Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 5, Issue 3, Pages 965-971Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am3026097
Keywords
organic light-emitting diode; white; nondoped emissive layer; ultrathin emissive layer; interface doping; simple
Funding
- Science Fund for Creative Research Groups of NSFC [20921061]
- National Natural Science Foundation of China [50973104, 60906020, 61036007, 60937001]
- Ministry of Science and Technology of China (973 program) [2009CB623604, 2009CB930603]
- Foundation of Jilin Research Council [201105028, 20090127]
Ask authors/readers for more resources
In this paper, highly efficient and simple monochrome blue, green, orange, and red organic light emitting diodes (OLEDs) based on ultrathin nondoped emissive layers (EMLs) have been reported. The ultrathin nondoped EML was constructed by introducing a 0.1 nm thin layer of pure phosphorescent dyes between a hole transporting layer and an electron transporting layer. The maximum external quantum efficiencies (EQEs) reached 17.1%, 20.9%, 17.3%, and 19.2% for blue, green, orange, and red monochrome OLEDs, respectively, indicating the universality of the ultrathin nondoped EML for most phosphorescent dyes. On the basis of this, simple white OLED structures are also demonstrated. The demonstrated complementary blue/orange, three primary blue/green/red, and four color blue/green/orange/red white OLEDs show high efficiency and good white emission, indicating the advantage of ultrathin nondoped EMLs on constructing simple and efficient white OLEDs.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available