Browsing by Author "Chiou, JF"

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A real-time poling approach for preparing second-order nonlinear optical polymer thin films
(1997-07-30)
Jou, JH
;
Wu, HS
;
Chiou, JF
;
Yang, PK
;
Huang, JY
A new real-time poling approach for preparing second-order nonlinear optical (NLO) polymer thin films is presented. The presented method may be conveniently applied to many polymer thin film systems without going through the complicated conventional synthesis and poling procedures. This method, which is proven in this work to be feasible experimentally, is done by simultaneously co-depositing a NLO active dye, disperse red 1 and two polyamide thin film forming monomers on a gold electrodes pre-patterned glass substrate while concurrently applying an electrical field for poling. A second harmonic generation (SHG) signal is detected from the resultant thin films at a very low poring field ranging from 0.01 to 0.1 MV/cm which increases in intensity as the poling field increases. (C) 1997 Elsevier Science S.A.
A real-time poling approach for preparing second-order nonlinear optical polymer thin films
(1997-07-30)
Jou, JH
;
Wu, HS
;
Chiou, JF
;
Yang, PK
;
Huang, JY
A new real-time poling approach for preparing second-order nonlinear optical (NLO) polymer thin films is presented. The presented method may be conveniently applied to many polymer thin film systems without going through the complicated conventional synthesis and poling procedures. This method, which is proven in this work to be feasible experimentally, is done by simultaneously co-depositing a NLO active dye, disperse red 1 and two polyamide thin film forming monomers on a gold electrodes pre-patterned glass substrate while concurrently applying an electrical field for poling. A second harmonic generation (SHG) signal is detected from the resultant thin films at a very low poring field ranging from 0.01 to 0.1 MV/cm which increases in intensity as the poling field increases. (C) 1997 Elsevier Science S.A.
Single-layer organic electroluminescent devices by vapor deposition polymerization
(1997-09-08)
Wen, WK
;
Jou, JH
;
Chiou, JF
;
Chang, WP
;
Whang, WT
A novel method is presented herein regarding the preparation of a single-layer organic electroluminescent (EL) polymer thin film device. The device was made by simultaneously co-depositing two polymer thin film forming monomers, a hole-transporting molecule triphenyldiamine derivative (TPD) and an EL active molecule 1,1 4, 4-tetraphenyl-1,3-butadiene (TPB) on an indium-tin-oxide (ITO) glass substrate. The device structure was composed of the ITO glass, the TPD, and TPB co-doped polymer thin film, and a thermally evaporated aluminum electrode. Carrier injection from the two electrodes was significantly observed and the blue light in EL spectra, with an emission maximum at 435 nm, was triggered at a driving voltage of 17 V. (C) 1997 American Institute of Physics.