TY - JOUR
T1 - Surface modification of a new flexible substrate based on hydroxypropylcellulose for optoelectronic applications
AU - Fortunato, Elvira Maria Correia
AU - Godinho, Maria Helena Figueiredo
AU - Santos, H.
AU - Marques, A
AU - Assunção, V.
AU - Pereira, Luis Miguel Nunes
AU - Águas, Hugo Manuel Brito
AU - Ferreira, Isabel Maria Mercês
AU - Martins, Rodrigo Ferrão de Paiva
PY - 2003/1/1
Y1 - 2003/1/1
N2 - In this paper we examined the electrical and optical properties of a new composite device containing layers of a nematic liquid crystal and cellulose derivative. Using the thermally stimulated depolarization Current (TSDC) method we obtained information regarding the conduction mechanism, the activation energy, and the pre-exponential frequency factor in the Arrhenius diagrams. The optical transmission is slightly dependent on the polarization field, and the thermal switch behavior was obtained at the nematic-isotrop transition. When a.c. voltage is applied to the sample, the optical transmission depends strongly on the field amplitude, and a very good contrast is obtained.
AB - In this paper we examined the electrical and optical properties of a new composite device containing layers of a nematic liquid crystal and cellulose derivative. Using the thermally stimulated depolarization Current (TSDC) method we obtained information regarding the conduction mechanism, the activation energy, and the pre-exponential frequency factor in the Arrhenius diagrams. The optical transmission is slightly dependent on the polarization field, and the thermal switch behavior was obtained at the nematic-isotrop transition. When a.c. voltage is applied to the sample, the optical transmission depends strongly on the field amplitude, and a very good contrast is obtained.
KW - surface composition
KW - polymers
KW - sputtering
KW - zinc oxide
U2 - 10.1016/S0040-6090(03)00959-3
DO - 10.1016/S0040-6090(03)00959-3
M3 - Article
SN - 0040-6090
VL - 442
SP - 127
EP - 131
JO - Thin Solid Films
JF - Thin Solid Films
IS - 1-2
ER -