Title :
Fundamental properties of ferroelectric liquid-crystalline conductive polymers
Author :
Onoda, Mitsuyoshi ; Yoshino, Kohzoh
Author_Institution :
Grad. Sch. of Eng., Univ. of Hyogo, Himeji, Japan
fDate :
June 29 2014-July 3 2014
Abstract :
Poly(2-methoxy, 5-(4-decyloxy-biphenyl-4´-(1, 10-dioxydecane))-p-phenylenevinylene), MDBD-PPV, wih a long side chain containing alkoxybiphenyl mesogenic unit has been synthesized and its electrical and optical properties have been investigated. This polymer showed a microscopic texture typical to the liquid-crystalline phase and a sharp X-ray diffraction peak due to the smectic layer structure. The band gap of MDBD-PPV in the liquid-crystalline phase has been estimated to be about 2.3 eV. An electroluminescent (EL) device has been fabricated using this liquid-crystalline polymer. MDBD-PPV, as an emissive layer and the polarity effect has been observed in the emission spectra of this EL device.
Keywords :
X-ray diffraction; electroluminescence; electroluminescent devices; energy gap; liquid crystal polymers; optical constants; photoluminescence; smectic liquid crystals; texture; MDBD-PPV; alkoxybiphenyl mesogenic unit; band gap; electrical properties; electroluminescent device; emission spectra; emissive layer; ferroelectric liquid crystalline conductive polymers; liquid-crystalline phase; microscopic texture; optical properties; polarity effect; poly(2-methoxy,5-(4-decyloxy-biphenyl-4´-(1,10-dioxydecane))-p-phenylenevinylene); sharp X-ray diffraction; smectic layer structure; Electrodes; Electroluminescence; Optical films; Optical polymers; Plastics; Solids; electroluminescence; electronic states; liquid-crystalline conductive polymer; poly(p-phenylenevinylene) derivative; smectic phase;
Conference_Titel :
Dielectric Liquids (ICDL), 2014 IEEE 18th International Conference on
Conference_Location :
Bled
DOI :
10.1109/ICDL.2014.6893081
