Phototransistors based on multilayer MoS2 crystals are demonstrated with a wider spectral response and higher photoresponsivity than single-layer MoS2 phototransistors. Multilayer MoS2 phototransistors further exhibit high room temperature mobilities (>70 cm2V-1s-1), near-ideal subthreshold swings (∼70 mV decade-1), low operating gate biases (<5 V), and negligible shifts in the threshold voltages during illumination.
- transition metal dichalcogenide
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering