In this study, we demonstrate control over the localized surface plasmon band (SPB) of a micellar poly(styrene-block-4vinylpyridine) (PS-b-P4VP) copolymer thin film composite that includes Ag and Au nanoparticles (NPs) in the presence of single walled carbon nanotubes (SWCNTs). Ag and Au NPs are preferentially located in the P4VP core and the PS corona of ordered spherical PS-b-P4VP copolymer micelles, respectively. This structure gave rise to a single SPB due to the coupling of Ag and Au SPBs. The non-covalent addition of SWCNTs in the block copolymer micelles shifts the coupled SPB to a lower wavelength. The maximum shift in the coupled SPB of approximately 30 nm was achieved in the PS-b-P4VP/Ag/Au NPs composite. The carbon nanotube induced modulation of the coupled SPB stems from the charge accumulation effect of the SWCNTs placed between the two types of nanoparticles.
|Number of pages||7|
|Journal||Reactive and Functional Polymers|
|Publication status||Published - 2011 Dec|
Bibliographical noteFunding Information:
This project was supported by the DAPA and ADD as well as the Converging Research Center Program through the Ministry of Education, Science, and Technology (No. 2010K001430). This Project was supported by the National Research Foundation of Korea (NRF) Grant, funded by the Ministry of Science and Technology (MEST), Republic of Korea (R11-2007-050-03001-0). The X-ray experiments at PAL (4C2 beamline), Korea, were supported by MEST and POSCO, Korea. This work was supported by the Second Stage of the Brain Korea 21 and the National Research Foundation of Korea (NRF) Grant, funded by the Korean government (MEST) (No. 2009-0080235).
All Science Journal Classification (ASJC) codes
- Environmental Chemistry
- Chemical Engineering(all)
- Polymers and Plastics
- Materials Chemistry