Writing self-assembled mesostructured films with in situ formation of gold nanoparticles

Luca Malfatti, Daniela Marongiu, Stefano Costacurta, Paolo Falcaro, Heinz Amenitsch, Benedetta Marmiroli, Gianluca Grenci, Maria Francesca Casula, Plinio Innocenzi

Research output: Contribution to journalArticleResearchpeer-review

Abstract

We have developed an integrated technology that allows patterning and formation of goldnanoparticles in self-assembled mesoporous films in a single step; this technique allows fabrication of patterned structures with high aspect ratios in a direct, simple, and reproducible way. We have used high intensity X-rays that interact with the mesoporous matrix through different processes, by removing the organic templates, increasing the polycondensation of the organic-inorganic silica network, and partially removing the methyl groups bonded in the hybrid matrix. The final material, after patterning and chemical etching, exhibits gold nanoparticles of few nanometers homogeneously dispersed in the porous matrix.

Original languageEnglish
Pages (from-to)2132-2137
Number of pages6
JournalChemistry of Materials
Volume22
Issue number6
DOIs
Publication statusPublished - 23 Mar 2010
Externally publishedYes

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Polycondensation
Silicon Dioxide
Gold
Aspect ratio
Etching
Silica
Nanoparticles
Fabrication
X rays

ASJC Scopus subject areas

  • Materials Chemistry
  • Chemical Engineering(all)
  • Chemistry(all)

Cite this

Writing self-assembled mesostructured films with in situ formation of gold nanoparticles. / Malfatti, Luca; Marongiu, Daniela; Costacurta, Stefano; Falcaro, Paolo; Amenitsch, Heinz; Marmiroli, Benedetta; Grenci, Gianluca; Casula, Maria Francesca; Innocenzi, Plinio.

In: Chemistry of Materials, Vol. 22, No. 6, 23.03.2010, p. 2132-2137.

Research output: Contribution to journalArticleResearchpeer-review

Malfatti, Luca ; Marongiu, Daniela ; Costacurta, Stefano ; Falcaro, Paolo ; Amenitsch, Heinz ; Marmiroli, Benedetta ; Grenci, Gianluca ; Casula, Maria Francesca ; Innocenzi, Plinio. / Writing self-assembled mesostructured films with in situ formation of gold nanoparticles. In: Chemistry of Materials. 2010 ; Vol. 22, No. 6. pp. 2132-2137.
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