论文标题
基于六角硼硝酸盐封装的石墨烯的注射驱动热灯发射器的理论分析
Theoretical analysis of injection driven thermal light emitters based on graphene encapsulated by hexagonal boron nitride
论文作者
论文摘要
我们基于垂直六角氮化硼/石墨烯层/六边形硝酸盐层（HBNL/GL/GL/HBNL）的拟议注入（电）注射（电）驱动的热灯发射器（IDLE）的设备模型。怠速的操作与通过侧触点的侧向注射和通过HBNL（组合注射）加热2DEHP的横向注射和垂直注射，从而在GL中产生的热二维电子血浆（2DEHP）的光发射有关。注射电流的时间变化导致载体有效温度的变化及其在GL中的密度变化，从而导致输出光的调节。我们确定限制空闲效率和最大光调制频率的机制。与标准的白炽灯相比，在调制频率上，载液和晶格温度之间的差距很大，可以在调制频率上进行相当大的调制深度。我们将怠速与正在考虑的联合注射和使用横向电流加热的怠速进行比较。 获得的结果可用于空闲优化。
We develop the device model for the proposed injection (electrically) driven thermal light emitters (IDLEs) based on the vertical Hexagonal Boron Nitride Layer/Graphene Layer/ Hexagonal Boron Nitride Layer (hBNL/GL/hBNL) heterostructures and analyze their dynamic response. The operation of the IDLEs is associated with the light emission of the hot two-dimensional electron-hole plasma (2DEHP) generated in the GL by both the lateral injection from the side contacts and the vertical injection through the hBNL (combined injection) heating the 2DEHP. The temporal variation of the injection current results in the variation of the carrier effective temperature and their density in the GL leading to the modulation of the output light. We determine the mechanisms limiting the IDLE efficiency and the maximum light modulation frequency. A large difference between the carrier and lattice temperatures the IDLEs with an effective heat removal enables a fairly large modulation depth at the modulation frequencies about dozen of GHz in contrast to the standard incandescent lamps. We compare the IDLEs with the combined injection under consideration and IDLEs using the carrier Joule heating by lateral current. The obtained results can be used for the IDLE optimization.
