Journal
APPLIED PHYSICS LETTERS
Volume 83, Issue 17, Pages 3611-3613Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1623014
Keywords
-
Categories
Ask authors/readers for more resources
Electromodulation (EM) spectroscopy has been used to probe the electric field distribution in polymer light-emitting diodes. Below the turn-on bias, the EM spectrum is dominated by electroabsorption of the emissive layer. The electroabsorption signal vanishes above the turn-on bias. Under operation, the EM spectrum is composed of bleaching of the emissive layer absorption and excited state absorption from trapped charge with no trace of the electroabsorption signal remaining. We conclude that the internal electric field is effectively screened by accumulation of trapped electrons at the anode. (C) 2003 American Institute of Physics.
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