Highly efficient and thermally stable electro-optical dendrimers for photonics

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Hong Ma
  • Sen Liu
  • S. Suresh
  • Lu Liu
  • Seok Ho Kang
  • Marnie Haller
  • Takafumi Sassa
  • Larry R. Dalton

Detail(s)

Original languageEnglish
Pages (from-to)565-574
Journal / PublicationAdvanced Functional Materials
Volume12
Issue number9
Online published16 Sep 2002
Publication statusPublished - Sep 2002
Externally publishedYes

Abstract

After a brief review on electro-optical (EO) polymers, the recent development of EO dendrimers is summarized. Both single- and multiple-dendron-modified nonlinear optical (NLO) chromohores in the guest-host polymer systems showed a very significant enhancement of poling efficiency (up to three-fold increase) due to the minimization of intermolecular electrostatic interactions among large dipole moment chromophores through the dendritic effect. Moreover, multiple NLO chromophore building blocks can also be placed into a dendrimer a construct a precise molecular architecture with a predetermined chemical composition. The site-isolation effect, through the encapsulation of NLO moieties with dendrons, can greatly enhance the performance of EO materials. A very large EO coefficient (r33=60 pm/V at 1.55 μm) and high temporal stability (85 °c for more than 1000 h) were achieved in NLO dendrimer (see Figure) through the double-end functionalization of a three-dimensional phenyl-tetracyanobutadienyl (Ph-TCBD)-containing NLO chromophore with thermally crosslinkable trifluorovinylether-containing dendrons.

Citation Format(s)

Highly efficient and thermally stable electro-optical dendrimers for photonics. / Ma, Hong; Liu, Sen; Luo, Jingdong; Suresh, S.; Liu, Lu; Kang, Seok Ho; Haller, Marnie; Sassa, Takafumi; Dalton, Larry R.; Jen, Alex K.-Y.

In: Advanced Functional Materials, Vol. 12, No. 9, 09.2002, p. 565-574.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review