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23 September 2016 Enhanced color purity of blue OLEDs based on well-design structure
Qianqian Du, Wenjun Wang, Shuhong Li, Qingru Wang, Shuzhen Xia, Bingyuan Zhang, Minghong Wang, Quli Fan
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Proceedings Volume 9941, Organic Light Emitting Materials and Devices XX; 99411O (2016) https://doi.org/10.1117/12.2235909
Event: SPIE Organic Photonics + Electronics, 2016, San Diego, California, United States
Abstract
We have fabricated blue organic light-emitting devices (OLEDs) with higher color purity and stability by optimizing the structure of the Glass/ITO/NPB(50 nm)/ BCzVBi (30 nm)/ TPBi (x nm)/Alq3(20 nm)/LiF/Al. The results show that the introducing of hole blocking layer(HBL) TPBi greatly can improve not only the color purity but the color stability, which owe to its higher the Highest Occupied Molecular Orbital (HOMO) energy levels of 6.2 eV. We expect our work will be useful to optimizing the blue OLEDs structure to enhancing the color property.
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Qianqian Du, Wenjun Wang, Shuhong Li, Qingru Wang, Shuzhen Xia, Bingyuan Zhang, Minghong Wang, and Quli Fan "Enhanced color purity of blue OLEDs based on well-design structure", Proc. SPIE 9941, Organic Light Emitting Materials and Devices XX, 99411O (23 September 2016); https://doi.org/10.1117/12.2235909
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KEYWORDS
Organic light emitting diodes
Organic light emitting diodes
Electroluminescence
Neodymium
Aluminum
Bismuth
Molecules
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