Lee Hyunseung, Nguyen Van Tu, Park Ji-Yong, Lee Jieun
Department of Physics and Department of Energy Systems Research, Ajou University, Suwon 16499, Korea.
Department of Physics and Department of Energy Systems Research, Ajou University, Suwon 16499, Korea and Institute of Materials Science, Vietnam Academy of Science and Technology, Hanoi, 100000, Vietnam.
Nanoscale. 2021 Feb 25;13(7):4262-4268. doi: 10.1039/d0nr06510b.
Two-dimensional transition metal dichalcogenides (TMDCs) integrated into photonic structures provide an intriguing playground for the development of novel optoelectronic devices with improved performance. Here, we show the enhanced light emission from TMDC based van der Waals heterostructures through coupling with microsphere cavities. We observe cavity-induced emission enhancement of TMDC materials which varies by an order of magnitude, depending on the size of the microsphere and thickness of the supporting oxide substrate. Furthermore, we demonstrate microsphere cavity-enhanced electroluminescence of a van der Waals light emitting transistor, showing the potential of 2D material based hybrid optoelectronic structures.
集成到光子结构中的二维过渡金属二硫属化物（TMDCs）为开发性能更优的新型光电器件提供了一个引人入胜的平台。在此，我们展示了通过与微球腔耦合，基于TMDC的范德华异质结构实现了增强的光发射。我们观察到TMDC材料的腔诱导发射增强，其增强幅度达一个数量级，这取决于微球的尺寸和支撑氧化物衬底的厚度。此外，我们展示了范德华发光晶体管的微球腔增强电致发光，展现了基于二维材料的混合光电子结构的潜力。
