Graphene oxide nanosheet wrapped white-emissive conjugated polymer nanoparticles.
| Title: | Graphene oxide nanosheet wrapped white-emissive conjugated polymer nanoparticles. |
|---|---|
| Authors: | Yoo DY; Interface Control Research Center, Future Convergence Research Division, Korea Institute of Science and Technology , Seoul, Korea.; Tu ND; Lee SJ; Lee E; Jeon SR; Hwang S; Lim HS; Kim JK; Ju BK; Kim H; Lim JA |
| Source: | ACS nano [ACS Nano] 2014 May 27; Vol. 8 (5), pp. 4248-56. Date of Electronic Publication: 2014 Apr 15. |
| Publication Type: | Journal Article; Research Support, Non-U.S. Gov't |
| Language: | English |
| Journal Info: | Publisher: American Chemical Society Country of Publication: United States NLM ID: 101313589 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1936-086X (Electronic) Linking ISSN: 19360851 NLM ISO Abbreviation: ACS Nano Subsets: PubMed not MEDLINE |
| Imprint Name(s): | Original Publication: Washington D.C. : American Chemical Society |
| Abstract: | We have demonstrated the preparation of white-emissive conjugated polymer nanoparticles wrapped with graphene oxide (GO) nanosheets. Highly stable, GO-wrapped, poly(9,9-di-n-octylfluorenyl-2,7-diyl) nanoparticles (GO-PFO NPs) with diameters in the range 30-150 nm were successfully obtained by utilizing the GO nanosheets as an interface stabilizer in an emulsification process. The synthesized GO-PFO NPs exhibited unique white-emitting photoluminescence with a characteristic green-emissive broad band above 500 nm, which was distinct from the photoluminescent behavior of PFO NPs without GO. This green emission was deduced to originate from the presence of the GO nanosheet shell surrounding the PFO NPs, rather than from luminescence of GO itself or formation of keto defects in the PFO chain. PL decay analysis showed that the GO-wrapped PFO NPs had a longer luminescence lifetime in comparison to PFO NPs without GO, and highly efficient energy transfer to lower energy state induced by the GO occurred. |
| Entry Date(s): | Date Created: 20140417 Date Completed: 20150330 Latest Revision: 20140527 |
| Update Code: | 20260130 |
| DOI: | 10.1021/nn4050968 |
| PMID: | 24735191 |
| Database: | MEDLINE |
Journal Article; Research Support, Non-U.S. Gov't