Details
| Original language | English |
|---|---|
| Pages (from-to) | 717-723 |
| Number of pages | 7 |
| Journal | CHEMPHYSCHEM |
| Volume | 17 |
| Issue number | 5 |
| Early online date | 25 Nov 2015 |
| Publication status | Published - 2 Mar 2016 |
Abstract
We report the synthesis of plasmonic Cu 2-xSe@ZnS core@shell nanoparticles (NPs). We used a shell growth approach, starting from Cu 2-xSe NPs that have been shown before to exhibit a localized surface plasmon resonance (LSPR). By careful synthesis planning we avoided cation exchange reactions and received core@shell nanoparticles that, after oxidation under air, exhibit a strong LSPR in the NIR. Interestingly, the crystalline, closed ZnS shell that we grew with variable thickness still allowed a slow oxidation of the core under ambient conditions, while the core was effectively protected from reduction, even in the presence of reducing agents such as borane tert-butyamine complex and diisobutylaluminum hydride, giving rise to a stable particle LSPR, also under strongly reducing conditions.
Keywords
- core-shell nanoparticles, materials science, plasmon resonances, quantum dots, synthesis
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Chemistry(all)
- Physical and Theoretical Chemistry
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In: CHEMPHYSCHEM, Vol. 17, No. 5, 02.03.2016, p. 717-723.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Synthesis of Plasmonic Cu2-xSe@ZnS Core@Shell Nanoparticles
AU - Wolf, A.
AU - Härtling, T.
AU - Hinrichs, D.
AU - Dorfs, D.
N1 - Funding Information: D.D. is grateful to the German research foundation (DFG) for funding (DFG research Grants DO 1580/2-1 and DO 1580/3-1). Furthermore, D.D. is grateful to the Volkswagen foundation (lower Saxony/Israel cooperation, Grant ZN2916). The authors are thankful to the Laboratory of Nano and Quantum Engineering of the Leibniz Universitt Hannover. T.H. achkowledges funding from the Fraunhofer internal programs (grant number 692271).
PY - 2016/3/2
Y1 - 2016/3/2
N2 - We report the synthesis of plasmonic Cu 2-xSe@ZnS core@shell nanoparticles (NPs). We used a shell growth approach, starting from Cu 2-xSe NPs that have been shown before to exhibit a localized surface plasmon resonance (LSPR). By careful synthesis planning we avoided cation exchange reactions and received core@shell nanoparticles that, after oxidation under air, exhibit a strong LSPR in the NIR. Interestingly, the crystalline, closed ZnS shell that we grew with variable thickness still allowed a slow oxidation of the core under ambient conditions, while the core was effectively protected from reduction, even in the presence of reducing agents such as borane tert-butyamine complex and diisobutylaluminum hydride, giving rise to a stable particle LSPR, also under strongly reducing conditions.
AB - We report the synthesis of plasmonic Cu 2-xSe@ZnS core@shell nanoparticles (NPs). We used a shell growth approach, starting from Cu 2-xSe NPs that have been shown before to exhibit a localized surface plasmon resonance (LSPR). By careful synthesis planning we avoided cation exchange reactions and received core@shell nanoparticles that, after oxidation under air, exhibit a strong LSPR in the NIR. Interestingly, the crystalline, closed ZnS shell that we grew with variable thickness still allowed a slow oxidation of the core under ambient conditions, while the core was effectively protected from reduction, even in the presence of reducing agents such as borane tert-butyamine complex and diisobutylaluminum hydride, giving rise to a stable particle LSPR, also under strongly reducing conditions.
KW - core-shell nanoparticles
KW - materials science
KW - plasmon resonances
KW - quantum dots
KW - synthesis
UR - http://www.scopus.com/inward/record.url?scp=84959370399&partnerID=8YFLogxK
U2 - 10.1002/cphc.201500907
DO - 10.1002/cphc.201500907
M3 - Article
VL - 17
SP - 717
EP - 723
JO - CHEMPHYSCHEM
JF - CHEMPHYSCHEM
SN - 1439-4235
IS - 5
ER -