Aufsatz in einer Fachzeitschrift
Photoconductivity of solution-processed MoS2 films
Details zur Publikation
Autor(inn)en: | Cunningham, G.; Khan, U.; Backes, C.; Hanlon, D.; McCloskey, D.; Donegan, J.; Coleman, J. |
Verlag: | ROYAL SOC CHEMISTRY |
Publikationsjahr: | 2013 |
Zeitschrift: | Journal of Materials Chemistry C |
Seitenbereich: | 6899-6904 |
Abkürzung der Fachzeitschrift: | J. Mater. Chem. C |
Jahrgang/Band : | 1 |
Heftnummer: | 41 |
Erste Seite: | 6899 |
Letzte Seite: | 6904 |
Seitenumfang: | 6 |
ISSN: | 2050-7526 |
DOI-Link der Erstveröffentlichung: |
Zusammenfassung, Abstract
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 similar to 1 kW m(-2) 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 at low intensity was similar to 10(-4) A per W at 15 V. This work demonstrates the potential for liquid-exfoliated, inorganic nanosheets to be fabricated into low-cost optoelectronic devices.
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 similar to 1 kW m(-2) 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 at low intensity was similar to 10(-4) A per W at 15 V. This work demonstrates the potential for liquid-exfoliated, inorganic nanosheets to be fabricated into low-cost optoelectronic devices.
