Title :
Nanocrystal LEDs with enhanced external quantum efficiency enabled by the use of phosphorescent molecules
Author :
Mutlugun, Evren ; Abiyasa, Agus Putu ; Guzelturk, Burak ; Yuan Gao ; Kheng Swee Leck ; Xiao Wei Sun ; Demir, Hilmi Volkan
Author_Institution :
LUMINOUS! Centre of Excellence for Semicond. Lighting & Displays, Nanyang Technol. Univ., Singapore, Singapore
Abstract :
We report efficiency enhancement in quantum dot (QD) based LEDs with the aid of excitonic energy transfer from co-doped TCTA:Ir(ppy)3 layer to CdSe/ZnS QDs while providing spectrally pure emission.
Keywords :
II-VI semiconductors; cadmium compounds; excitons; nanophotonics; organic compounds; organic light emitting diodes; phosphorescence; semiconductor quantum dots; wide band gap semiconductors; zinc compounds; CdSe-ZnS; TCTA:Ir(ppy)3 layer; excitonic energy transfer; external quantum efficiency; nanocrystal LED; phosphorescent molecules; quantum dot; spectral emission; Educational institutions; Electroluminescence; Energy exchange; Excitons; Indium tin oxide; Light emitting diodes; Quantum dots;
Conference_Titel :
Photonics Conference (IPC), 2013 IEEE
Conference_Location :
Bellevue, WA
Print_ISBN :
978-1-4577-1506-8
DOI :
10.1109/IPCon.2013.6656493
