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Thermal conductivities of phosphorene allotropes from first-principle calculations: a comparative study

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      Abstract

      Phosphorene has attracted tremendous interest recently due to its intriguing electronic properties. However, the thermal transport properties of phosphorene, especially for its allotropes, are still not well-understood. In this work, we calculate the thermal conductivities of five phosphorene allotropes ({\alpha}-, \b{eta}-, {\gamma}-, {\delta}- and {\zeta}-phase) by using phonon Boltzmann transport theory combined with first-principles calculations. It is found that the {\alpha}-phosphorene exhibits considerable anisotropic thermal transport, while it is less obvious in the other four phosphorene allotropes. The highest thermal conductivity is found in the \b{eta}-phosphorene, followed by {\delta}-, {\gamma}- and {\zeta}-phase. The much lower thermal conductivity of the {\zeta}-phase can be attributed to its relatively complex atomic configuration. It is expected that the rich thermal transport properties of phosphorene allotropes can have potential applications in the thermoelectrics and thermal management.

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      Journal
      2016-01-27
      2016-04-07
      1601.07302

      http://arxiv.org/licenses/nonexclusive-distrib/1.0/

      Custom metadata
      cond-mat.mes-hall cond-mat.mtrl-sci

      Condensed matter, Nanophysics

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