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Improvement in Device Performance and Reliability of Organic Light-Emitting Diodes through Deposition Rate Control
Joint Authors
Lee, Chih-Chien
Chung, Yu-Ting
Lee, Jiun-Haw
Chen, Chin-Ti
Wang, Juen-Kai
Liu, Shun-Wei
Source
International Journal of Photoenergy
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-04-27
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
We demonstrated a fabrication technique to reduce the driving voltage, increase the current efficiency, and extend the operating lifetime of an organic light-emitting diode (OLED) by simply controlling the deposition rate of bis(10-hydroxybenzo[h]qinolinato) beryllium (Bebq2) used as the emitting layer and the electron-transport layer.
In our optimized device, 55 nm of Bebq2 was first deposited at a faster deposition rate of 1.3 nm/s, followed by the deposition of a thin Bebq2 (5 nm) layer at a slower rate of 0.03 nm/s.
The Bebq2 layer with the faster deposition rate exhibited higher photoluminescence efficiency and was suitable for use in light emission.
The thin Bebq2 layer with the slower deposition rate was used to modify the interface between the Bebq2 and cathode and hence improve the injection efficiency and lower the driving voltage.
The operating lifetime of such a two-step deposition OLED was 1.92 and 4.6 times longer than that of devices with a single deposition rate, that is, 1.3 and 0.03 nm/s cases, respectively.
American Psychological Association (APA)
Liu, Shun-Wei& Lee, Chih-Chien& Chung, Yu-Ting& Lee, Jiun-Haw& Chen, Chin-Ti& Wang, Juen-Kai. 2014. Improvement in Device Performance and Reliability of Organic Light-Emitting Diodes through Deposition Rate Control. International Journal of Photoenergy،Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1036907
Modern Language Association (MLA)
Liu, Shun-Wei…[et al.]. Improvement in Device Performance and Reliability of Organic Light-Emitting Diodes through Deposition Rate Control. International Journal of Photoenergy No. 2014 (2014), pp.1-7.
https://search.emarefa.net/detail/BIM-1036907
American Medical Association (AMA)
Liu, Shun-Wei& Lee, Chih-Chien& Chung, Yu-Ting& Lee, Jiun-Haw& Chen, Chin-Ti& Wang, Juen-Kai. Improvement in Device Performance and Reliability of Organic Light-Emitting Diodes through Deposition Rate Control. International Journal of Photoenergy. 2014. Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1036907
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1036907