Aspect-ratio- and size-dependent emergence of the surface-plasmon resonance in gold nanorods--an ab initio TDDFT study

Physical Chemistry Chemical Physics : PCCP
Xóchitl López-LozanoHans-Christian Weissker

Abstract

It is known that the surface-plasmon resonance (SPR) in small spherical Au nanoparticles of about 2 nm is strongly damped. We demonstrate that small Au nanorods with a high aspect ratio develop a strong longitudinal SPR, with intensity comparable to that in Ag rods, as soon as the resonance energy drops below the onset of the interband transitions due to the geometry. We present ab initio calculations of time-dependent density-functional theory of rods with lengths of up to 7 nm. By changing the length and width, not only the energy but also the character of the resonance in Au rods can be tuned. Moreover, the aspect ratio alone is not sufficient to predict the character of the spectrum; the absolute size matters.

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Citations

Jun 6, 2014·Journal of the American Chemical Society·Ryo TakahataTatsuya Tsukuda
May 17, 2014·Physical Chemistry Chemical Physics : PCCP·Hans-Christian WeisskerXóchitl López-Lozano
Aug 29, 2014·Nanoscale·Emilie B Guidez, Christine M Aikens
Jun 24, 2014·Physical Chemistry Chemical Physics : PCCP·Emilie B Guidez, Christine M Aikens
Mar 13, 2014·Physical Chemistry Chemical Physics : PCCP·Christopher J Heard, Roy L Johnston
Apr 16, 2015·Physical Chemistry Chemical Physics : PCCP·Giovanni BarcaroMauro Stener
Jun 25, 2015·Physical Chemistry Chemical Physics : PCCP·Hans-Christian Weissker, Xóchitl López-Lozano
Jul 17, 2015·The Journal of Chemical Physics·Oscar BaseggioMauro Stener
May 29, 2015·Journal of the American Chemical Society·Shinjiro TakanoTatsuya Tsukuda
Mar 10, 2015·The Journal of Chemical Physics·Tuomas P RossiRisto M Nieminen
Nov 14, 2018·Physical Chemistry Chemical Physics : PCCP·Junais Habeeb Mokkath
Jan 3, 2020·The Journal of Chemical Physics·A S FedorovH Ågren
Dec 20, 2015·Physical Review Letters·Tuomas P RossiRisto M Nieminen
Nov 12, 2019·Frontiers in Chemistry·Yiqing ShuJianqing Li
Oct 23, 2020·The Journal of Chemical Physics·Zhen LiuChristine M Aikens
Aug 12, 2021·Physical Chemistry Chemical Physics : PCCP·Narges Asadi-AghbolaghiLucas Visscher
Oct 31, 2019·ACS Applied Materials & Interfaces·Ane LarreaVíctor Sebastián
Aug 18, 2021·The Journal of Physical Chemistry. a·Giulia GiannoneFabio Della Sala
Oct 19, 2017·Nano Letters·Yongyou ZhangUdo Schwingenschlögl
May 17, 2018·Chemical Reviews·Rachel Crespo-Otero, Mario Barbatti
Nov 9, 2018·Journal of Chemical Theory and Computation·Rajarshi Sinha-RoyHans-Christian Weissker
Oct 27, 2018·The Journal of Physical Chemistry. C, Nanomaterials and Interfaces·Fahri Alkan, Christine M Aikens
Sep 18, 2021·The Journal of Physical Chemistry Letters·Rajarshi Sinha-RoyHans-Christian Weissker
Sep 28, 2021·Chemical Reviews·Jiapeng ZhengJianfang Wang

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