Plasmonic Enhancement of Nanophosphor Upconversion Luminescence in Au Nanohole Arrays
Abstract
Arrays of subwavelength holes (nanoholes) in Au films were computationally designed, fabricated, and used as templates to localize and enhance the luminescence of upconversion nanophosphors (UCNPs)hexagonal phase NaYF<sub>4</sub> doped with Yb<sup>3+</sup> and Er<sup>3+</sup>. The dimensions of nanohole Au arrays were designed to accept only a single UCNP upon particle filling and with a periodicity to be resonant with the excitation wavelength of the upconversion. Frequency-dependent luminescence enhancements of up to 35-fold and a concomitant shortening of the UCNP luminescence rise time were observed, consistent with simulations of plasmonic enhancement of the UCNP absorption- Text
- Journal contribution
- Biophysics
- Medicine
- Cell Biology
- Neuroscience
- Sociology
- Immunology
- Infectious Diseases
- Space Science
- Chemical Sciences not elsewhere classified
- Physical Sciences not elsewhere classified
- nanohole
- plasmonic enhancement
- UCNP absorption
- Nanohole ArraysArrays
- upconversion nanophosphors
- UCNP luminescence rise time
- Plasmonic Enhancement
- Nanophosphor Upconversion Luminescence
- excitation wavelength
- subwavelength holes
Similar works
This paper was published in FigShare.
Having an issue?
Is data on this page outdated, violates copyrights or anything else? Report the problem now and we will take corresponding actions after reviewing your request.