Enhancing the electrical properties of MoS2 through nonradiative energy transfer
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2017Access:
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Gough, J.J., O'Brien, M., McEvoy, N., Bell, A.P., Duesberg, G.S., Bradley, A.L., Enhancing the electrical properties of MoS2 through nonradiative energy transfer, 11th International Congress on Engineered Materials Platforms for Novel Wave Phenomena (Metamaterials) , 2017, 124-126, 8107862Abstract:
In this study highly efficient nonradiative energy transfer from semiconductor quantum dots to monolayer MoS 2 with an efficiency of ~99% is demonstrated. Although the energy transfer efficiency is close to unity, there is little enhancement of the MoS 2 photoluminescence intensity. MoS 2 samples of varying layer thickness were electrically contacted and the optoelectronic performance of the devices was studied before and after adding quantum dots in a sensitizing layer. We find photocurrent enhancements as large as ~12 fold for monolayer MoS 2 devices and enhancements as high as ~4 fold for few layer devices with no change in the photocurrent with the MoS 2 devices of bulk-like thicknesses after adding the QDs.
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http://people.tcd.ie/mcevoynihttp://people.tcd.ie/bradlel
http://people.tcd.ie/duesberg
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Engineered Materials Platforms for Novel Wave Phenomena (Metamaterials), 11th International Congress onType of material:
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Molybdenum, Sulfur, Photoconductivity, Performance evaluation, Optical sensors, Contacts, Energy exchangeDOI:
http://dx.doi.org/10.1109/MetaMaterials.2017.8107862Metadata
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