Alloisio, M.

Dellepiane, G.

Margheri, G.

Muniz-Miranda, M.

Rindi, A.

A. Rindi

G. Margheri

M. Muniz Miranda

DELLEPIANE, GIOVANNA

ALLOISIO, MARINA

Archivio istituzionale della ricerca - Università di Genova

Metal-organic platforms for photonic applications based on poly-10,12, docosadiynedioic acid (PDCDA)

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             EUCMOS 2010 
 
EUCMOS 2010
30th European Congress 
on Molecular Spectroscopy
 
Florence (I), 29 August 
 
 
Vincenzo Schettino
 
 
  
 
 
 
 
– 3 September 2010 
Edited by: 
Maurizio Becucci 
Cristina Gellini 
 
i 
 
MATERIALS AND SURFACES
EUCMOS 2010
Metal-organic platforms for photonic applications based on  poly
dicosadiynedioic acid (PDCDA)
 
A. Rindi1, G. Margheri
1Department of Chemistry and Industrial Chemistry
2Institute for Complex System s,CNR,Via  Madonna del Piano 10, 50019, 
3Deparment of Chemistry, University of Florence,
 
The modification of metal surfaces with monolayers of polydiacetylenes (PDAs) or 
with PDAs-based nanohybrids [1] is a subje
nonlinear optics, sensing [1,2] nanolithography and nanophotonics.
For the functionalization of metal we have chosen the 10,12 dicosadiynedioic (DCDA) 
monomer for the following reasons. First, the pre
makes it possible to use either of the DCDA terminals as linker to a surface, while the other 
one is free to interact with other molecules or other metal surfaces. Second, the absence of 
cumbersome lateral moieties e
desirable for nonlinear optical applications.
In this work, we report on the realization of metal
functionalization of a planar Ag surface through 1) Self Assembly (SA) of a
monolayer of DCDA, and 2) SA of a layer of Ag
functionalization is followed in both cases by the UV polymerization of the monomeric units.
The formation of a self
and the UV polymerization are 
Spectroscopy (SPRS). The polymerization process is confirmed by Surface Enhanced Raman 
Scattering (SERS) measurements (see figure below).
 
The DCDA-capped nanoparticles used for the second step have been chemically 
synthetized, their water dispersion has been analyzed by UV
their shapes and dimensions were investigated by electron microscopy. The SA of these 
particles on the Ag surface was 
surface the final product, a metal
spectroscopy. In both cases, a bluish
even after prolonged UV irradiation.
 
[1] M. Alloisio, A. Demartini, C. Cuniberti, G. Dellepiane, 
[2] T. Kim, R. M. Crooks. Tethraedron Lett., 35 (1994) 9501
 
  
 
 
2 
, M. Muniz-Miranda3, G. Dellepiane1, M. Alloisio
 
 , University of Genova , Via Dodecaneso
16146,Genova,Italy 
Sesto Fiorentino (Fi), Italy
 Via della Lastruccia 3, 50019 Sesto Fiorentino ,Italy
ct of great interest, in particular for applications in 
 
sence of a symmetric COOH functionality 
nables the polymerization in the more conjugated form, highly 
 
-organic surfaces via 
–DCDA capped particles. The 
-assembled monolayer (SAM) of DCDA on the flat Ag surfac
in-situ monitored via Surface Plasmon Resonance 
 
-vis extinction spectroscopy and 
in-situ monitored by SPRS. After UV irradiation of the 
-polymer composite, is obtained and analyzed by SERS 
-green PDCDA is formed, that results to be quit
 
Sensor Letters, (2010), in press.
 
C=C stretch 
C≡C stretch 
PS1-83 
207 
-10,12 
1
 
 31 , 
 
 
 molecular 
 
e 
 
e stable 
 


Metal-organic platforms for photonic applications based on poly-10,12 dicosadiynedioic acid (PDCDA)

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Metal-organic platforms for photonic applications based on poly-10,12 dicosadiynedioic acid (PDCDA)

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