|
|
|
|
| LEADER |
01000naa a22002652 4500 |
| 001 |
NLM257682961 |
| 003 |
DE-627 |
| 005 |
20231224183345.0 |
| 007 |
cr uuu---uuuuu |
| 008 |
231224s2016 xx |||||o 00| ||eng c |
| 024 |
7 |
|
|a 10.1021/acs.langmuir.6b00112
|2 doi
|
| 028 |
5 |
2 |
|a pubmed24n0858.xml
|
| 035 |
|
|
|a (DE-627)NLM257682961
|
| 035 |
|
|
|a (NLM)26898378
|
| 040 |
|
|
|a DE-627
|b ger
|c DE-627
|e rakwb
|
| 041 |
|
|
|a eng
|
| 100 |
1 |
|
|a Zapata Herrera, Mario
|e verfasserin
|4 aut
|
| 245 |
1 |
0 |
|a Plasmon Response and Electron Dynamics in Charged Metallic Nanoparticles
|
| 264 |
|
1 |
|c 2016
|
| 336 |
|
|
|a Text
|b txt
|2 rdacontent
|
| 337 |
|
|
|a ƒaComputermedien
|b c
|2 rdamedia
|
| 338 |
|
|
|a ƒa Online-Ressource
|b cr
|2 rdacarrier
|
| 500 |
|
|
|a Date Completed 22.07.2016
|
| 500 |
|
|
|a Date Revised 22.03.2016
|
| 500 |
|
|
|a published: Print-Electronic
|
| 500 |
|
|
|a Citation Status PubMed-not-MEDLINE
|
| 520 |
|
|
|a Using the time-dependent density functional theory, we perform quantum calculations of the electron dynamics in small charged metallic nanoparticles (clusters) of spherical geometry. We show that the excess charge is accumulated at the surface of the nanoparticle within a narrow layer given by the typical screening distance of the electronic system. As a consequence, for nanoparticles in vacuum, the dipolar plasmon mode displays only a small frequency shift upon charging. We obtain a blue shift for positively charged clusters and a red shift for negatively charged clusters, consistent with the change of the electron spill-out from the nanoparticle boundaries. For negatively charged clusters, the Fermi level is eventually promoted above the vacuum level leading to the decay of the excess charge via resonant electron transfer into the continuum. We show that, depending on the charge, the process of electron loss can be very fast, on the femtosecond time scale. Our results are of great relevance to correctly interpret the optical response of the nanoparticles obtained in electrochemistry, and demonstrate that the measured shift of the plasmon resonances upon charging of nanoparticles cannot be explained without account for the surface chemistry and the dielectric environment
|
| 650 |
|
4 |
|a Journal Article
|
| 650 |
|
4 |
|a Research Support, Non-U.S. Gov't
|
| 700 |
1 |
|
|a Aizpurua, Javier
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Kazansky, Andrey K
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Borisov, Andrei G
|e verfasserin
|4 aut
|
| 773 |
0 |
8 |
|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 32(2016), 11 vom: 22. März, Seite 2829-40
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
|
| 773 |
1 |
8 |
|g volume:32
|g year:2016
|g number:11
|g day:22
|g month:03
|g pages:2829-40
|
| 856 |
4 |
0 |
|u http://dx.doi.org/10.1021/acs.langmuir.6b00112
|3 Volltext
|
| 912 |
|
|
|a GBV_USEFLAG_A
|
| 912 |
|
|
|a SYSFLAG_A
|
| 912 |
|
|
|a GBV_NLM
|
| 912 |
|
|
|a GBV_ILN_22
|
| 912 |
|
|
|a GBV_ILN_350
|
| 912 |
|
|
|a GBV_ILN_721
|
| 951 |
|
|
|a AR
|
| 952 |
|
|
|d 32
|j 2016
|e 11
|b 22
|c 03
|h 2829-40
|