Microsphere-coupled light emission control of van der Waals heterostructures

Abstract

Two-dimensional transition metal dichalcogenides (TMDCs) integrated to 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 van der Waals light emitting transistor, showing the potential of 2D material based hybrid optoelectronic structures.

16 pages, 4 figures

References in corpus (8)

• 2D materials and van der Waals heterostructures
• Electrically Tunable Excitonic Light Emitting Diodes based on Monolayer WSe2 p-n Junctions
• Light-emitting diodes by bandstructure engineering in van der Waals heterostructures
• Electrical Control of Two-Dimensional Neutral and Charged Excitons in a Monolayer Semiconductor
• Controlling the Spontaneous Emission Rate of Monolayer MoS${}_2$ in a Photonic Crystal Nanocavity
• Control of Two-Dimensional Excitonic Light Emission via Photonic Crystal
• Cavity-control of bright and dark interlayer excitons in van der Waals heterostructures
• Coupling interlayer excitons to whispering gallery modes in van der Waals heterostructures