Strong Thermal Transport Anisotropy and Strain Modulation in Single-Layer Phosphorene

By Z. Ong, Yongqing Cai, Gang Zhang, Yong‐Wei Zhang. 2014

260 citations recorded by the source corpus.

Using first-principles calculations and non-equilibrium Green's function method, we investigate the ballistic thermal transport in single-layer phosphorene. A significant crystallographic orientation dependence of thermal conductance is observed, with room temperature thermal conductance along zigzag direction being 40 percent higher than that along armchair direction. Furthermore, we find that the thermal conductance anisotropy with the orientation can be tuned by applying strain. In particular, the zigzag-oriented thermal conductance is enhanced when a zigzag-oriented strain is applied but decreases when an armchair-oriented strain is applied; whereas the armchair-oriented thermal conductance always decreases when either a zigzag- or an armchair-oriented strain is applied. The present work suggests that the remarkable thermal transport anisotropy and its strain-modulated effect in single-layer phosphorene may be used for thermal management in phosphorene-based electronics and optoelectronic devices.

Subfields: Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/ec6a02cb2c4d555295ff2153460510d63d8e660d

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In Materials Chemistry

1. Yong‐Wei Zhang
2. Gang Zhang
3. Yongqing Cai
4. Z. Ong
5. V. Sorkin

Citations in the corpus

• Strain effects on thermoelectric properties of two-dimensional materials (2015, background): “At the same time, biaxial tensile strain reduces the in-plane thermal conductance [115].”
• Recent Advances in the Study of Phosphorene and its Nanostructures (2017, methodology): “Ong et al.(30) suggested a cross-shape structure for phosphorene-based devices”