Long-Range and High-Efficiency Plasmon-Assisted Förster Resonance Energy Transfer

Hamza, Abdullah O.; Al-Dulaimi, Ali; Bouillard, Jean Sebastien G.; Adawi, Ali M.

Abstract

The development of a long-range and efficient Förster resonance energy transfer (FRET) process is essential for its application in key enabling optoelectronic and sensing technologies. Via controlling the delocalization of the donor’s electric field and Purcell enhancements, we experimentally demonstrate long-range and high-efficiency Förster resonance energy transfer using a plasmonic nanogap formed between a silver nanoparticle and an extended silver film. Our measurements show that the FRET range can be extended to over 200 nm while keeping the FRET efficiency over 0.38, achieving an efficiency enhancement factor of ∼108 with respect to a homogeneous environment. Reducing Purcell enhancements by removing the extended silver film increases the FRET efficiency to 0.55, at the expense of the FRET rate. We support our experimental findings with numerical calculations based on three-dimensional finite difference time-domain calculations and treat the donor and acceptor as classical dipoles. Our enhanced FRET range and efficiency structures provide a powerful strategy to develop novel optoelectronic devices and long-range FRET imaging and sensing systems.

Citation

Hamza, A. O., Al-Dulaimi, A., Bouillard, J. S. G., & Adawi, A. M. (2023). Long-Range and High-Efficiency Plasmon-Assisted Förster Resonance Energy Transfer. Journal of physical chemistry. C, 127(44), 21611–21616. https://doi.org/10.1021/acs.jpcc.3c04281

• Journal Article Type: Article
• Acceptance Date: Oct 9, 2023
• Online Publication Date: Oct 27, 2023
• Publication Date: Nov 9, 2023
• Deposit Date: Nov 7, 2023
• Publicly Available Date: Nov 8, 2023
• Journal: Journal of Physical Chemistry C
• Print ISSN: 1932-7447
• Electronic ISSN: 1932-7455
• Publisher: American Chemical Society
• Peer Reviewed: Peer Reviewed
• Volume: 127
• Issue: 44
• Pages: 21611–21616
• DOI: https://doi.org/10.1021/acs.jpcc.3c04281
• Keywords: FRET; Plasmonic; Plasmonic nanogap; FDTD
• Public URL: https://hull-repository.worktribe.com/output/4427325