scholarly journals Direct probing of charge carrier behavior in multilayered organic light-emitting diode devices by time-resolved electric-field-induced sum-frequency generation spectroscopy

2017 ◽  
Vol 10 (10) ◽  
pp. 102101 ◽  
Author(s):  
Takayuki Miyamae ◽  
Noriyuki Takada ◽  
Hiroshi Ohata ◽  
Tetsuo Tsutsui
Keyword(s):  
Charge Carrier ◽  
Electric Field ◽  
Light Emitting Diode ◽  
Sum Frequency Generation ◽  
Time Resolved ◽  
Light Emitting ◽  
Sum Frequency ◽  
Organic Light Emitting Diode ◽  
Organic Light ◽  
Sum Frequency Generation Spectroscopy

A hybrid white organic light-emitting diode with stable color and reduced efficiency roll-off by using a bipolar charge carrier switch

2012 ◽  
Vol 13 (6) ◽  
pp. 1049-1055 ◽  
Author(s):  
Fangchao Zhao ◽  
Zhiqiang Zhang ◽  
Yipeng Liu ◽  
Yanfeng Dai ◽  
Jiangshan Chen ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light ◽  
Bipolar Charge

Superb lifetime of blue organic light-emitting diodes through engineering interface carrier blocking layers and adjusting electron leakage and an unusual efficiency variation at low electric field

2018 ◽  
Vol 6 (31) ◽  
pp. 8472-8478 ◽  
Author(s):  
Taekyung Kim ◽  
Kyung Hyung Lee ◽  
Jun Yeob Lee
Keyword(s):  
Electric Field ◽  
Electron Density ◽  
Light Emitting Diodes ◽  
Light Emitting Diode ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Electron Leakage ◽  
Organic Light Emitting Diode ◽  
Organic Light ◽  
Long Lifetime

An extremely long lifetime blue organic light-emitting diode (OLED) was developed through managing the electron density and an S-shaped variation of efficiency in blue fluorescent organic light-emitting diodes (FOLEDs) using carrier blocking layers and systematically analyzed in conjunction with the efficiency–lifetime interrelationship.

Residual Image Reduction Using Electric Field Shield Metal in Plastic Organic Light-Emitting Diode Display

2020 ◽  
Vol 20 (11) ◽  
pp. 6884-6889
Author(s):  
Do Young Won ◽  
Manh-Cuong Nguyen ◽  
Hyun Min Kim ◽  
Nam Kyun Tak ◽  
Jin Hyung Choi ◽  
...  
Keyword(s):  
Thin Film ◽  
Electric Field ◽  
Computer Aided Design ◽  
Light Emitting Diode ◽  
Thin Film Transistor ◽  
Organic Layer ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light ◽  
Residual Image

A plastic organic light-emitting diode display is a device that emits light in an organic layer in proportion to the amount of current applied from a thin film transistor, which constitutes a pixel. However, it was confirmed that the residual image was shown by the operation of the thin film transistor. To suppress residual image, the effect of electric field was studied in operation of a-IGZO thin film transistor. The a-IGZO thin film transistor, in which a polyimide film was used as a substrate, was applied as a driving thin film transistor for pixel circuits in a plastic organic light-emitting diode display, and the effect of the electric field behavior inside the film on residual images was studied. Residual images were strongly connection with the electric field distribution characteristics inside the polyimide substrate, and they were reduced by introducing an electric field shield metal layer in the a-IGZO thin film transistor. The correlation between residual image generation and the operation of the a-IGZO thin film transistor was further explained through technology computer-aided design simulation (Silvaco Group Inc.).

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