Flexible and mechanically stable antireflective coatings from nanoporous organically modified silica colloids

Hulya Budunoglu, Adem Yildirim, Mehmet Bayindir

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

We report the preparation of flexible and mechanically stable antireflective organically modified silica (ormosil) coatings at ambient conditions. Thin films are obtained from colloidal suspensions of ormosil gels which are prepared using methyltrimethoxysilane (MTMS) and tetraethyl orthosilicate (TEOS) monomers. The ormosil suspensions are directly applicable and suitable for the large-area deposition of nanoporous ormosil thin films. The nanoporosity of the films can be tuned by changing the monomer ratio of the starting solution. Thin films on flexible substrates retain their antireflective properties even after 100 cycles of excessive bending without a significant change in transmission. Furthermore, the films remained intact after water dripping and adhesive tape tests. In addition, thin films on glass substrates are found to exhibit antifogging properties after annealing at 600 °C for 30 min. The ease of fabrication and multifunctionality of these films make them ideal coatings for flexible electronic and optoelectronic devices, sensors, and solar cells.

Original languageEnglish (US)
Pages (from-to)9671-9677
Number of pages7
JournalJournal of Materials Chemistry
Volume22
Issue number19
DOIs
StatePublished - May 21 2012
Externally publishedYes

Fingerprint

Colloids
Silicon Dioxide
Silica
Thin films
Coatings
Suspensions
Monomers
Flexible electronics
Silica Gel
Silica gel
Substrates
Optoelectronic devices
Tapes
Adhesives
Solar cells
Annealing
Fabrication
Glass
Water
Sensors

ASJC Scopus subject areas

  • Materials Chemistry
  • Chemistry(all)

Cite this

Flexible and mechanically stable antireflective coatings from nanoporous organically modified silica colloids. / Budunoglu, Hulya; Yildirim, Adem; Bayindir, Mehmet.

In: Journal of Materials Chemistry, Vol. 22, No. 19, 21.05.2012, p. 9671-9677.

Research output: Contribution to journalArticle

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