Special Section on Solid-State Lighting: Photonics and Technologies

Alternative model for injection-limited current into organic solids

[+] Author Affiliations
Mohammad-Reza Fathollahi, Ezeddin Mohajerani

Shahid Beheshti University, Laser and Plasma Research Institute, G.C., Tehran 1983963113, Iran

Mohammad-Javad Sharifi

Shahid Beheshti University, Faculty of Electrical and Computer Engineering, G.C., Tehran 1983963113, Iran

Farhad Akbari Boroumand, Farshid Raissi

K. N. Toosi University of Technology, Faculty of Electrical and Computer Engineering, P.O. Box 16315-1355, Tehran 1631714191, Iran

J. Photon. Energy. 5(1), 057610 (May 26, 2015). doi:10.1117/1.JPE.5.057610
History: Received February 28, 2015; Accepted April 22, 2015
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Abstract.  This study demonstrates an analytical relation that models the carrier injection in metal-organic interfaces and which considers two consecutive carriers hopping as the injection mechanism. The new formula has superior attributes and can surpass conventional relations, in particular the thermionic emission-diffusion formula. For example, the model can properly trace the temperature dependency of the injection up to temperatures as low as 30 K and the full range of electric fields. Also, the prominence of joule heating for proper modeling of the injection is presented. This study examines the validity of the introduced analytical equation by exploring the injection in several practical contacts extracted from the literature, the results of which are discussed in this paper.

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© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Mohammad-Reza Fathollahi ; Mohammad-Javad Sharifi ; Farhad Akbari Boroumand ; Farshid Raissi and Ezeddin Mohajerani
"Alternative model for injection-limited current into organic solids", J. Photon. Energy. 5(1), 057610 (May 26, 2015). ; http://dx.doi.org/10.1117/1.JPE.5.057610


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