TY  - JOUR
AU  - Gharib, Mustafa
AU  - Yates, A. J.
AU  - Sanders, Stephen
AU  - Gebauer, Johannes
AU  - Graf, Sebastian
AU  - Ziefuß, Anna Rosa
AU  - Nonappa
AU  - Kassier, Günther
AU  - Rehbock, Christoph
AU  - Barcikowski, Stephan
AU  - Weller, Horst
AU  - Alabastri, Alessandro
AU  - Nordlander, Peter
AU  - Parak, Wolfgang
AU  - Chakraborty, Indranath
TI  - Golden Plasmophores with Tunable Photoluminescence and Outstanding Thermal and Photothermal Stability
JO  - Advanced optical materials
VL  - 12
IS  - 14
SN  - 2195-1071
CY  - Weinheim
PB  - Wiley-VCH
M1  - PUBDB-2024-01806
SP  - 2302833
PY  - 2024
AB  - Among various hybrid nanomaterials, the combination of plasmonic nanoparticles and fluorophores in a single multifunctional nanoplatform, so-called plasmophores, has attracted significant attention in different fields such as dark field, fluorescence, and photoacoustic imaging, biosensing, photothermal, and photodynamic therapy. Herein, author report a facile and controlled synthesis route of hybrid nanoplatforms composed of fluorescent gold nanoclusters (GNCs) coupled to plasmonic gold nanorods (GNRs) using controlled silica (SiO<sub>2</sub>) dielectric spacers of different thicknesses from now on referred to as GNR@SiO<sub>2</sub>@GNC plasmophores. The results show different degrees of plasmon-enhanced fluorescence of the GNCs in their plasmophore hybrid system when placed at different distances from the plasmonic cores of the GNRs. On the other hand, these plasmophores show enhanced thermal stability compared to GNRs@CTAB (CTAB, cetyl trimethyl ammonium bromide). This results also demonstrated that upon annealing at elevated temperatures (800–1000 °C), the GNRs in the plasmophores are more thermally stable and robust than the GNRs@CTAB. More surprisingly, despite the commonly reported very low melting temperature of smaller-size nanocrystals, the GNCs in the plasmophores showed high thermal stability and do not exhibit significant structural changes at elevated temperatures (800–1000 °C). 
LB  - PUB:(DE-HGF)16
DO  - DOI:10.1002/adom.202302833
UR  - https://bib-pubdb1.desy.de/record/607163
ER  -