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@ARTICLE{Aabdin:21696,
      author       = {Aabdin, Z. and Peranio, N. and Eibl, O. and Töllner, W.
                      and Nielsch, K. and Bessas, D. and Hermann, R. and Winkler,
                      M. and König, J. and Böttner, H. and Pacheco, V. and
                      Schmidt, J. and Hashibon, A. and Elsässer, C.},
      title        = {{N}anostructure, excitations, and thermoelectric properties
                      of {B}i2{T}e3-based nanomaterials},
      journal      = {Journal of electronic materials},
      volume       = {41},
      issn         = {0361-5235},
      address      = {Warrendale, Pa},
      publisher    = {TMS},
      reportid     = {PreJuSER-21696},
      pages        = {1792 - 1798},
      year         = {2012},
      note         = {Financial support by the German Research Foundation (DFG)
                      is gratefully acknowledged, Priority Programme 1386
                      "Nanostructured Thermoelectric Materials: Theory, Model
                      Systems and Controlled Synthesis.'' O.E. and N.P. thank Dr.
                      Martina Luysberg for help with aberration-corrected STEM at
                      the Ernst Ruska Center for Microscopy and Spectroscopy with
                      Electrons, Forschungszentrum Julich. R.P.H. and D.B.
                      acknowledge funding from the Helmholtz Association of German
                      Research Center (NG-407) as well as the European Synchrotron
                      Radiation Facility and the Advanced Photon Source for
                      provision of beam time at ID22N and 6-IDD, respectively.},
      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
                      250A degrees C. Sb2Te3 films revealed low charge carrier
                      density of 2.6 x 10(19) cm(-3), large thermopower of 130 V
                      K-1, and large charge carrier mobility of 402 cm(2) V-1
                      s(-1). Bi-2(Te0.91Se0.09)(3) and (Bi0.26Sb0.74)(2)Te-3
                      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. calculations yielded point
                      defect energies, excitation spectra, and band structure.
                      Mechanisms limiting the thermoelectric figure of merit for
                      Bi2Te3 nanomaterials are discussed.},
      keywords     = {J (WoSType)},
      cin          = {PGI-4 / JCNS-2 / JARA-FIT},
      ddc          = {670},
      cid          = {I:(DE-Juel1)PGI-4-20110106 / I:(DE-Juel1)JCNS-2-20110106 /
                      $I:(DE-82)080009_20140620$},
      pnm          = {Grundlagen für zukünftige Informationstechnologien
                      (FUEK412) / 544 - In-house Research with PNI (POF2-544)},
      pid          = {G:(DE-Juel1)FUEK412 / G:(DE-HGF)POF2-544},
      shelfmark    = {Engineering, Electrical $\&$ Electronic / Materials
                      Science, Multidisciplinary / Physics, Applied},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000304205100132},
      doi          = {10.1007/s11664-012-1997-6},
      url          = {https://juser.fz-juelich.de/record/21696},
}