Nanostructured functional block copolymers for electrooptic devices

Yanqing Tian, Ching Yi Chen, Marnie A. Haller, Neil M. Tucker, Jae Won Ka, Jingdong Luo, Su Huang, Alex K Y Jen

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

Three dendron-linear diblock copolymers with a polyene-type nonlinear optical (NLO) chromophore incorporated in the dendron segment and polystyrene as the linear block were synthesized to investigate the effect of nanostructures on electrooptic (EO) properties. These block copolymers form nanostructures with a periodicity between 36 and 44 nm, which can be characterized using atomic force microscopy (AFM). High EO coefficients (r33) up to 64 pm/V can be achieved in these materials that only have relatively low chromophore concentrations (the highest one is 18 wt %). The resulting poled copolymers also showed good temporal stability. More than 81% of the original r33 value can be retained after being isothermally heated at 85 °C for more than 500 h. On the contrary, the results from the guest-host systems (the chromophore was dispersed into polystyrene) only exhibited lower r33 values and very poor thermal stability (less than 30% of the original r 33 values remained after 120 h at 85 °C). These results clearly demonstrate the advantages of using nanostructured block copolymers to improve both poling efficiency (a factor of ∼1.5) and temporal stability of EO materials.

Original languageEnglish (US)
Pages (from-to)97-104
Number of pages8
JournalMacromolecules
Volume40
Issue number1
DOIs
StatePublished - Jan 9 2007
Externally publishedYes

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Chromophores
Electrooptical effects
Block copolymers
Polystyrenes
Nanostructures
Polyenes
Atomic force microscopy
Thermodynamic stability
Copolymers
dendron

ASJC Scopus subject areas

  • Materials Chemistry

Cite this

Tian, Y., Chen, C. Y., Haller, M. A., Tucker, N. M., Ka, J. W., Luo, J., ... Jen, A. K. Y. (2007). Nanostructured functional block copolymers for electrooptic devices. Macromolecules, 40(1), 97-104. https://doi.org/10.1021/ma061294x

Nanostructured functional block copolymers for electrooptic devices. / Tian, Yanqing; Chen, Ching Yi; Haller, Marnie A.; Tucker, Neil M.; Ka, Jae Won; Luo, Jingdong; Huang, Su; Jen, Alex K Y.

In: Macromolecules, Vol. 40, No. 1, 09.01.2007, p. 97-104.

Research output: Contribution to journalArticle

Tian, Y, Chen, CY, Haller, MA, Tucker, NM, Ka, JW, Luo, J, Huang, S & Jen, AKY 2007, 'Nanostructured functional block copolymers for electrooptic devices', Macromolecules, vol. 40, no. 1, pp. 97-104. https://doi.org/10.1021/ma061294x
Tian Y, Chen CY, Haller MA, Tucker NM, Ka JW, Luo J et al. Nanostructured functional block copolymers for electrooptic devices. Macromolecules. 2007 Jan 9;40(1):97-104. https://doi.org/10.1021/ma061294x
Tian, Yanqing ; Chen, Ching Yi ; Haller, Marnie A. ; Tucker, Neil M. ; Ka, Jae Won ; Luo, Jingdong ; Huang, Su ; Jen, Alex K Y. / Nanostructured functional block copolymers for electrooptic devices. In: Macromolecules. 2007 ; Vol. 40, No. 1. pp. 97-104.
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