TY - JOUR
T1 - Filling in the voids of electrospun hydroxypropyl cellulose network: dielectric investigations
AU - Mǎnǎilǎ-Maximean, Doina
AU - Danila, Octavian
AU - Ganea, Constantin Paul
AU - Almeida, Pedro L.
N1 - info:eu-repo/grantAgreement/FCT/5876/147333/PT#
This work was partially funded by FEDER funds through the COMPETE 2020 Program and National Funds through FCT - Portuguese Foundation or Science and Technology under the Projects Nos. POCI-01-0145-FEDER-007688 (Reference UID/CTM/50025) and PTDC/FIS-NAN/0117/2014. CPG thanks the Romanian Ministry of Education and Research for financial support under Core Program, Project CEFIZMATINT (PN18-11).
PY - 2018/1/1
Y1 - 2018/1/1
N2 - Here we describe an organic electro-optic device, obtained using electrospun hydroxypropyl cellulose (HPC) polymer fibres and nematic liquid crystals (LC). Its working mechanism is similar to that of a classic polymer-dispersed liquid crystal (PDLC) device. The scanning electron microscopy of the HPC deposited fibres shows a mat of fibres with diameters in the nano and micron size range. Dielectric spectroscopy measurements allow the determination of the dependence of the dielectric constant and electric energy loss on frequency and temperature as well as the determination of the activation energy. The electro-optic study shows a very good optical transmission curve, with an “on”-“off” switching voltage of less than 1 V/μm.
AB - Here we describe an organic electro-optic device, obtained using electrospun hydroxypropyl cellulose (HPC) polymer fibres and nematic liquid crystals (LC). Its working mechanism is similar to that of a classic polymer-dispersed liquid crystal (PDLC) device. The scanning electron microscopy of the HPC deposited fibres shows a mat of fibres with diameters in the nano and micron size range. Dielectric spectroscopy measurements allow the determination of the dependence of the dielectric constant and electric energy loss on frequency and temperature as well as the determination of the activation energy. The electro-optic study shows a very good optical transmission curve, with an “on”-“off” switching voltage of less than 1 V/μm.
UR - http://www.scopus.com/inward/record.url?scp=85050125488&partnerID=8YFLogxK
U2 - 10.1140/epjp/i2018-11997-8
DO - 10.1140/epjp/i2018-11997-8
M3 - Article
AN - SCOPUS:85050125488
VL - 133
JO - European Physical Journal Plus
JF - European Physical Journal Plus
SN - 2190-5444
IS - 4
M1 - 159
ER -