Luminescent vertically oriented nanosheets MoS2by low temperature MOCVD

Abstract

Controlled growth orientation of MoS2 thin films is the key requirement to realize their vast number of applications, as material has strong anisotropic properties, in addition chemically active edge sites over inert in-plane MoS2 flakes is very important for catalytic activities. Here, we demonstrate growth dense and edge-enriched vertically oriented MoS2 (V-MoS2) using MOCVD technique with deposition temperature as low as 250 C. SEM results demonstrated the vertically oriented growth and high density of edge terminated MoS2 sheets. While Raman and XPS confirm MoS2 composition of sheets with good quality. At Room temperature, there is strong photoluminescence emission from sheets due few layer structures.