Enhancing Förster nonradiative energy transfer via plasmon interaction

L. J. Higgins; X. Zhang; C. A. Marocico; G. P. Murphy; V. K. Karanikolas; Y. K. Gun'ko; V. Lesnyak; N. Gaponik; A. S. Susha; A. L. Rogach; P. J. Parbrook; A. L. Bradley

doi:10.1117/12.2229032

18 April 2016 Enhancing Förster nonradiative energy transfer via plasmon interaction

L. J. Higgins, X. Zhang, C. A. Marocico, G. P. Murphy, V. K. Karanikolas, Y. K. Gun'ko, V. Lesnyak, N. Gaponik, A. S. Susha, A. L. Rogach, P. J. Parbrook, A. L. Bradley

Author Affiliations +

Proceedings Volume 9884, Nanophotonics VI; 98840P (2016) https://doi.org/10.1117/12.2229032
Event: SPIE Photonics Europe, 2016, Brussels, Belgium

Abstract

Plasmon-enhanced nonradiative energy transfer is demonstrated in two inorganic semiconductor systems. The first is comprised of colloidal nanocrystal CdTe donor and acceptor quantum dots, while the second is a hybrid InGaN quantum well-CdSe/ZnS quantum dot donor-acceptor system. Both structures are in a planar geometry. In the first case a monolayer of Au nanospheres is sandwiched between donor and acceptor quantum dot monolayers. The largest energy transfer efficiency is seen when the donor is ~3 nm from the Au nanopshere. A plasmon-enhanced energy transfer efficiency of ~ 40% has been achieved for a separation of 3 nm between the Au nanopshere monolayer and the acceptor monolayer. Despite the increased energy transfer efficiency these conditions result in strong quenching of the acceptor QD emission. By tuning the Au nanosphere concentration and Au nanosphere-acceptor QD separation the acceptor QD emission can be increased by a factor of ~2.8. The plasmon-enhanced nonradiative energy transfer is observed to extend over larger distances than conventional Forster resonance energy transfer. Under the experimental conditions reported herein, it can be described by the same d-4 dependence but with a larger characteristic distance. Using a Ag nanobox array plasmonic component plasmon-enhanced nonradiative energy transfer has also demonstrated from an InGaN quantum well to a ~80 nm thick layer of CdSe/ZnS colloidal quantum dots. An efficiency of ~27% is achieved, with an overall increase in the QD emission by ~70%.

Conference Presentation

Citation Download Citation

L. J. Higgins, X. Zhang, C. A. Marocico, G. P. Murphy, V. K. Karanikolas, Y. K. Gun'ko, V. Lesnyak, N. Gaponik, A. S. Susha, A. L. Rogach, P. J. Parbrook, and A. L. Bradley "Enhancing Förster nonradiative energy transfer via plasmon interaction", Proc. SPIE 9884, Nanophotonics VI, 98840P (18 April 2016); https://doi.org/10.1117/12.2229032

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available