title: Highly efficient FRET from a single nitrogen-vacancy center in nanodiamonds to a single organic molecule.
abstract: We show highly efficient fluorescence resonance energy transfer (FRET) between negatively charged nitrogen-vacancy (NV) centers in diamond as donor and dye molecules as acceptor, respectively. The energy transfer efficiency is 86% with particles of 20 nm in size. Calculated and experimentally measured energy transfer efficiencies are in excellent agreement. Owing to the small size of the nanocrystals and careful surface preparation, energy transfer between a single nitrogen-vacancy center and a single quencher was identified by the stepwise change of energy transfer efficiencies due to bleaching of single acceptor molecules. Our studies pave the way toward FRET-based scanning probe techniques using single NV donors.
authors: Institute of Physics, University of Stuttgart, Stuttgart, Germany. j.tisler@physik.uni-stuttgart.de
authors: Julia
authors: J
authors: Tisler
authors: Rolf
authors: R
authors: Reuter
authors: Anke
authors: A
authors: Lämmle
authors: Fedor
authors: F
authors: Jelezko
authors: Gopalakrishnan
authors: G
authors: Balasubramanian
authors: Philip R
authors: PR
authors: Hemmer
authors: Friedemann
authors: F
authors: Reinhard
authors: Jörg
authors: J
authors: Wrachtrup
mesh_terms: D031541:Fluorescence Resonance Energy Transfer; D005456:Fluorescent Dyes / Q000737:chemistry; D008958:Models, Molecular; D008968:Molecular Conformation; D058612:Nanodiamonds / Q000737:chemistry*; D009584:Nitrogen / Q000737:chemistry*; D009930:Organic Chemicals / Q000737:chemistry*
chemical_list: D005456:Fluorescent Dyes; D058612:Nanodiamonds; D009930:Organic Chemicals; D009584:Nitrogen