Journal
RSC ADVANCES
Volume 2, Issue 4, Pages 1416-1423Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c1ra00838b
Keywords
-
Categories
Funding
- Chinese Academy of Sciences [KJCX2.YW.H02]
- National Basic Research Program of China (973 Program) [2006CB933000]
Ask authors/readers for more resources
The synthesis and characterization of new push-pull chromophores A and B, from tricyanofuran (TCF) electron withdrawing and various electron donating moieties, have been demonstrated to compare the roles of donors in electro-optic performance. The crystal structure analyses of the intramolecular hydrogen bond, molecular coplanarity and p-p interactions reveal that A forms cross-stacking, while B forms antiparallel dimer packing, which indicates weaker intermolecular interactions of A than B. Also, the photophysical properties, solvatochromic behavior and Density Functional Theory (DFT) calculations were also investigated. In electro-optic activities, the doped films-A containing chromophore A display an r(33) value of 36 pm V 21 at the saturated doping concentration of 40 wt%, while the doped films-B containing B show a maximum r(33) value of 16 pm V-1 at the saturated concentration of 25 wt%. High loading density and high r(33) value indicate that the chromophore A with julolidinyl-based donor can efficiently reduce the interchromophore electrostatic interactions and enhance the macroscopic optical nonlinearity, showing that chromophore A with julolidinyl-based donor has promising applications in nonlinear optical (NLO) materials.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available