Microsphere-coupled light emission control of van der Waals heterostructures

TL;DR

This paper demonstrates enhanced light emission from van der Waals heterostructures of 2D TMDCs by coupling with microsphere cavities, leading to significant emission enhancement and improved electroluminescence in hybrid optoelectronic devices.

Contribution

It introduces a novel method of coupling TMDC heterostructures with microsphere cavities to boost light emission and electroluminescence in 2D material-based devices.

Findings

Cavity-induced emission enhancement varies by an order of magnitude.

Microsphere cavity enhances electroluminescence in TMDC light-emitting transistors.

Potential for improved performance in 2D material optoelectronic devices.

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.