Sadeghi Hatef
J Nanosci Nanotechnol. 2014 Jun;14(6):4178-84. doi: 10.1166/jnn.2014.8914.
The analytical electrical transport model of the Silicene, a single layer of sp3 bonded silicon atoms in the honeycomb lattice structure as a channel in the field effect transistor configuration is presented in this paper. Although the carrier concentration of the Silicene shows similar behavior to Graphene, there are some differences in the conductance behavior. Presented model shows increment in the total carrier and the conductance with the gate voltage as expected for conventional semiconductors which affected by the temperature only in the neutrality point. The minimum conductance is increased by the temperature whereas it remains stable in the degenerate regime. Presented analytical model is in good agreement with the numerical conductance calculation based on the implementation of the non-equilibrium Green's function method coupled to the density functional theory.
本文提出了硅烯的解析电输运模型,硅烯是一种具有蜂窝晶格结构的单层sp3键合硅原子,用作场效应晶体管结构中的沟道。尽管硅烯的载流子浓度表现出与石墨烯相似的行为,但在电导行为上存在一些差异。所提出的模型表明,总载流子和电导随栅极电压增加,这与仅在中性点受温度影响的传统半导体预期一致。最小电导随温度增加,而在简并区域保持稳定。所提出的解析模型与基于非平衡格林函数方法与密度泛函理论相结合的数值电导计算结果吻合良好。