Atomistic modeling of the directed-assembly of bimetallic Pt-Ru nanoclusters on Ru(0001)-supported monolayer graphene

2013 ◽  
Vol 138 (13) ◽  
pp. 134703 ◽  
Author(s):  
Yong Han ◽  
Albert K. Engstfeld ◽  
R. Juergen Behm ◽  
James W. Evans
Keyword(s):  
Directed Assembly ◽  
Monolayer Graphene ◽  
Atomistic Modeling

scholarly journals Directed assembly of Ru nanoclusters on Ru(0001)-supported graphene: STM studies and atomistic modeling

2012 ◽  
Vol 86 (8) ◽  
Author(s):  
Albert K. Engstfeld ◽  
Harry E. Hoster ◽  
R. Juergen Behm ◽  
Lyle D. Roelofs ◽  
Xiaojie Liu ◽  
...  
Keyword(s):  
Directed Assembly ◽  
Atomistic Modeling

Directed Assembly of Nanowires using Silicon Grooves and Localized Surface Treatments

2008 ◽  
Author(s):  
Sabrina Habtoun ◽  
Christian Bergaud ◽  
Monique Dilhan ◽  
David Bourrier
Keyword(s):  
Directed Assembly ◽  
Surface Treatments

Enhanced-Fluorescence of a Dye on DNA- assembled Gold Nano-Dimers Discriminated by Lifetime Correlation Spectroscopy

2017 ◽  
Author(s):  
Pedro M. R. Paulo ◽  
David Botequim ◽  
Agnieszka Jóskowiak ◽  
Sofia Martins ◽  
Duarte M. F. Prazeres ◽  
...  
Keyword(s):  
Single Molecule ◽  
Fluorescence Emission ◽  
Directed Assembly ◽  
Plasmon Mode ◽  
Correlation Spectroscopy ◽  
Enhanced Fluorescence ◽  
Detection Volume ◽  
Relaxation Component ◽  
Good Agreement ◽  
Confocal Detection

<div> <div> <div> <p>We have employed DNA-directed assembly to prepare dimers of gold nanoparticles and used their longitudinally coupled plasmon mode to enhance the fluorescence emission of an organic red-emitting dye, Atto-655. The plasmon- enhanced fluorescence of this dye using dimers of 80 nm particles was measured at single molecule detection level. The top enhancement factors were above 1000-fold in 71% of the dimers within a total of 32 dimers measured, and, in some cases, they reached almost 4000-fold, in good agreement with model simulations. Additionally, fluorescence lifetime correlation analysis enabled the separation of enhanced from non-enhanced emission simultaneously collected in our confocal detection volume. This approach allowed us to recover a short relaxation component exclusive to enhanced emission that is attributed to the interaction of the dye with DNA in the interparticle gaps. </p> </div> </div> </div>

scholarly journals Strong localization in suspended monolayer graphene by intervalley scattering

2021 ◽  
Vol 103 (8) ◽  
Author(s):  
Cenk Yanik ◽  
Vahid Sazgari ◽  
Abdulkadir Canatar ◽  
Yaser Vaheb ◽  
İsmet İ. Kaya
Keyword(s):  
Monolayer Graphene ◽  
Strong Localization ◽  
Intervalley Scattering
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