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https://doi.org/10.1063/1.3095481
Title: | Optical modeling of the plasmon band of monolayer-protected nanometal clusters in pure and in polymer matrix thin films as a function of heat treatment | Authors: | Sivaramakrishnan, S. Anto, B.T. Ho, P.K.-H. |
Issue Date: | 2009 | Citation: | Sivaramakrishnan, S., Anto, B.T., Ho, P.K.-H. (2009). Optical modeling of the plasmon band of monolayer-protected nanometal clusters in pure and in polymer matrix thin films as a function of heat treatment. Applied Physics Letters 94 (9) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.3095481 | Abstract: | The plasmon band shape of thin films of gold nanoparticles and their composites can be quantitatively modeled in a surprisingly simple way by taking into account (i) quantum-size effect of the Au core on its permittivity, (ii) nanostructure effect of the core shell and matrix on the effective medium, and (iii) optical properties of thin films in a transfer-matrix formalism. From the excellent agreement achieved with the optical spectra of these films, neat and when dispersed in poly(3,4-ethylenedioxythiophene) matrices, details of the nanocrystal relaxation, desorption of the ligand shell, and ultimate surface melting and core-core coalescence to give percolating conductive paths during heat treatment were extracted. © 2009 American Institute of Physics. | Source Title: | Applied Physics Letters | URI: | http://scholarbank.nus.edu.sg/handle/10635/97445 | ISSN: | 00036951 | DOI: | 10.1063/1.3095481 |
Appears in Collections: | Staff Publications |
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