Rational design, synthesis, and characterization of chromophoric supermolecular self-assembled multilayer thin films having very large optical nonlinearities

DeQuan Li, Tobin J Marks, Tongguang Zhang, George K. Wong

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

A method for preparing organized, highly aligned, multifunctional donor-acceptor covalently bonded self-assemblies on silica surfaces is described. Using the organosilane coupling reagent, I3Si(CH2)2C6H4CH2I (Cp), the high-β chromophore, 4-[N,N-bis(3-hydroxypropyl)amino]styryl-4′-pyridine (Ch) can be easily linked to surfaces via quaternization. Additional chromophore layer can be built up in this manner using chlorosilane/polyvinylalcohol as an intervening structural layer. These multilayer structures have been characterized by FTIR-ATR, UV-vis spectroscopy, advancing contact angle, and second harmonic generation measurements. The studies of NLO properties reveal good structural uniformity and second order susceptibilities χzzz(2) as high as 6 × 10-7 esu for a single CpCh monolayer and 2 × 10-7 esu for multilayer superlattices (λ = 1064 nm).

Original languageEnglish
Pages (from-to)3157-3162
Number of pages6
JournalSynthetic Metals
Volume43
Issue number1-2
DOIs
Publication statusPublished - Jun 7 1991

Fingerprint

Multilayer films
Chromophores
chromophores
Multilayers
nonlinearity
chlorosilanes
Thin films
Superlattices
synthesis
Harmonic generation
thin films
Ultraviolet spectroscopy
Silicon Dioxide
Pyridine
Self assembly
laminates
Contact angle
reagents
superlattices
self assembly

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Polymers and Plastics

Cite this

Rational design, synthesis, and characterization of chromophoric supermolecular self-assembled multilayer thin films having very large optical nonlinearities. / Li, DeQuan; Marks, Tobin J; Zhang, Tongguang; Wong, George K.

In: Synthetic Metals, Vol. 43, No. 1-2, 07.06.1991, p. 3157-3162.

Research output: Contribution to journalArticle

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