Tuning nanowire lasers via hybridization with two-dimensional materials

Abstract

Mixed dimensional hybrid structures have recently gained increasing attention as promising building blocks for novel electronic and optoelectronic devices. In this context, hybridization of semiconductor nanowires with two-dimensional materials could offer new ways to control and modulate lasing at the nanoscale. In this work, we deterministically fabricate hybrid mixed-dimensional heterostructures composed of ZnO nanowires and MoS2 monolayers with micrometer control over their relative position. First, we show that our deterministic fabrication method does not degrade the optical properties of the ZnO nanowires. Second, we demonstrate that the lasing wavelength of ZnO nanowires can be tuned by several nanometers by hybridization with CVD-grown MoS2 monolayers. We assign this spectral shift of the lasing modes to an efficient carrier transfer at the heterointerface and the subsequent increase of the optical band gap in ZnO (Moss-Burstein effect).

References in corpus (4)

• One nanometer thin carbon nanosheets with tunable conductivity and stiffness
• All-optical polarization and amplitude modulation of second-harmonic generation in atomically thin semiconductors
• Optical spectroscopy of excited exciton states in MoS2 monolayers in van der Waals heterostructures
• Electrically Tunable Four-Wave-Mixing in Graphene Heterogeneous Fiber for Individual Gas Molecule Detection

Cited by in corpus (1)

• A Monolithic Graphene-Functionalized Microlaser for Multispecies Gas Detection