Exciton Dynamics in Suspended Monolayer and Few-Layer MoS2 2D Crystals

• Published in: ACS nano Vol. 7; no. 2; pp. 1072 - 1080
• Main Authors: Shi, Hongyan, Yan, Rusen, Bertolazzi, Simone, Brivio, Jacopo, Gao, Bo, Kis, Andras, Jena, Debdeep, Xing, Huili Grace, Huang, Libai
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 26.02.2013
• Subjects: atomically thin 2D crystal; MoS2; transient absorption spectroscopy; quantum confinement; surface defects; transient absorption microscopy; exciton dynamics

Femtosecond transient absorption spectroscopy and microscopy were employed to study exciton dynamics in suspended and Si3N4 substrate-supported monolayer and few-layer MoS2 2D crystals. Exciton dynamics for the monolayer and few-layer structures were found to be remarkably different from those of th...