Abstract
| Original language | English |
|---|---|
| Article number | 014001 |
| Journal | Flexible and Printed Electronics |
| Volume | 2 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1 Mar 2017 |
Keywords
- paper substrates
- SERS
- ZnO nanorods
- plasmonics
- silver nanoparticles
Cite this
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Direct growth of plasmonic nanorod forests on paper substrates for low-cost flexible 3D SERS platforms. / Araujo, Andreia; Pimentel, Ana; Oliveira, Maria Joao; Mendes, Manuel J.; Franco, Ricardo; Fortunato, Elvira; Aguas, Hugo; Martins, Rodrigo.
In: Flexible and Printed Electronics, Vol. 2, No. 1, 014001, 01.03.2017.Research output: Contribution to journal › Article
TY - JOUR
T1 - Direct growth of plasmonic nanorod forests on paper substrates for low-cost flexible 3D SERS platforms
AU - Araujo, Andreia
AU - Pimentel, Ana
AU - Oliveira, Maria Joao
AU - Mendes, Manuel J.
AU - Franco, Ricardo
AU - Fortunato, Elvira
AU - Aguas, Hugo
AU - Martins, Rodrigo
N1 - Sem PDF. National Funds through FCT (Portuguese Foundation for Science and Technology) (UID/CTM/50025/2013; PTDC/CTM-NAN/2912/2014) European project CEOPS (309984) FCT/MEC (UID/ Multi/04378/2013) ERDF (POCI-01-0145-FEDER-007728) EU FP7 Marie Curie Action (629370) FCT (SFRH/BD/85587/2012; SFRH/BPD/76992/2011)
PY - 2017/3/1
Y1 - 2017/3/1
N2 - Paper substrates, coated with ZnO nanorods (NRs) decorated with Ag nanoparticles (NPs), allowed the production of inexpensive, highly-performing and extremely reproducible three-dimensional (3D) SERS platforms. The ZnO NRs were synthesized by a simple, fast and low-temperature hydrothermal method assisted by microwave radiation and made SERS-active by decorating them with a dense array of silver nanoparticles deposited via a single-step thermal evaporation technique. Using Rhodamine 6G (R6G) as a probe molecule, with an amount down to 10(-9) M, the SERS substrates allowed a Raman signal enhancement of 10(7). The contribution of the inter-Ag-NPs gaps for 3D geometry, ZnO NRs orientation and the large sensing area allowed by theNRscaffolds, were determinant factors for the significant Raman enhancement observed. The results demonstrate that plasmonic nanorod forests, covered with Ag NPs, are efficient SERS substrates with the advantages of being recyclable, flexible, lightweight, portable, biocompatible and extremely low-cost.
AB - Paper substrates, coated with ZnO nanorods (NRs) decorated with Ag nanoparticles (NPs), allowed the production of inexpensive, highly-performing and extremely reproducible three-dimensional (3D) SERS platforms. The ZnO NRs were synthesized by a simple, fast and low-temperature hydrothermal method assisted by microwave radiation and made SERS-active by decorating them with a dense array of silver nanoparticles deposited via a single-step thermal evaporation technique. Using Rhodamine 6G (R6G) as a probe molecule, with an amount down to 10(-9) M, the SERS substrates allowed a Raman signal enhancement of 10(7). The contribution of the inter-Ag-NPs gaps for 3D geometry, ZnO NRs orientation and the large sensing area allowed by theNRscaffolds, were determinant factors for the significant Raman enhancement observed. The results demonstrate that plasmonic nanorod forests, covered with Ag NPs, are efficient SERS substrates with the advantages of being recyclable, flexible, lightweight, portable, biocompatible and extremely low-cost.
KW - paper substrates
KW - SERS
KW - ZnO nanorods
KW - plasmonics
KW - silver nanoparticles
U2 - 10.1088/2058-8585/2/1/014001
DO - 10.1088/2058-8585/2/1/014001
M3 - Article
VL - 2
JO - Flexible and Printed Electronics
JF - Flexible and Printed Electronics
SN - 2058-8585
IS - 1
M1 - 014001
ER -