Nonradiative Energy Transfer and Photocurrent Enhancements in Hybrid Quantum Dot-MoS<inf>2</inf> Devices

Duesberg, Georg; Coleman, Jonathan; Bradley, Louise; Mc Evoy, Niall; Mc Closkey, David

doi:http://dx.doi.org/10.1109/ICTON.2018.8473673

Nonradiative Energy Transfer and Photocurrent Enhancements in Hybrid Quantum Dot-MoS<inf>2</inf> Devices

Files

ICTON 2018 - Bradley_author_copy.pdf (370.89 KB)

Date

2018

Authors

Access

openAccess

Citation

Gough, J.J. and McEvoy, N. and O'Brien, M. and Bell, A.P. and McManus, J. and McCloskey, D. and Boland, J.B. and Coleman, J.N. and Duesberg, G.S. and Louise Bradley, A., Nonradiative Energy Transfer and Photocurrent Enhancements in Hybrid Quantum Dot-MoS<inf>2</inf> Devices, Proceedings of the 20th International Conference on Transparent Optical Networks, 2018 20th International Conference on Transparent Optical Networks (ICTON), 2018-July, 2018, 8473673-

Abstract

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.