Highly efficient and thermally stable electro-optical dendrimers for photonics
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Pages (from-to) | 565-574 |
Journal / Publication | Advanced Functional Materials |
Volume | 12 |
Issue number | 9 |
Online published | 16 Sep 2002 |
Publication status | Published - Sep 2002 |
Externally published | Yes |
Link(s)
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 journal › peer-review