Recombination profiles in poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] light-emitting electrochemical cells

Leger, J.M.; Carter, S.A.; Ruhstaller, Beat

doi:10.1063/1.2149162

Publication type:	Article in scientific journal
Type of review:	Peer review (publication)
Title:	Recombination profiles in poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] light-emitting electrochemical cells
Authors:	Leger, J.M. Carter, S.A. Ruhstaller, Beat
DOI:	10.1063/1.2149162
Published in:	Journal of Applied Physics
Volume(Issue):	98
Issue:	12
Issue Date:	30-Dec-2005
Publisher / Ed. Institution:	American Institute of Physics
ISSN:	0021-8979 1089-7550
Language:	English
Subjects:	Simulation
Subject (DDC):	621.3: Electrical, communications, control engineering
Abstract:	We present a study on the optical and electronic properties of light-emitting electrochemical cells (LECs) based on poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) with the goal of understanding emission profiles and characterizing salt and electrode dependence. Direct imaging of photoluminescence and electroluminescence profiles of planar LECs and simulations of optical interference effects were performed in order to gain insight into emission profiles in vertical structure LECs. While our results are consistent with oxidative doping, they imply a lack of reductive doping in LECs under normal operating conditions. We observe that trends in emission profiles are independent of thickness, salt, and electrode type. In addition, device current-voltage (I-V) and radiance characteristics were measured as a function of salt and electrode type. Variations in the I-V characteristics, turn-on voltage, and rectification are observed for devices with Al versus. Au contacts and for salts with varied cation type. Finally, we discuss the implications of our findings on the operating mechanism of LECs.
URI:	https://digitalcollection.zhaw.ch/handle/11475/6972
Fulltext version:	Published version
License (according to publishing contract):	Licence according to publishing contract
Departement:	School of Engineering
Organisational Unit:	Institute of Computational Physics (ICP)
Appears in collections:	Publikationen School of Engineering

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Leger, J. M., Carter, S. A., & Ruhstaller, B. (2005). Recombination profiles in poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] light-emitting electrochemical cells. Journal of Applied Physics, 98(12). https://doi.org/10.1063/1.2149162

Leger, J.M., Carter, S.A. and Ruhstaller, B. (2005) ‘Recombination profiles in poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] light-emitting electrochemical cells’, Journal of Applied Physics, 98(12). Available at: https://doi.org/10.1063/1.2149162.

J. M. Leger, S. A. Carter, and B. Ruhstaller, “Recombination profiles in poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] light-emitting electrochemical cells,” Journal of Applied Physics, vol. 98, no. 12, Dec. 2005, doi: 10.1063/1.2149162.

LEGER, J.M., S.A. CARTER und Beat RUHSTALLER, 2005. Recombination profiles in poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] light-emitting electrochemical cells. Journal of Applied Physics. 30 Dezember 2005. Bd. 98, Nr. 12. DOI 10.1063/1.2149162

Leger, J.M., S.A. Carter, and Beat Ruhstaller. 2005. “Recombination Profiles in Poly[2-Methoxy-5-(2-Ethylhexyloxy)-1,4-Phenylenevinylene] Light-Emitting Electrochemical Cells.” Journal of Applied Physics 98 (12). https://doi.org/10.1063/1.2149162.

Leger, J. M., et al. “Recombination Profiles in Poly[2-Methoxy-5-(2-Ethylhexyloxy)-1,4-Phenylenevinylene] Light-Emitting Electrochemical Cells.” Journal of Applied Physics, vol. 98, no. 12, Dec. 2005, https://doi.org/10.1063/1.2149162.