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Highly Efficient Quantum-Dot Light Emitting Diodes With Dna-Ctma As Combined Hole Transporting And Electron-Blocking Layer, Q. Sun, Guru Subramanyam, Liming Dai, M. Check, A. Campbell, Rajesh Naik, James Grote, Yongqiang Wang
Highly Efficient Quantum-Dot Light Emitting Diodes With Dna-Ctma As Combined Hole Transporting And Electron-Blocking Layer, Q. Sun, Guru Subramanyam, Liming Dai, M. Check, A. Campbell, Rajesh Naik, James Grote, Yongqiang Wang
Guru Subramanyam
Owing to their narrow bright emission band, broad size-tunable emission wavelength, superior photostability, and excellent flexible-substrate compatibility, light-emitting diodes based on quantum dots (QD-LEDs) are currently under intensive research and development for multiple consumer applications including flat-panel displays and flat lighting. However, their commercialization is still precluded by the slow development to date of efficient QD-LEDs as even the highest reported efficiency of 2.0% cannot favorably compete with their organic counterparts. Here, we report QD-LEDs with a record high efficiency (∼4%), high brightness (∼6580 cd/m2), low turn-on voltage (∼2.6 V), and significantly improved color purity by simply using deoxyribonucleic acid …