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@ARTICLE{Feng:817683,
      author       = {Feng, Dan and Zheng, Fengshan and Wu, Di and Wu, Minghui
                      and Li, Wei and Huang, Li and Zhao, Li-Dong and He, Jiaqing},
      title        = {{I}nvestigation into the extremely low thermal conductivity
                      in {B}a heavily doped {B}i{C}u{S}e{O}},
      journal      = {Nano energy},
      volume       = {27},
      issn         = {2211-2855},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2016-04351},
      pages        = {167 - 174},
      year         = {2016},
      abstract     = {Heavily doped Bi0.875Ba0.125CuSeO alloys were found to
                      exhibit the highest ever ZT value in oxygenous
                      thermoelectric systems, attributed to the extremely low
                      thermal conductivity. In this report, we investigated the
                      microstructural reason of the thermal conductivity in Ba-
                      heavily doped BiCuSeO through scanning transmission electron
                      microscopy (STEM). We found a large amount of nano-scale
                      BaSeO3 precipitates dispersed widely in BiCuSeO matrix
                      grains; besides, for the first time, we provide visual
                      evidence of Ba substituting Bi atoms in Bi–O layers.
                      Combined with DFT calculations, we conclude that intrinsic
                      lattice vibration anharmonicity, together with Ba–Bi
                      alloying and excess BaSeO3 precipitation, is responsible for
                      the observed low lattice thermal conductivity in
                      experiments.},
      cin          = {PGI-5},
      ddc          = {540},
      cid          = {I:(DE-Juel1)PGI-5-20110106},
      pnm          = {143 - Controlling Configuration-Based Phenomena (POF3-143)},
      pid          = {G:(DE-HGF)POF3-143},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000384910500020},
      doi          = {10.1016/j.nanoen.2016.07.003},
      url          = {https://juser.fz-juelich.de/record/817683},
}