Photorefractive Materials, from Polymer to Hyper-Structured Molecule

Abstract:

A series of amorphous polyphosphazenes containing carbazole-based multifunctional chromophores and two hyper-structured photorefractive molecular glasses with a cyclotriphosphazene core were synthesized. These photorefractive polymers and molecular glasses show low glass transition temperature (20-90oC) and can easily be fabricated into optically transparent films with long-term stability. Results of two-beam-coupling and four-wave-mixing experiments demonstrated that high gain coefficient and diffraction efficiency were achieved at zero electric field for samples fabricated with these materials.

• Periodical: Advanced Materials Research (Volumes 123-125)
• Pages: 871-874
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.123-125.871
• Online since: August 2010
• Authors: Li Zhang, Jun Shi, Shao Kui Cao
• Keywords: Cyclotriphosphazene, Hyper-Structured Molecule, Organic Glass, Photorefractive

References

[1] O. Ostroverkhova, W.E. Moerner: Chem. Rev. Vol. 104 (2004), p: 3267.

[2] W. You, S.K. Cao, Z.J. Hou, L.P. Yu: Macromolecules Vol. 36 (2003), p: 7014.

[3] J. Shi, M. M. Huang, Z. J. Chen, Q. H. Gong, S. K. Cao: J. Mater. Sci. Vol. 39 (2004), p: 3783.

[4] L. Zhang, M.M. Huang, Z.W. Jiang, Z. Yang, Z.J. Chen, Q.H. Gong, S.K. Cao: React. Funct. Polym. Vol. 66 (2006), p: 1404.

[5] L. Zhang, J. Shi, Z. Yang, M.M. Huang, Z.J. Chen, Q.H. Gong, S.K. Cao: Polymer Vol. 49 (2008), p: 2107.

[6] L. Zhang, J. Shi, Z.W. Jiang, M.M. Huang, Z.J. Chen, Q.H. Gong, S.K. Cao: Adv. Funct. Mater. Vol. 18 (2008), p: 362.

[7] F. Wurthner, S. Yao, J. Schilling, R. Wortmann, M. R. Abshiro, E. Mecher, F. G. Gomez, K. Meerholz: J. Am. Chem. Soc. Vol. 123 (2001), p: 2810.

DOI: 10.1021/ja002321g

[8] J. Shi, M. M. Huang, Y. R. Xin, Z. J. Chen, Q. H. Gong, S. G. Xu, S. K. Cao: Mater. Lett. Vol. 59 (2005).