 nanomaterials are discussed.
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L.D. Hicks and M.S. Dresselhaus, Phys. Rev. B 47, 12727 (1993).
R. Venkatasubramanian, E. Siivola, T. Colpitts, and B. O’Quinn, Nature (London) 413, 597 (2001).
L. Trahey, C.R. Becker, and A.M. Stacy, Nano Lett. 7, 2535 (2007).
L. Li, Y.W. Yang, X.H. Huang, G.H. Li, and L.D. Zhang, Nanotechnology 17, 1706 (2006).
J.H. Zhou, C.G. Jin, J.H. Seol, X.G. Li, and L. Shi, Appl. Phys. Lett. 87, 133109 (2005).
C.G. Jin, X.Q. Xiang, C. Jia, W.F. Liu, W.L. Cai, L.Z. Yao, and X.G. Li, J. Phys. Chem. B 108, 1844 (2004).
B. Huang, C. Lawrence, A. Gross, G.-S. Hwang, N. Ghafouri, S.-W. Lee, H. Kim, C.-P. Li, C. Uher, K. Najafi, and M. Kaviany, J. Appl. Phys. 104, 113710 (2008).
L.W. da Silva, M. Kaviany, and C. Uher, J. Appl. Phys. 97, 114903 (2005).
L.M. Goncalves, C. Couto, P. Alpuim, A.G. Rolo, F. Völklein, and J.H. Correia, Thin Solid Films 518, 2816 (2010).
H. Zou, D.M. Rowe, and S.G.K. Williams, Thin Solid Films 408, 270 (2002).
B. Poudel, Q. Hao, Y. Ma, Y. Lan, A. Minnich, B. Yu, X. Yan, D. Wang, A. Muto, D. Vashaee, X. Chen, J. Liu, M.S. Dresselhaus, G. Chen, and Z. Ren, Science 320, 634 (2008).
Y.Q. Cao, X.B. Zhao, T.J. Zhu, X.B. Zhang, and J.P. Tu, Appl. Phys. Lett. 92, 143106 (2008).
W. Xie, J. He, H.J. Kang, X. Tang, S. Zhu, M. Laver, S. Wang, J.R.D. Copley, C.M. Brown, Q. Zhang, and T.M. Tritt, Nano Lett. 10, 3283 (2010).
D.G. Ebling, A. Jacquot, H. Böttner, L. Kirste, J. Schmidt, and M. Aguirre, J. Electron. Mater. 38, 1450 (2009).
J. Lee, S. Farhangfar, J. Lee, L. Cagnon, R. Scholz, U. Gösele, and K. Nielsch, Nanotechnology 19, 365701 (2008).
N. Peranio, E. Leister, W. Töllner, O. Eibl, and K. Nielsch, Adv. Funct. Mater. 22, 151 (2012).
J.D. König, M. Winkler, S. Buller, W. Bensch, U. Schürmann, L. Kienle, and H. Böttner, J. Electron. Mater. 40, 1266 (2011).
H. Böttner, A. Schubert, H. Kölbel, A. Gavrikov, A. Mahlke, and J. Nurnus, Proceedings of the 23rd International Conference on Thermoelectrics (ICT 2004), Adelaide, Australia, 2004, Paper No. 9, (Piscataway, NJ: IEEE, 2004).
N. Peranio, M. Winkler, Z. Aabdin, J. König, H. Böttner, and O. Eibl, Phys. Status Solidi A 209, 289 (2012).
N. Peranio and O. Eibl, Phys. Status Solidi A 204, 3243 (2007).
N. Peranio and O. Eibl, J. Appl. Phys. 103, 024314 (2008).
N. Peranio, Z. Aabdin, W. Töllner, M. Winkler, J. König, O. Eibl, K. Nielsch, and H. Böttner, MRS Proc. 1329 (2011). doi:10.1557/opl.2011.1238.
D.M. Rowe, CRC Handbook of Thermoelectrics, Chap. 19 (Boca Raton, FL: CRC, 1995).
M. Heidelmann, J. Barthel, and L. Houben, Ultramicroscopy 109, 1447 (2009).
H.-C. Wille, R.P. Hermann, I. Sergueev, U. Pelzer, A. Möchel, T. Claudio, J. Perßon, R. Rüffer, A. Said, and Yu.V. Schvyd’ko, Europhys. Lett. 91, 62001 (2010).
I. Sergueev, H.-C. Wille, R.P. Hermann, D. Bessas, Y.V. Shvyd’ko, M. Zajac, and R. Rüffer, J. Synchrotron Radiat. 18, 802 (2011).
G.R. Miller and C.-Y. Li, J. Phys. Chem. Solids 26, 173 (1965).
J. Horák, K. Čermák, and L. Koudelka, J. Phys. Chem. Solids 47, 805 (1986).
A. Hashibon and C. Elsässer, Phys. Rev. B 84, 144117 (2011).
J.E. Cornett and O. Rabin, Appl. Phys. Lett. 98, 182104 (2011).
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Aabdin, Z., Peranio, N., Eibl, O. et al. Nanostructure, Excitations, and Thermoelectric Properties of Bi2Te3-Based Nanomaterials. J. Electron. Mater. 41, 1792–1798 (2012). https://doi.org/10.1007/s11664-012-1997-6
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DOI: https://doi.org/10.1007/s11664-012-1997-6