二维过渡金属硫属化合物的激光发射
发布时间：2019-03-03 17:41
【摘要】：以二硫化钼(MoS_2)为代表的二维过渡金属硫属化合物(TMDs)具有随厚度/层数变化的光学和电学性质,并且展示出独特的激子效应和较高的光学量子产率,在光电子器件中具有很好的应用前景。近年来,基于TMDs材料的光学性质和光电子器件的研究进展迅速,如通过电场、化学掺杂、缺陷等方式实现了对其光致发光(PL)的调控,并极大地提高了PL发射量子产率;基于TMDs边带异质结和垂直异质结的LEDs被广泛研究并获得了较高的光发射效率;以TMDs作为增益介质,并将其与微盘、光子晶体空腔等耦合实现了低阈值激光发射。从TMDs的结构和光学性质出发,总结了TMDs材料PL的调控手段及效果,并介绍TMDs中激光发射的研究进展,最后对基于TMDs的激光发展进行了展望。
[Abstract]:The two-dimensional transition metal sulfur compound (TMDs), represented by molybdenum disulfide (MoS_2), has optical and electrical properties varying with the thickness / layer number, and shows unique exciton effect and high optical quantum yield. It has a good application prospect in optoelectronic devices. In recent years, based on the optical properties of TMDs materials and the research progress of optoelectronic devices, such as electric field, chemical doping, defects and other ways to achieve the photoluminescence (PL) control, and greatly improve the quantum yield of PL emission. The LEDs based on TMDs sideband heterojunction and vertical heterojunction has been extensively studied and high optical emission efficiency has been obtained. TMDs is used as gain medium and coupled with microdisk and photonic crystal cavity to achieve low threshold laser emission. Based on the structure and optical properties of TMDs, the control methods and effects of TMDs material PL are summarized, and the research progress of laser emission in TMDs is introduced. Finally, the development of laser based on TMDs is prospected.
【作者单位】： 东南大学物理系;
【基金】：国家自然科学基金(61422503,61376104) 中央高校基本科研业务费专项资金(3207026405)
【分类号】：TN204
[Abstract]:The two-dimensional transition metal sulfur compound (TMDs), represented by molybdenum disulfide (MoS_2), has optical and electrical properties varying with the thickness / layer number, and shows unique exciton effect and high optical quantum yield. It has a good application prospect in optoelectronic devices. In recent years, based on the optical properties of TMDs materials and the research progress of optoelectronic devices, such as electric field, chemical doping, defects and other ways to achieve the photoluminescence (PL) control, and greatly improve the quantum yield of PL emission. The LEDs based on TMDs sideband heterojunction and vertical heterojunction has been extensively studied and high optical emission efficiency has been obtained. TMDs is used as gain medium and coupled with microdisk and photonic crystal cavity to achieve low threshold laser emission. Based on the structure and optical properties of TMDs, the control methods and effects of TMDs material PL are summarized, and the research progress of laser emission in TMDs is introduced. Finally, the development of laser based on TMDs is prospected.
【作者单位】： 东南大学物理系;
【基金】：国家自然科学基金(61422503,61376104) 中央高校基本科研业务费专项资金(3207026405)
【分类号】：TN204
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