Photoconductivity of solution-processed MoS2 films
Item Type:Journal Article
Citation:Cunningham, G., Khan, U., Backes, C., Hanlon, D., McCloskey, D., Donegan, J.F., Coleman, J.N., Photoconductivity of solution-processed MoS2 films, .Journal of Materials Chemistry C, 1, 41, 2013, 6899-6904
Cunningham et al JMCC.pdf (Published (author's copy) - Peer Reviewed) 439.6Kb
Solution-exfoliated MoS2 nano-platelets were formed into thin films by deposition onto a water surface followed by transfer to indium tin oxide coated glass. After drying, a gold electrode was evaporated on top to give a sandwich structure with quasi-Ohmic contacts. Illumination of this device with broadband light of ~1 kW/m2 intensity gave a fourfold increase in conductivity. The photocurrent increased sub-linearly with intensity and exponentially with time indicating the presence of traps. The photo-responsively was ~10-4 A/W at 15 V, competitive with other 2-dimensional photoconductors. This work demonstrates the potential for liquid-exfoliated, inorganic nanosheets to be fabricated into low-cost optoelectronic devices.
Type of material:Journal Article
Series/Report no:.Journal of Materials Chemistry C;
Availability:Full text available