Solution-Processed Metal-Oxide p–n Charge Generation Junction for High-Performance Inverted Quantum-Dot Light-Emitting Diodes
Source abstract
Abstract
We report solution-processed metal-oxide p–n junction, Li-doped CuO (Li:CuO) and Li-doped ZnO (Li:ZnO), as a charge generation junction (CGJ) in quantum-dot light-emitting diode (QLED) at reverse bias. Efficient charge generation is demonstrated in a stack of air-annealed Li:CuO and Li:ZnO layers in QLEDs. Air annealing of Li:ZnO on Li:CuO turns out to be a key process to decrease oxygen vacancy (V o ) and increase the copper (II) oxide (CuO) fraction at the Li:CuO/Li:ZnO interface for efficient charge generation. Green QLEDs incorporating Li:CuO/Li:ZnO CGJ show the maximum current and power efficiencies of 35.4 cd/A and 33.5 lm/W, respectively.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Quantum Dots Synthesis And Properties · Semiconductor materials and devices · Nanowire Synthesis and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Advanced Display Research Center (ADRC), Department of Information Display, Kyung Hee University, Dongdaemoon-ku, Seoul 130-701, Korea
Funding
Korea Evaluation Institute of Industrial Technology
References (28)
Show source-provided references
1. 10.1002/adfm.20110213610.1002/adfm.201102136 ↗
2. 10.1002/adma.20150186610.1002/adma.201501866 ↗
3. 10.1016/j.jlumin.2015.08.04010.1016/j.jlumin.2015.08.040 ↗
4. 10.1039/C4TC02875A10.1039/C4TC02875A ↗
5. 10.1016/j.jlumin.2015.08.04810.1016/j.jlumin.2015.08.048 ↗
6. 10.1021/acsphotonics.5b0001010.1021/acsphotonics.5b00010 ↗
7. 10.1039/c3tc30505h10.1039/c3tc30505h ↗
8. 10.1039/C2TC00339B10.1039/C2TC00339B ↗
9. 10.1021/cm501898y10.1021/cm501898y ↗
10. 10.1002/smll.20130395910.1002/smll.201303959 ↗
11. 10.1021/am402745t10.1021/am402745t ↗
12. 10.1039/C6NR01927G10.1039/C6NR01927G ↗
13. 10.1002/adfm.20120226910.1002/adfm.201202269 ↗
14. 10.1002/adma.20140539110.1002/adma.201405391 ↗
15. 10.1073/pnas.071199010510.1073/pnas.0711990105 ↗
16. 10.1002/aenm.20110023410.1002/aenm.201100234 ↗
17. 10.1016/j.orgel.2010.08.00910.1016/j.orgel.2010.08.009 ↗
18. 10.1016/j.snb.2010.02.04510.1016/j.snb.2010.02.045 ↗
19. 10.1063/1.282240310.1063/1.2822403 ↗
20. 10.1021/acsami.5b0088310.1021/acsami.5b00883 ↗
21. 10.1021/acsami.5b0650510.1021/acsami.5b06505 ↗
22. 10.1016/j.orgel.2014.11.01810.1016/j.orgel.2014.11.018 ↗
23. 10.1016/j.apsusc.2007.12.01910.1016/j.apsusc.2007.12.019 ↗
24. 10.1149/2.081202jes10.1149/2.081202jes ↗
25. 10.1016/j.apenergy.2015.01.11610.1016/j.apenergy.2015.01.116 ↗
26. 10.1002/adfm.20100229010.1002/adfm.201002290 ↗
27. 10.1021/cm061032+10.1021/cm061032+ ↗
28. 10.1063/1.490387410.1063/1.4903874 ↗