Enhancement of electron injection in polymer light-emitting diodes with a supramolecular insulating nanolayer on the bottom cathode
SCIE
SCOPUS
- Title
- Enhancement of electron injection in polymer light-emitting diodes with a supramolecular insulating nanolayer on the bottom cathode
- Authors
- Cho, JH; Lee, HS; Jang, Y; Lee, Y; Kwon, SK; Jang, J; Cho, K
- Date Issued
- 2006-08-21
- Publisher
- AMER INST PHYSICS
- Abstract
- With the aim of enhancing the electron injection of a polymer light-emitting diode (PLED), a supramolecular insulating nanolayer that reacts with the cathode (Ag) was inserted between the bottom cathode and the emitting material. The PLED threshold voltage (for 1 cd/m(2)) was found to decrease from 5.6 to 4.2 V as a result of the introduction of the nanolayer. Synchrotron radiation photoelectron spectroscopy results show that inserting the supramolecular insulating nanolayer results in a decrease in the work function of about 0.7 eV. This reduction lowers the electron injection barrier and produces an increase in the luminance. (c) 2006 American Institute of Physics.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/9528
- DOI
- 10.1063/1.2338534
- ISSN
- 0003-6951
- Article Type
- Article
- Citation
- APPLIED PHYSICS LETTERS, vol. 89, no. 8, page. 83508 - 83508, 2006-08-21
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