College of Physics, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China.
Key Laboratory of Aerospace Information Materials and Physics (NUAA), MIIT, Nanjing 211106, China.
Phys Chem Chem Phys. 2023 Feb 15;25(7):5694-5700. doi: 10.1039/d2cp05441h.
Borophene has been reported as the latest very promising 2D material. We theoretically investigate the thermal radiation of β borophene. β borophene has been composited on Ag substrate. Theoretical research frequently mentions three types of model of β borophene. The energy bands of the three models are different. Homogeneous and inversion symmetric models have a gapless Dirac cone near the (') point, while they are gapped in the inversion non-symmetric model. The homogeneous model has gapless triplet fermions and three-band touching points at high-symmetry points. The optical conductivity exhibits peaks due to the energy transition of high-symmetry points. The radiation spectrum follows Wien's displacement law in homogeneous and inversion symmetric models, while it is broken in the inversion non-symmetric model. The total energy radiation changes as the voltage increases for the three β borophene models. The radiation of energy can be controlled by applying a suitable voltage.
硼烯被报道为最新的极具前景的二维材料。我们从理论上研究了β硼烯的热辐射。β硼烯被复合在 Ag 衬底上。理论研究经常提到β硼烯的三种模型。这三种模型的能带不同。在具有均匀和反转对称性的模型中，在（'）点附近存在无带隙的狄拉克锥，而在反转非对称模型中则存在带隙。在具有均匀性的模型中，在高对称点处存在无带隙三重态费米子和三能带接触点。由于高对称点的能量跃迁，光学电导率表现出峰值。在具有均匀和反转对称性的模型中，辐射谱遵循维恩位移定律，而在反转非对称模型中则被破坏。对于三种β硼烯模型，总能量辐射随电压的增加而变化。通过施加适当的电压，可以控制能量的辐射。
