Abstract
We developed a route for one-pot synthesis of fluorescent hybrid nanoparticles and their assembly into a nanofilm by utilizing a fusion and fission-triggered nanoreactor system based on water-in-oil "mini- emulsion". A fluorescent nanocrystal, ZnS:Mn2+, was produced in a confined system via fusion and fission of nanodroplets induced by ultrasonication and the amount of nanocrystals formed in each nanoreactor was easily controlled. Then, in situ polymerisation allowed for encapsulation of nanocrystals inside polymer nanoparticles, leading to an efficient surface capping of nanocrystals with polymers and hence a strong light emission under UV irradiation. Also, hybrid nanoparticles with different colours could be created by tuning of Mn2+ doping into ZnS nanocrystals, which can give rise to an energy transfer from carboxylic groups of surface capping polymers to the Mn2+. These hybrid nanoparticles were then spin-coated to form hybrid nanofilms where nanocrystals were uniformly distributed. The multicolour tuning of nanofilms was achieved simply by mixing nanoparticles with ZnS-derived blue emission and those with ZnS:Mn2+-derived orange emission. We believe that our nanoreactor system would offer a viable way in creating fluorescent nanomaterials. This journal is
| Original language | English |
|---|---|
| Pages (from-to) | 1231-1237 |
| Number of pages | 7 |
| Journal | Journal of Materials Chemistry C |
| Volume | 1 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2013 Feb 14 |
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ASJC Scopus subject areas
- Chemistry(all)
- Materials Chemistry
Cite this
One-pot synthesis of fluorescent hybrid nanoparticles and their assembly into transparent and multi-coloured nanofilms. / Fukui, Yuuka; Ozawa, Yui; Fujimoto, Keiji.
In: Journal of Materials Chemistry C, Vol. 1, No. 6, 14.02.2013, p. 1231-1237.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - One-pot synthesis of fluorescent hybrid nanoparticles and their assembly into transparent and multi-coloured nanofilms
AU - Fukui, Yuuka
AU - Ozawa, Yui
AU - Fujimoto, Keiji
PY - 2013/2/14
Y1 - 2013/2/14
N2 - We developed a route for one-pot synthesis of fluorescent hybrid nanoparticles and their assembly into a nanofilm by utilizing a fusion and fission-triggered nanoreactor system based on water-in-oil "mini- emulsion". A fluorescent nanocrystal, ZnS:Mn2+, was produced in a confined system via fusion and fission of nanodroplets induced by ultrasonication and the amount of nanocrystals formed in each nanoreactor was easily controlled. Then, in situ polymerisation allowed for encapsulation of nanocrystals inside polymer nanoparticles, leading to an efficient surface capping of nanocrystals with polymers and hence a strong light emission under UV irradiation. Also, hybrid nanoparticles with different colours could be created by tuning of Mn2+ doping into ZnS nanocrystals, which can give rise to an energy transfer from carboxylic groups of surface capping polymers to the Mn2+. These hybrid nanoparticles were then spin-coated to form hybrid nanofilms where nanocrystals were uniformly distributed. The multicolour tuning of nanofilms was achieved simply by mixing nanoparticles with ZnS-derived blue emission and those with ZnS:Mn2+-derived orange emission. We believe that our nanoreactor system would offer a viable way in creating fluorescent nanomaterials. This journal is
AB - We developed a route for one-pot synthesis of fluorescent hybrid nanoparticles and their assembly into a nanofilm by utilizing a fusion and fission-triggered nanoreactor system based on water-in-oil "mini- emulsion". A fluorescent nanocrystal, ZnS:Mn2+, was produced in a confined system via fusion and fission of nanodroplets induced by ultrasonication and the amount of nanocrystals formed in each nanoreactor was easily controlled. Then, in situ polymerisation allowed for encapsulation of nanocrystals inside polymer nanoparticles, leading to an efficient surface capping of nanocrystals with polymers and hence a strong light emission under UV irradiation. Also, hybrid nanoparticles with different colours could be created by tuning of Mn2+ doping into ZnS nanocrystals, which can give rise to an energy transfer from carboxylic groups of surface capping polymers to the Mn2+. These hybrid nanoparticles were then spin-coated to form hybrid nanofilms where nanocrystals were uniformly distributed. The multicolour tuning of nanofilms was achieved simply by mixing nanoparticles with ZnS-derived blue emission and those with ZnS:Mn2+-derived orange emission. We believe that our nanoreactor system would offer a viable way in creating fluorescent nanomaterials. This journal is
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UR - http://www.scopus.com/inward/citedby.url?scp=84876949153&partnerID=8YFLogxK
U2 - 10.1039/c2tc00312k
DO - 10.1039/c2tc00312k
M3 - Article
AN - SCOPUS:84876949153
VL - 1
SP - 1231
EP - 1237
JO - Journal of Materials Chemistry C
JF - Journal of Materials Chemistry C
SN - 2050-7526
IS - 6
ER -