Exciting clusters, what does off-resonance actually mean?

Nanoscale ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 242-252
Author(s):  
Goonay Yousefalizadeh ◽  
Shideh Ahmadi ◽  
Nicholas J. Mosey ◽  
Kevin G. Stamplecoskie
Keyword(s):  
Noble Metal ◽  
Biomedical Imaging ◽  
Metal Clusters ◽  
Photophysical Properties ◽  
New Class

Noble metal clusters have unique photophysical properties, especially as a new class of materials for multiphoton biomedical imaging.

Unravelling the origin of dual photoluminescence in Au2Cu6 clusters by triplet sensitization and photon upconversion

2022 ◽  
Author(s):  
Daichi Arima ◽  
Yoshiki Niihori ◽  
Masaaki Mitsui
Keyword(s):  
Noble Metal ◽  
Metal Clusters ◽  
Photophysical Properties ◽  
Single Atom ◽  
Chemical Compositions ◽  
Luminescent Materials

Ligand-protected, noble-metal clusters are promising as luminescent materials and photosensitizers because of their diverse chemical compositions and structures, as well as their easily tunable electronic and photophysical properties with single-atom...

scholarly journals Luminescent Supramolecular Nano- or Microstructures Formed in Aqueous Media by Amphiphile-Noble Metal Complexes

2020 ◽  
Vol 2020 ◽  
pp. 1-24 ◽  
Author(s):  
Carmen Cretu ◽  
Loredana Maiuolo ◽  
Domenico Lombardo ◽  
Elisabeta I. Szerb ◽  
Pietro Calandra
Keyword(s):  
Noble Metal ◽  
Smart Materials ◽  
Self Assembly ◽  
Noble Metals ◽  
Photophysical Properties ◽  
Aqueous Media ◽  
Molecular Architecture ◽  
Stimuli Responsive ◽  
Panoramic View ◽  
Amphiphilic Molecules

The involvement of metal ions within the self-assembly spontaneously occurring in surfactant-based systems gives additional and interesting features. The electronic states of the metal, together with the bonds that can be established with the organic amphiphilic counterpart, are the factors triggering new photophysical properties. Moreover, the availability of stimuli-responsive supramolecular amphiphile assemblies, able to disassemble in a back-process, provides reversible switching particularly useful in novel approaches and applications giving rise to truly smart materials. In particular, small amphiphiles with an inner distribution, within their molecular architecture, of various polar and apolar functional groups, can give a wide variety of interactions and therefore enriched self-assemblies. If it is joined with the opportune presence and localization of noble metals, whose chemical and photophysical properties are undiscussed, then very interesting materials can be obtained. In this minireview, the basic concepts on self-assembly of small amphiphilic molecules with noble metals are shown with particular reference to the photophysical properties aiming at furnishing to the reader a panoramic view of these exciting problematics. In this respect, the following will be shown: (i) the principles of self-assembly of amphiphiles that involve noble metals, (ii) examples of amphiphiles and amphiphile-noble metal systems as representatives of systems with enhanced photophysical properties, and (iii) final comments and perspectives with some examples of modern applications.

Surface plasmons in quantum-sized noble-metal clusters: TDDFT quantum calculations and the classical picture of charge oscillations

2015 ◽  
Vol 17 (42) ◽  
pp. 28379-28386 ◽  
Author(s):  
Hans-Christian Weissker ◽  
Xóchitl López-Lozano
Keyword(s):  
Surface Plasmons ◽  
Noble Metal ◽  
Noble Metals ◽  
Metal Clusters ◽  
Quantum Calculations ◽  
Electronic Density ◽  
Charge Oscillation ◽  
Classical Picture

The dynamics of the electronic density corresponds to a collective charge oscillation, albeit influenced by the inhomogeneity of noble metals.

Fragmentation of doubly charged noble metal clusters

1991 ◽  
Vol 20 (1-4) ◽  
pp. 101-104 ◽  
Author(s):  
I. Katakuse ◽  
H. Ito ◽  
T. Ichihara
Keyword(s):  
Noble Metal ◽  
Metal Clusters ◽  
Doubly Charged

Morphological Study of Sub-nanometer Noble Metal Clusters by Electron Beam-Assisted Redistribution

2012 ◽  
Vol 18 (S2) ◽  
pp. 1036-1037 ◽  
Author(s):  
S.I. Sanchez ◽  
S.A. Bradley ◽  
W. Sinkler
Keyword(s):  
Electron Beam ◽  
Noble Metal ◽  
Morphological Study ◽  
Metal Clusters

Extended abstract of a paper presented at Microscopy and Microanalysis 2012 in Phoenix, Arizona, USA, July 29 – August 2, 2012.

Emerging new generation electrocatalysts for the oxygen reduction reaction

2016 ◽  
Vol 4 (29) ◽  
pp. 11156-11178 ◽  
Author(s):  
C. Retna Raj ◽  
Arpan Samanta ◽  
Seung Hyo Noh ◽  
Siniya Mondal ◽  
Takeyoshi Okajima ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Noble Metal ◽  
Recent Progress ◽  
Reduction Reaction ◽  
Cathodic Reduction ◽  
Metal Free ◽  
New Class ◽  
New Generation

Recent progress in the development of a new class of inexpensive metal-free and non-noble metal-based electrocatalysts for the cathodic reduction of oxygen is discussed.

Dynamical aspects and the role of IVR for the reactivity of noble metal clusters towards molecular oxygen

2007 ◽  
Vol 43 (1-3) ◽  
pp. 201-204
Author(s):  
R. Mitrić ◽  
U. Werner ◽  
C. Bürgel ◽  
V. Bonačić-Koutecký
Keyword(s):  
Molecular Oxygen ◽  
Noble Metal ◽  
Metal Clusters
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