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Materials 2013, 6(3), 886-896; doi:10.3390/ma6030886
Article

Electronic Two-Transition-Induced Enhancement of Emission Efficiency in Polymer Light-Emitting Diodes

1,2
, 1
, 1,2,3,*  and 3,*
Received: 16 November 2012; in revised form: 21 February 2013 / Accepted: 27 February 2013 / Published: 6 March 2013
(This article belongs to the Special Issue Conjugated Polymers 2012)
Download PDF [448 KB, uploaded 6 March 2013]
Abstract: With the development of experimental techniques, effective injection and transportation of electrons is proven as a way to obtain polymer light-emitting diodes (PLEDs) with high quantum efficiency. This paper reveals a valid mechanism for the enhancement of quantum efficiency in PLEDs. When an external electric field is applied, the interaction between a negative polaron and triplet exciton leads to an electronic two-transition process, which induces the exciton to emit light and thus improve the emission efficiency of PLEDs.
Keywords: light-emitting diodes; polymers; excitons light-emitting diodes; polymers; excitons
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Chen, R.-A.; Wang, C.; Li, S.; George, T.F. Electronic Two-Transition-Induced Enhancement of Emission Efficiency in Polymer Light-Emitting Diodes. Materials 2013, 6, 886-896.

AMA Style

Chen R-A, Wang C, Li S, George TF. Electronic Two-Transition-Induced Enhancement of Emission Efficiency in Polymer Light-Emitting Diodes. Materials. 2013; 6(3):886-896.

Chicago/Turabian Style

Chen, Ren-Ai; Wang, Cong; Li, Sheng; George, Thomas F. 2013. "Electronic Two-Transition-Induced Enhancement of Emission Efficiency in Polymer Light-Emitting Diodes." Materials 6, no. 3: 886-896.


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