1260100-70-6

Upstream product

• 41313-77-3 4-(bis(2-acetoxyethyl)amino)benzaldehyde 
• 78-59-1 3,5,5-Trimethylcyclohex-2-en-1-one 
• 436097-07-3 4,4,4-trifluoro-3-hydroxy-3-phenyl-2-butanone 
• 434-45-7 2,2,2-Trifluoroacetophenone 
• 224784-28-5 2-[3-[2-[4-[bis[2-[[(1,1-dimethylethyl)dimethylsilyl]oxy]ethyl]amino]phenyl]ethenyl]-5,5-dimethyl-2-cyclohexen-1-ylidene]acetaldehyde 
• 436097-14-2 [3-cyano-4-methyl-5-phenyl-5-(trifluoromethyl)-2(5H)-furanylidene]propanedinitrile 

Relevant academic research and scientific papers

Structure-function relationship exploration for enhanced thermal stability and electro-optic activity in monolithic organic NLO chromophores

We have developed a series of novel monolithic materials based on molecules previously explored as dopants in guest-host systems to study intrinsic structure-function relationships in organic electro-optic (EO) materials. In a library of EO molecules with varied bridge segments, molecular modification of the donor with bis(tert-butyldiphenylsilyl) groups led to improvement in formation of amorphous films and led to enhanced poling efficiency. Further modification to include a carbazole site-isolation group on the bridge effectively reduced intermolecular dipole-dipole interactions, led to a material with poling efficiency of approximately 3 (nm V-1)2, and an increased glass transition temperature to 20-40 °C higher than similar reported monolithic materials. This level of thermal stability is comparable to common guest/host systems, which incorporated poly(methyl methacrylate) (PMMA) as the host. Our research showed that π-bridge length and type impacted first molecular hyperpolarizability β of a chromophore, which is accordingly reflected in the EO response. These findings further promote the utility of monolithic materials for their increased EO behavior and improved thermal stability, making this material system a competitor of guest-host systems in commercial applications.