Controlling Plasmon-Induced Resonance Energy Transfer and Hot Electron Injection Processes in Metal@TiO2Core–Shell Nanoparticles

2015 ◽  
Vol 119 (28) ◽  
pp. 16239-16244 ◽  
Author(s):  
Scott K. Cushing ◽  
Jiangtian Li ◽  
Joeseph Bright ◽  
Brandon T. Yost ◽  
Peng Zheng ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Electron Injection ◽  
Hot Electron ◽  
Shell Nanoparticles ◽  
Hot Electron Injection

Plasmon resonance energy transfer and hot electron injection induced high photocurrent density in liquid junction Ag@Ag2S sensitized solar cells

2016 ◽  
Vol 45 (41) ◽  
pp. 16275-16282 ◽  
Author(s):  
Dapeng Wu ◽  
Fujuan Wang ◽  
Hongju Wang ◽  
Kun Cao ◽  
Zhiyong Gao ◽  
...  
Keyword(s):  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Electron Injection ◽  
Photocurrent Density ◽  
Absorption Enhancement ◽  
Hot Electron ◽  
Liquid Junction ◽  
Hot Electron Injection ◽  
Plasmon Resonance Energy Transfer ◽  
Sensitized Solar Cells

Due to plasmon induced absorption enhancement and direct hot electron injection, a high photocurrent density of ∼25.6 mA cm−2 was demonstrated in an Ag@Ag2S co-sensitized solar energy conversion device.

scholarly journals Prospects and applications of plasmon-exciton interactions in the near-field regime

Nanophotonics ◽  
2018 ◽  
Vol 8 (4) ◽  
pp. 613-628 ◽  
Author(s):  
Natalia Kholmicheva ◽  
Luis Royo Romero ◽  
James Cassidy ◽  
Mikhail Zamkov
Keyword(s):  
Energy Transfer ◽  
Near Field ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Dipole Interaction ◽  
Field Energy ◽  
Metal Nanostructures ◽  
Hot Electron ◽  
Hot Electron Injection ◽  
Light Amplification

AbstractPlasmonics is a rapidly developing field at the boundary of fundamental sciences and device engineering, which exploits the ability of metal nanostructures to concentrate electromagnetic radiation. The principal challenge lies in achieving an efficient conversion of the plasmon-concentrated field into some form of useful energy. To date, a substantial progress has been made within the scientific community in identifying the major pathways of the plasmon energy conversion. Strategies based on the hot electron injection and the near-field energy transfer have already shown promise in a number of proof-of-principle plasmonic architectures. Nevertheless, there are several fundamental questions that need to be addressed in the future to facilitate the transition of plasmonics to a variety of applications in both light amplification and optical detection. Of particular interest is a plasmon-induced resonance energy transfer (PIRET) process that couples the plasmon evanescent field to a semiconductor absorber via dipole-dipole interaction. This relatively unexplored mechanism has emerged as a promising light conversion strategy in the areas of photovoltaics and photocatalysis and represents the main focus of the present minireview. Along these lines, we highlight the key advances in this area and review some of the challenges associated with applications of the PIRET mechanism in nanostructured systems.

scholarly journals TiN@TiO 2 Core–Shell Nanoparticles as Plasmon‐Enhanced Photosensitizers: The Role of Hot Electron Injection

2020 ◽  
Vol 14 (5) ◽  
pp. 1900376 ◽  
Author(s):  
Xiaohui Xu ◽  
Aveek Dutta ◽  
Jacob Khurgin ◽  
Alexander Wei ◽  
Vladimir M. Shalaev ◽  
...  
Keyword(s):  
Electron Injection ◽  
Core Shell ◽  
Hot Electron ◽  
Shell Nanoparticles ◽  
Hot Electron Injection ◽  
Core Shell Nanoparticles

scholarly journals Resonance Energy Transfer to Track the Motion of Lanthanide Ions—What Drives the Intermixing in Core-Shell Upconverting Nanoparticles?

Biosensors ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 515
Author(s):  
Philipp U. Bastian ◽  
Nathalie Robel ◽  
Peter Schmidt ◽  
Tim Schrumpf ◽  
Christina Günter ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Bulk Material ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Lanthanide Ions ◽  
Shell Structures ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Acceptor Concentration ◽  
Host Lattices

The imagination of clearly separated core-shell structures is already outdated by the fact, that the nanoparticle core-shell structures remain in terms of efficiency behind their respective bulk material due to intermixing between core and shell dopant ions. In order to optimize the photoluminescence of core-shell UCNP the intermixing should be as small as possible and therefore, key parameters of this process need to be identified. In the present work the Ln(III) ion migration in the host lattices NaYF4 and NaGdF4 was monitored. These investigations have been performed by laser spectroscopy with help of lanthanide resonance energy transfer (LRET) between Eu(III) as donor and Pr(III) or Nd(III) as acceptor. The LRET is evaluated based on the Förster theory. The findings corroborate the literature and point out the migration of ions in the host lattices. Based on the introduced LRET model, the acceptor concentration in the surrounding of one donor depends clearly on the design of the applied core-shell-shell nanoparticles. In general, thinner intermediate insulating shells lead to higher acceptor concentration, stronger quenching of the Eu(III) donor and subsequently stronger sensitization of the Pr(III) or the Nd(III) acceptors. The choice of the host lattice as well as of the synthesis temperature are parameters to be considered for the intermixing process.

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