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@ARTICLE{Gu:890370,
      author       = {Gu, Wen-Hao and Zhang, Yi and Guo, Jun and Cai, Jian-Feng
                      and Zhu, Yu-Ke and Zheng, Fengshan and Jin, Lei and Xu,
                      Jingtao and Feng, Jing and Ge, Zhen-Hua},
      title        = {{R}ealizing high thermoelectric performance in n-type
                      {S}n{S}e polycrystals via ({P}b, {B}r) co-doping and
                      multi-nanoprecipitates synergy},
      journal      = {Journal of alloys and compounds},
      volume       = {864},
      issn         = {0925-8388},
      address      = {Lausanne},
      publisher    = {Elsevier},
      reportid     = {FZJ-2021-00915},
      pages        = {158401 -},
      year         = {2021},
      abstract     = {Both p- and n-type SnSe single crystals have been reported
                      to possess high thermoelectric performances, thus
                      highlighting the possibility for commercialization.
                      Polycrystalline SnSe that has better mechanical properties
                      however possesses inferior thermoelectric properties
                      compared to single crystal SnSe. In this work, n-type
                      polycrystalline SnSe0.95 + x $wt\%$ PbBr2 (x = 0, 0.5, 1,
                      and 1.5) samples were synthesized by combining mechanical
                      alloying and spark plasma sintering technology. The effects
                      of PbBr2 doping on thermoelectric performance of SnSe were
                      studied in detail. The results show that the carrier
                      concentration was dramatically increased from 2.51 × 1017
                      cm−3 in pure SnSe0.95 to 1.79 × 1019 cm−3 in SnSe0.95 +
                      1.5 $wt\%$ PbBr2, further resulting in an enhanced
                      electrical conductivity. Multi-nanoprecipitates are present
                      in the samples, including SnO, SnPb and SnBrxOy, which
                      possibly affect the Seebeck coefficient and the lattice
                      thermal conductivity. A peak ZT value of 1.1 was obtained at
                      773 K for the SnSe0.95 + 1.0 $wt\%$ PbBr2 sample. This work
                      highlights that PbBr2 is an effective dopant to improve the
                      TE performance of n-type polycrystalline SnSe.},
      cin          = {ER-C-1},
      ddc          = {540},
      cid          = {I:(DE-Juel1)ER-C-1-20170209},
      pnm          = {535 - Materials Information Discovery (POF4-535)},
      pid          = {G:(DE-HGF)POF4-535},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000624942300050},
      doi          = {10.1016/j.jallcom.2020.158401},
      url          = {https://juser.fz-juelich.de/record/890370},
}