scholarly journals Configuration coordinate energy level diagrams of intervalence and metal-to-metal charge transfer states of dopant pairs in solids

2015 ◽  
Vol 17 (30) ◽  
pp. 19874-19884 ◽  
Author(s):  
Zoila Barandiarán ◽  
Andries Meijerink ◽  
Luis Seijo
Keyword(s):  
Charge Transfer ◽  
Energy Level ◽  
Energy Levels ◽  
Mixed Valence ◽  
Active Centers ◽  
Metal Charge ◽  
Intervalence Charge Transfer ◽  
Metal Charge Transfer ◽  
Configuration Coordinate

Configuration coordinate diagrams, which are normally used in a qualitative manner for the energy levels of active centers in phosphors, are quantitatively obtained here for intervalence charge transfer (IVCT) states of mixed valence pairs and metal-to-metal charge transfer (MMCT) states of heteronuclear pairs, in solid hosts.

A Mixed‐Valence {Fe 13 } Cluster Exhibiting Metal‐to‐Metal Charge‐Transfer‐Switched Spin Crossover

2020 ◽  
Author(s):  
Wen Wen ◽  
Yin‐Shan Meng ◽  
Cheng‐Qi Jiao ◽  
Qiang Liu ◽  
Hai‐Lang Zhu ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Spin Crossover ◽  
Mixed Valence ◽  
Metal Charge ◽  
Metal Charge Transfer

scholarly journals Time-Resolved Spectroscopy of the Metal-to-Metal Charge Transfer Excited State in Dinuclear Cyano-Bridged Mixed-Valence Complexes

2005 ◽  
Vol 44 (15) ◽  
pp. 5530-5536 ◽  
Author(s):  
Brendan P. Macpherson ◽  
Paul V. Bernhardt ◽  
Andreas Hauser ◽  
Stéphane Pagès ◽  
Eric Vauthey
Keyword(s):  
Excited State ◽  
Charge Transfer ◽  
Mixed Valence ◽  
Time Resolved ◽  
Metal Charge ◽  
Time Resolved Spectroscopy ◽  
Metal Charge Transfer

scholarly journals Thermally induced reversible metal-to-metal charge transfer in mixed-valence {Fe III 4 Fe II 4 }cubes

CCS Chemistry ◽  
2021 ◽  
pp. 1-14
Author(s):  
Maolin You ◽  
De-Xuan Gan ◽  
Yi-Fei Deng ◽  
Dong Shao ◽  
Yin-Shan Meng ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Mixed Valence ◽  
Thermally Induced ◽  
Metal Charge ◽  
Metal Charge Transfer

scholarly journals Photoluminescence from Gold and Silver Nanoparticles

Nano Hybrids ◽  
2014 ◽  
Vol 6 ◽  
pp. 1-35 ◽  
Author(s):  
Manjunatha Pattabi ◽  
Rani M. Pattabi
Keyword(s):  
Charge Transfer ◽  
Radiative Recombination ◽  
Noble Metals ◽  
Radiative Decay ◽  
Energy Levels ◽  
Particle Surface ◽  
Underlying Mechanism ◽  
Gold And Silver Nanoparticles ◽  
Metal Charge ◽  
Metal Charge Transfer

This review is an attempt to highlight some of the significant results of the work carried out on the photoluminescence from nanoparticles of the noble metals, particularly gold and silver, over the past two decades. Although quite an immense amount of reports can be found, those that have contributed in throwing some light on the underlying mechanism behind photoluminescence have been considered here. Interband radiative recombination of electrons in metals or photoluminescence (PL), though very weak, was first reported in Au, Cu and Au-Cu alloys. A simple model attributes the PL to the radiative recombination of conduction band electrons below the Fermi energy with d-band holes. Most of the mechanisms are based on this concept. Only small sized clusters are known to exhibit luminescence, with the appearance of additional features which changed with the surfactants suggesting ligand to metal charge transfer. Further, the observation that more polar ligands do indeed enhance the luminescence intensity supports ligand to metal charge transfer. A non-radiative decay of excited electrons from 6sp-band to interface electron energy levels or bands (IEEB), that could be created due to charge transfer from the ligand to the metal core, followed by radiative recombination of electrons from these levels with the hole in the d-band could be another possible mechanism, which is supported by the size independence of the PL emission peak position. However, it is possible that these mechanisms operate independently or even simultaneously depending on various factors like size, ligands, dispersion medium, particle surface topography and so on.

A Mixed‐Valence {Fe 13 } Cluster Exhibiting Metal‐to‐Metal Charge‐Transfer‐Switched Spin Crossover

2020 ◽  
Vol 59 (38) ◽  
pp. 16393-16397
Author(s):  
Wen Wen ◽  
Yin‐Shan Meng ◽  
Cheng‐Qi Jiao ◽  
Qiang Liu ◽  
Hai‐Lang Zhu ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Spin Crossover ◽  
Mixed Valence ◽  
Metal Charge ◽  
Metal Charge Transfer
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