High frequency alternating current light-emitting diodes using Langmuir–Blodgett films

1998 ◽  
Vol 327-329 ◽  
pp. 668-670 ◽  
Author(s):  
R. Österbacka ◽  
A.J. Pal ◽  
H. Stubb
Keyword(s):  
High Frequency ◽  
Light Emitting Diodes ◽  
Alternating Current ◽  
Light Emitting ◽  
Langmuir Blodgett ◽  
Langmuir Blodgett Films

Alternating-Current Light-Emitting Diodes and their Transient Characteristics: Response Time and Carrier Transport

1997 ◽  
Vol 488 ◽  
Author(s):  
A. J. Pal ◽  
T. öStergÅrd ◽  
R. österbacka ◽  
K-M. KÄllman ◽  
H. Stubb
Keyword(s):  
Carrier Transport ◽  
Light Emitting Diodes ◽  
Response Times ◽  
Alternating Current ◽  
Film Deposition ◽  
Blodgett Film ◽  
Light Emitting ◽  
Langmuir Blodgett ◽  
Electroluminescence Intensity

AbstractWe report the fabrication and characterization of alternating current light-emitting diodes (LEDs) with quinquethiophene as the emitting material. We have obtained equal electroluminescence intensity in both bias sections. From the frequency response of the LEDs, we have estimated the device response times and compared them with the response times obtained from the transient response of dc LEDs. Langmuir-Blodgett film deposition technique has been employed to control the thickness of the emitting layer on the molecular scale. We have shown that the response times originate from the accumulation rather than the transit of charge carriers. We have compared the photo- and electroluminescence spectra of QT LEDs.

Light-emitting diodes of poly(3-hexylthiophene) Langmuir-Blodgett films

1997 ◽  
Vol 85 (1-3) ◽  
pp. 1249-1250 ◽  
Author(s):  
T. ÖstergArd ◽  
A.J. Pal ◽  
J. Paloheimo ◽  
H. Stubb
Keyword(s):  
Light Emitting Diodes ◽  
Light Emitting ◽  
Langmuir Blodgett ◽  
Langmuir Blodgett Films

Langmuir and Langmuir-Blodgett Films of Polyfluorenes and Their Use in Polymer Light-Emitting Diodes

2006 ◽  
Vol 14 (1) ◽  
pp. 39-44 ◽  
Author(s):  
Marystela Ferreira ◽  
Clarissa A. Olivati ◽  
Angelita M. Machado ◽  
Andressa M. Assaka ◽  
José A. Giacometti ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Light Emitting ◽  
Langmuir Blodgett ◽  
Langmuir Blodgett Films ◽  
Polymer Light Emitting Diodes

Organic light-emitting diodes (LEDs) based on Langmuir-Blodgett films containing rare-earth complexes

1996 ◽  
Vol 76 (1-3) ◽  
pp. 91-93 ◽  
Author(s):  
M.S. Weaver ◽  
D.G. Lidzey ◽  
M.A. Pavier ◽  
H. Mellor ◽  
S.L. Thorpe ◽  
...  
Keyword(s):  
Rare Earth ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Rare Earth Complexes ◽  
Light Emitting ◽  
Langmuir Blodgett ◽  
Organic Light ◽  
Langmuir Blodgett Films
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