In:
Japanese Journal of Applied Physics, IOP Publishing, Vol. 37, No. 7B ( 1998-07-01), p. L882-
Abstract:
Electrical and optical properties of a poly( p -phenylenevinylene) derivative substituted with a long side chain containing alkoxybiphenyl mesogenic unit have been studied. A liquid-crystalline molecular alignment and layer structure have been confirmed by optical microscopic observation and X-ray diffraction measurement, respectively. The dielectric constant changes in a stepwise manner at phase transition temperatures. The band gap of the new polymer in the liquid-crystalline phase has been evaluated to be 2.3 eV, which monotonously decreases with decreasing temperature. A photoluminescence peak was observed at around 560 nm, which corresponds to the emission originating from the poly( p -phenylenevinylene) main chain. An electroluminescnce device has been fabricated using this liquid-crystalline polymer and it has been found that the emission spectra depend on the polarity of the applied electric field.
Type of Medium:
Online Resource
ISSN:
0021-4922
,
1347-4065
DOI:
10.1143/JJAP.37.L882
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
1998
detail.hit.zdb_id:
218223-3
detail.hit.zdb_id:
797294-5
detail.hit.zdb_id:
2006801-3
detail.hit.zdb_id:
797295-7
