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Updated: Dec 9, 2025

Ohmic Contact Fabrication Using a Focused-ion Beam Technique and Electrical Characterization for Layer Semiconductor Nanostructures
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Neutral Exciton Diffusion in Monolayer MoS2

Shiekh Zia Uddin1,2, Hyungjin Kim1,2, Monica Lorenzon3

  • 1Electrical Engineering and Computer Sciences, University of California, Berkeley, California 94720, United State.

ACS Nano
|September 10, 2020
PubMed
Summary

We measured exciton diffusion lengths in monolayer molybdenum disulfide (MoS2) by controlling doping. Neutral excitons diffused 1.5 μm, while charged excitons (trions) diffused 300 nm, clarifying transport limits for optoelectronics.

Keywords:
MoS2diffusionexcitonquantum yieldtransporttrion

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