Solution-Processed White Light-Emitting Diode Utilizing Hybrid Polymer and Red--Green--Blue Quantum Dots

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概要

• 論文の詳細を見る

• A hybrid polymer-quantum dots (QDs) white light-emitting diode (WLEDs) device with a multi-layer structure by all solution processing is simply fabricated by using a spin coating technique. From transmission electron microscopy (TEM) study, red--green--blue (RGB) CdSe/ZnS QDs are mainly distributed along with the circumference of poly(N-vinylcarbazole) (PVK) surfaces, resulting in core--shell hybrid polymer-QDs of [RGB CdSe/ZnS QDs]/PVK. The Al/Cs2CO3/[RGB CdSe/ZnS QDs+PVK]/poly[(N,N\aku '-bis(4-butylphenyl)-N,N\aku '-bis(phenyl)benzidine)] (poly-TPD)/poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS)/indium--tin-oxide (ITO)/glass WLEDs shows electroluminescence (EL) centered at around 474, 544, and 629 nm with CIE coordinates, (0.44,0.32) at the forward bias +11 V, which clearly reveals that CdSe/ZnS QDs existing at the interface between PVK plays as a recombination center of exciton.

• 2012-09-25

著者

• Son Dong

  Interface Control Research Center, Future Convergence Technology Division, Korea Institute of Science and Technology, Seoul 130-650, Korea

• Choi Won-Kook

  Interface Control Research Center, Future Convergence Technology Division, Korea Institute of Science and Technology, Seoul 130-650, Korea

• Park Dong-Hee

  Interface Control Research Center, Future Convergence Technology Division, Korea Institute of Science and Technology, Seoul 130-650, Korea

• Kwon Byoung

  Interface Control Research Center, Future Convergence Technology Division, Korea Institute of Science and Technology, Seoul 130-650, Korea

• Choi Heon-Jin

  Department of Materials Science and Engineering, Yonsei University, Seoul 120-749, Korea

• Park Dong-Hee

  Interface Control Research Center, Future Convergence Research Division, Korea Institute of Science and Technology, Seoul 136-791, Korea

関連論文

• Solution-Processed White Light-Emitting Diode Utilizing Hybrid Polymer and Red--Green--Blue Quantum Dots
• Effect of Indium--Tin-Oxide Schottky Contact on the Resistance Switching of NiO Film
• Effect of Indium-Tin-Oxide Schottky Contact on the Resistance Switching of NiO Film

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