Details

Autor(en) / Beteiligte

• Chen, Lu
• He, Yanling
• Liu, Fenggang
• Liu, Jialei
• Zhang, Hua
• Huo, Fuyang
• Bo, Shuhui
• Xiao, Hongyan
• Zhen, Zhen

Titel

Enhanced electro-optic activity from the triarylaminophenyl-based chromophores by introducing different steric hindrance groups

Ist Teil von

• Materials letters, 2017-06, Vol.196, p.230-233

Ort / Verlag

Amsterdam: Elsevier B.V

Erscheinungsjahr

2017

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• [Display omitted] •Site-isolated chromophores L1 and L2 were synthesized with easy five steps and high yield.•Both chromophores L1 and L2 have good thermal stability and solubility in organic solvents.•The r33 values of film-L1/APC and film-L2/APC are respectively 2.3 times and 3 times of that of film-T1/APC. Chromophores L1 and L2 based on modified triphenylamine donors with diverse steric hindrance groups, have been designed in order to achieve large macroscopic r33 value of NLO polymers comparing to traditional triarylaminophenyl chromophore T1. In electro-optic activities, the doped film L1-APC and L2-APC showed r33 value of 37pm/V and 49pm/V at the concentration of 25wt%, which were more than two times higher than that of film T1/APC (16pm/V). These properties, together with the good thermostability, suggest the potential use of the new chromophores as advanced material devices.