Nonradiative Energy Transfer and Photocurrent Enhancements in Hybrid Quantum Dot-MoS2 Devices
- Resource Type
- Conference
- Authors
- Gough, John J.; McEvoy, Niall; O'Brien, Maria; Bell, Alan P.; McManus, John; McCloskey, David; Boland, John B.; Coleman, Jonathan N.; Duesberg, Georg S.; Louise Bradley, A.
- Source
- 2018 20th International Conference on Transparent Optical Networks (ICTON) Transparent Optical Networks (ICTON), 2018 20th International Conference on. :1-4 Jul, 2018
- Subject
- Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Transportation
Molybdenum
Sulfur
Photoconductivity
Energy exchange
Quantum dots
Optical sensors
Market research
nonradiative energy transfer
quantum dots
2D materials
photocurrent
photoresponsivity
- Language
- ISSN
- 2161-2064
The energy transfer mechanism leading to highly efficient nonradiative energy transfer (NRET) from quantum dots (QDs) to monolayer MoS 2 devices has been investigated via a spectral dependence study. The spectral dependence of the NRET from three spectrally separated QD ensembles to monolayer MoS 2 devices reveals that the trends in NRET rates follow the trends in the spectral overlap between the QD emission and MoS 2 absorption spectra, thus verifying that the mechanism for the energy transfer is Förster-type NRET. Furthermore, the dependence of the photocurrent enhancement on the MoS 2 film properties is also explored.