scholarly journals Interplay between Charge Injection, Electron Transport, and Quantum Efficiency in Ambipolar Trilayer Organic Light‐Emitting Transistors

2022 ◽  
pp. 2101926
Author(s):  
Salvatore Moschetto ◽  
Emilia Benvenuti ◽  
Hakan Usta ◽  
Resul Ozdemir ◽  
Antonio Facchetti ◽  
...  
Keyword(s):  
Electron Transport ◽  
Quantum Efficiency ◽  
Charge Injection ◽  
Light Emitting ◽  
Organic Light ◽  
Light Emitting Transistors

Efficient blue-green molecular organic light emitting diodes based on novel silole derivatives

2002 ◽  
Vol 725 ◽  
Author(s):  
Leonidas C. Palilis ◽  
Hideyuki Murata ◽  
Antti J. Mäkinen ◽  
Manabu Uchida ◽  
Zakya H. Kafafia
Keyword(s):  
Electron Transport ◽  
Quantum Efficiency ◽  
Light Emitting Diodes ◽  
Hole Transport ◽  
Organic Light Emitting Diodes ◽  
Operating Voltage ◽  
High Electron ◽  
Blue Fluorescence ◽  
Light Emitting ◽  
Organic Light

AbstractWe report on highly efficient molecular organic light-emitting diodes (MOLEDs) using two novel silole derivatives as emissive and electron transport materials. A silole derivative, namely 2,5-di-(3-biphenyl)-1,1-dimethyl-3,4-diphenylsilacyclopentadiene (PPSPP), which shows blue fluorescence with a high photoluminescence quantum yield of 85% in the solid state, was used as the emissive material. Another silole derivative, namely 2,5-bis-(2‘2“-bipyridin-6-yl)-1,1- dimethyl-3,4-diphenylsilacyclopentadiene (PyPySPyPy), that exhibits a non-dispersive high electron mobility of 2x10-4 cm2/Vsec was used as the electron transport material. MOLEDs using these two siloles and a common hole transport material show blue-green emission centered at 495 nm. This red-shifted electroluminescence (EL) band relative to the blue fluorescence of PPSPP is assigned to a PPSPP:NPB exciplex. A low operating voltage of 4.5 V was measured at a luminance of 100 cd/m2 and an EL quantum efficiency of 3.4% was achieved at 100 A/m2. To our knowledge, this is the highest EL quantum efficiency ever reported based on exciplex emission.

Influence of source/drain electrodes on external quantum efficiency of ambipolar organic light-emitting transistors

2014 ◽  
Vol 15 (1) ◽  
pp. 105-110 ◽  
Author(s):  
Ikuya Ikezoe ◽  
Hitoshi Tanaka ◽  
Koichi Hiraoka ◽  
Hirotake Kajii ◽  
Yutaka Ohmori
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Light Emitting ◽  
Organic Light ◽  
Light Emitting Transistors

scholarly journals Organic Light-Emitting Transistors with Simultaneous Enhancement of Optical Power and External Quantum Efficiency via Conjugated Polar Polymer Interlayers

2018 ◽  
Vol 10 (30) ◽  
pp. 25580-25588 ◽  
Author(s):  
Mario Prosa ◽  
Emilia Benvenuti ◽  
Mariacecilia Pasini ◽  
Umberto Giovanella ◽  
Margherita Bolognesi ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Optical Power ◽  
Light Emitting ◽  
Organic Light ◽  
Light Emitting Transistors ◽  
Polar Polymer

A strategy to boost external quantum efficiency of organic light-emitting transistors

2019 ◽  
Vol 115 (4) ◽  
pp. 043301
Author(s):  
Seong-Yong Cho ◽  
Sei-Yong Kim ◽  
Sohee Jeon ◽  
Rino Choi ◽  
Jeong-Hwan Lee
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Light Emitting ◽  
Organic Light ◽  
Light Emitting Transistors

Organic Light‐Emitting Transistors Entering a New Development Stage

2021 ◽  
pp. 2007149
Author(s):  
Zhengsheng Qin ◽  
Haikuo Gao ◽  
Huanli Dong ◽  
Wenping Hu
Keyword(s):  
Development Stage ◽  
Light Emitting ◽  
Organic Light ◽  
New Development ◽  
Light Emitting Transistors
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