Enhancing near-infrared photoresponsivity in mos-based photodetectors through mwcnts integration

Abstract

In this paper, we present a novel hybrid material consisting of multiwalled carbon nanotubes (MWCNTs) and molybdenum disulfide (MoS[Formula: see text] with enhanced photoresponsivity in the near-infrared (NIR) region. MoS 2 nanosheets are obtained through chemical exfoliation in NMP solvent, and MWCNTs are grown on these nanosheets using the chemical vapor deposition (CVD) technique. The combination of the NIR transparency of MWCNTs and the high UV light absorption of MoS 2 leads to a substantial increase in the photoresponsivity ([Formula: see text] of the MoS 2 @MWCNTs hybrid compared to bare MoS 2 specifically in the NIR region. Experimental results demonstrate a remarkable enhancement of [Formula: see text] from 18.6 [Formula: see text]A/W to 155.7 [Formula: see text]A/W in the hybrid material, whereas the opposite trend is observed in the case of bare MoS 2 .